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Trust Your Local Experts

Commercial Electrical Services in Indianapolis

Lighting Upgrades, Security & Safety Electrical Maintenance & Repair
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Licensed & Insured Master Electricians
BBB Accredited A+ Rating
4.9★ Google Rating 215+ Reviews
Family Owned Locally Operated
Serving Indy & Surrounding Counties
Professional electrician working on a modern electrical panel
Licensed & Insured

Serving Central Indiana since 2022 with code-compliant electrical excellence.

The Zimmerman Summary

Commercial Electrical Services &
Repair in Indianapolis

Zimmerman Electric provides commercial electrical services across every major industry in Central Indiana offices, restaurants, retail stores, warehouses, healthcare facilities, hotels, schools, and multi-tenant properties.

The scope of work ranges from single-circuit repairs and LED lighting retrofits to complete tenant improvement build outs, panel upgrades, generator installations, security system wiring, and full electrical rough-in for new commercial construction. Whatever the project, the same licensed team handles it from assessment through inspection with no subcontracting and no surprises on the invoice.

What separates Zimmerman Electric in the commercial market is accountability. This is a family-owned business Zach and Kara Zimmerman personally stand behind every commercial project completed under their name.

That means transparent estimates before work begins, scheduling that works around business hours to minimize operational disruption, code-compliant work that passes inspection the first time, and communication that keeps the right people informed throughout the project.

Our Commercial Electrical Services

The following is an overview of our most commonly requested commercial electrical services. Don't see what you need? Call us at 317-939-9197 , if it involves commercial electrical work, we can help.

Indoor Lighting

Electrical Installation, Maintenance & Upgrades

We offer a complete range of commercial electrical installation, maintenance, and upgrade services designed to keep your business running safely, efficiently, and up to current code standards. From minor adjustments to major system overhauls, we provide reliable, forward-thinking solutions that minimize disruption and maximize performance.

  • Electrical System Upgrades & Retrofits to modernizing outdated commercial electrical systems to meet current code standards.
  • Electrical Maintenance & Repairs with scheduled and emergency maintenance to minimize downtime and keep your facility running.
  • Electrical Safety Inspections of commercial electrical systems to identify hazards, code violations, and maintenance needs.
  • LED retrofits and lighting system upgrades that reduce energy costs significantly while improving light quality throughout your facility.
  • Standby generator systems installed and wired for automatic transfer , keeping your business operational during utility outages.
  • Outlet Additions & Relocations, involving the installation of new outlet circuits and relocation of existing ones to accommodate evolving workspace
  • 120V and 220V Outlet Installations for standard and high-voltage outlets to meet all commercial equipment and operational needs. 
Outdoor Lighting

Electrical Diagnostics & Repairs

Our licensed electric technicians use advanced diagnostic tools to pinpoint the root cause of failures, intermittent power loss, and safety concerns. We then execute targeted, code-compliant repairs to ensure maximum reliability and minimize future downtime.

  • Electrical Troubleshooting & Diagnosis of electrical faults, intermittent failures, tripping breakers, and power quality issues.
  • Commercial Panel Repairs & Upgrades with panel replacements, breaker upgrades, and service capacity to accommodate growing electrical loads.
  • For reliable Outlet & Switch Repairs and Replacements, we address faulty, worn, or non-compliant outlets and switches.
  • Circuit Breaker Repairs & Replacements for Individual breakers and entire breaker panels repaired or replaced to restore safe, reliable operation.
  • Electrical Wiring Repairs & Replacements for Damaged, aging, or non-compliant commercial wiring identified and replaced correctly and safely. 
Indoor Lighting

Lighting & Ballast Installation and Repair

We specialize in designing, installing, and maintaining commercial lighting systems that enhance visibility, improve security, and dramatically reduce energy costs. Our team handles everything from standard repairs to full-scale LED conversions and specialty fixture installations.

  • New commercial indoor and outdoor lighting systems designed and installed for offices, warehouses, parking areas, and building exteriors.
  • Motion-activated and always-on security lighting for building perimeters, parking lots, and entry points.
  • Task lighting, accent lighting, emergency exit lighting, and Specialty Lighting Installations for commercial environments.
  • Complete LED conversion for commercial spaces , significantly lower operating costs with improved light output.
  • Existing fixtures Lighting retrofitted with LED drivers and bulbs for maximum efficiency without full fixture replacement. 
Outdoor Lighting

Phone & Data Wiring

We provide the essential low-voltage wiring infrastructure for modern commercial communication and entertainment needs. Our services ensure seamless connectivity for your business operations.

  • Structured Phone & Data Line Installations and Upgrades, internet infrastructure, and data networks in commercial environments.
  • Cable and satellite TV wiring for conference rooms, lobbies, break rooms, and hospitality applications.
  • Power and signal wiring for commercial audio and video systems, conference room AV, and public display systems. 
Indoor Lighting

Security System Installation & Servicing

Our expertise extends to comprehensive security and access control systems. We handle all the necessary wiring and installation for cameras, motion detectors, and electronic access systems to protect your commercial facility, employees, and assets.

  • We provide comprehensive Security Camera Installation & Troubleshooting services, including the installation, wiring, and configuration.
  • We take care of the contact sensors for doors and windows , integrated into building security and alarm systems.
  • Card reader, keypad, and electronic access control wiring for controlled entry points in commercial facilities.
  • Wiring for commercial environments, including the integration of Presence Sensors & Speaker Systems.
  • Passive infrared and microwave motion detection wiring for security and automated lighting applications. 
Outdoor Lighting

Power Distribution Systems

We design, install, and upgrade robust, scalable power distribution systems tailored to the high demands of commercial and industrial facilities. This encompasses everything from the main service entrance to specialized equipment needs. Our services include:

  • Main Service Installation & Upgrades: Designing and installing new service entrances or increasing the capacity of existing systems to handle growing electrical loads, ensuring compliance with all NEC standards.
  • Subpanel Installation & Separation: Installing subpanels to extend circuits efficiently to remote areas, manage separate loads, or establish individual metering for multi-tenant properties.
  • Circuit Breaker Systems: Replacing faulty breakers and upgrading panels for enhanced safety and reliable operation, including modernization from legacy fuse-based systems.
  • Transformer Installation: Sizing and installing transformers necessary for specialized equipment or for adjusting voltage levels across your facility.
  • Busway and Raceway Systems: Implementing structured pathways for power delivery in large or flexible commercial and industrial environments.
  • We design and install reliable and scalable main and branch Power Distribution System Installations & Upgrades for commercial power needs.
  • Subpanels installations to extend circuits to remote areas of a facility or to separate tenant spaces in multi-tenant buildings.
  • Circuit Breaker Replacements for failed or faulty breakers must use devices that are correctly rated and code-compliant.
  • Legacy fuse-based systems replacement with modern circuit breaker panels for improved safety and reliability.
  • We take care of the transformers installation for specialized equipment or voltage requirements according to the standard. 

How It Works

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Call or Request
Online

Reach us by phone at 317-939-9197 or submit a free estimate request on our website. You'll speak with a real person , not a bot or an automated system.

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Receive a Free,
No-Pressure Estimate

We visit your home, assess the work, and give you a clear written estimate before anything begins. No pushy upsells. No commitment required. You decide if and when to move forward.

schedule

We Schedule
Around You

We work on your schedule. You'll know exactly who is coming, when they'll arrive, and what they'll be doing, with updates along the way.

qualitywork

Quality Work with
a Clean Finish

Our team arrives on time, wears shoe covers, and treats your home with complete respect. All work is done to code. All the mess is cleaned up before we leave.

Ready to Modernize Your Home With Our Expert Electrician? Get Your Free Estimate Now! link-arrow

Serving Indianapolis & Central Indiana Counties

We provide priority electrical service to homeowners and businesses across

Request Your Free
Estimate Today!

Fill out the form and our team will reach out within 24 hours to discuss your project and provide a transparent, no-obligation quote.

Why Indianapolis Homeowners
Choose Zimmerman Electric

At Zimmerman Electric, we understand that electrical work isn't just about wires and breakers, it's about the safety and comfort of your family and home. We're not a franchise, a call center, or a large corporation. We're Zach and Kara Zimmerman, a husband-and-wife team who started this company to serve Indianapolis with honesty, integrity, and genuine craftsmanship.

Every electrician we send to your home is licensed, background-checked, and trained to do the job right. We wear shoe covers, clean up every mess we make, and won't leave until the work is done correctly and you're completely satisfied.

Family Owned & Operated

Zimmerman Electric is a local Indianapolis business, not a franchise or national chain. The owner stands behind every project, and you speak with local community members when you call.

Licensed & Insured

Every electrician on our team is fully licensed and insured. We are registered with the Indianapolis Department of Business and Neighborhood Services (BNS), and all our work meets or exceeds the National Electrical Code. We pull all required permits and schedule inspections.

4.9-Star Google Rating

Our reputation is built on hundreds of positive reviews from real Indianapolis homeowners. We earn our rating on every job through quality workmanship for your home.

BBB Accredited

We maintain our Better Business Bureau accreditation because we believe in transparency, accountability, and resolving any concern quickly and fairly.

Respectful Service

Our electricians always wear shoe covers, lay down drop cloths where needed, and clean up completely before leaving.

Transparent Pricing

We provide detailed written estimates before work begins. No hidden fees, no surprise charges. You approve the scope and price before we start.

Full-Service Residential Capability

From new construction to emergency repair, from a single outlet replacement to a complete whole-home rewire, Zimmerman Electric handles the full scope of residential electrical work.

Master Electrician
Indy Local
Efficient Work
Zach's Quote

What Indianapolis Homeowners Say About Zimmerman Electric

Our commitment to 100% code-compliant excellence is reflected in the trust of homeowners and businesses across Indiana.

brian Brian

“Zimmerman Electric has been great to work with. Within two hours of first calling they were on site and provided the estimate. The team went above and beyond what was certainly a challenging installation. I am very impressed and will absolutely recommend them to anyone needing electrical services.”

Paul Linn Paul Linn

“Zimmerman electric is fast and efficient. I had messaged them a few days ago and wanted a price to install a Tesla wall charger at my house. He gave me a quote the same day and was able to install it before I brought the vehicle home. They did great work and cleaned up any mess they created after the work was done. They did a great job and would highly recommend them for all your electrical needs.”

Andrew Bastnagel Andrew Bastnagel

“Had a great experience with Zimmerman as they helped me install my home EV charger.They were quick to give an estimate, got me booked within a week and did great work! Highly recommend, great experience all around!”

brian Brian

“Zimmerman Electric has been great to work with. Within two hours of first calling they were on site and provided the estimate. The team went above and beyond what was certainly a challenging installation. I am very impressed and will absolutely recommend them to anyone needing electrical services.”

Paul Linn Paul Linn

“Zimmerman electric is fast and efficient. I had messaged them a few days ago and wanted a price to install a Tesla wall charger at my house. He gave me a quote the same day and was able to install it before I brought the vehicle home. They did great work and cleaned up any mess they created after the work was done. They did a great job and would highly recommend them for all your electrical needs.”

Andrew Bastnagel Andrew Bastnagel

“Had a great experience with Zimmerman as they helped me install my home EV charger.They were quick to give an estimate, got me booked within a week and did great work! Highly recommend, great experience all around!”

Recent Residential Electrical Projects in Indianapolis

Kitchen LED Install – Meridian Hills

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200-Amp Upgrade - Zionsville

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Landscape Lighting - Carmel

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New Home Wiring - Greenwood

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Tesla Wall Connector - Fishers

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Smart Switch Upgrade - IndyNorthside

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Basement Remodel - Noblesville

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Historical Rewiring - Fountain Square

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EXPERT ADVICE

The Complete Guide to Commercial Electrical Services
for Indianapolis Businesses

Your business runs on electricity. Every piece of equipment, every light fixture, every security camera, every POS terminal, every piece of HVAC equipment — all of it depends entirely on a commercial electrical system that is sized correctly, installed properly, and maintained consistently.

Yet for most Indianapolis business owners, the electrical system is the last thing on the priority list — until something goes wrong.

A tripping breaker during the dinner rush at a Broad Ripple restaurant. A lighting failure in a Fishers retail showroom. A power distribution failure that halts production in a Plainfield warehouse. An outdated panel that an insurance company refuses to cover for a Carmel office building. These are not hypothetical scenarios. They happen to real Indianapolis businesses every week — and in virtually every case, they are preventable.

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This guide exists to change that. Whether you own a small office suite, manage a multi-tenant commercial property, or operate a large industrial facility, this is the complete resource for understanding commercial electrical services in Indianapolis: what they are, when you need them, what they cost, how to hire the right commercial electrician, and how to keep your business protected long-term.

At Zimmerman Electric, we have been providing licensed commercial electrical services across Indianapolis and Central Indiana since 2022 — serving every major industry, from restaurants and retail stores to warehouses, healthcare facilities, hotels, and schools. Everything in this guide is drawn from real-world commercial electrical experience in the Indianapolis market.

What Is Commercial Electrical Work — And How Is It Different from Residential?

One of the most important things Indianapolis business owners need to understand before hiring any electrician is this: commercial electrical work is fundamentally different from residential electrical work. The code requirements are stricter. The voltages are higher. The systems are more complex. And the consequences of getting it wrong are far more significant.

The Core Differences Between Commercial and Residential Electrical Systems

Residential electrical systems operate primarily on 120V and 240V single-phase power — the standard household current that powers outlets, appliances, and lighting in a home. Commercial electrical systems, by contrast, frequently operate on three-phase power (typically 208V or 480V), which is required to run large HVAC equipment, industrial machinery, commercial kitchen equipment, elevators, and high-capacity lighting systems efficiently.

Here is a direct comparison to help clarify what separates commercial from residential electrical work:

Factor

Residential

Commercial

Power Type

Single-phase 120V/240V

Single or three-phase; 208V, 240V, 480V

Load Capacity

Typically 100–200 amps

200–4,000+ amps depending on facility

Wiring Method

Non-metallic sheathed cable (Romex)

Conduit (EMT, rigid), MC cable

Code Requirements

Residential NEC standards

Stricter commercial NEC + local codes

Permitting

Standard residential permits

Commercial permits with plan review

Panel Complexity

Single main panel; 20–40 circuits

Main switchgear + subpanels + distribution

Lighting Systems

Standard residential fixtures

High-bay, emergency egress, LED commercial

Safety Systems

Smoke detectors, GFCI

Fire alarm integration, emergency lighting, access control

Timeline Pressure

Flexible scheduling

Must minimize operational disruption

Liability

Homeowner risk

Significant business and liability exposure

The bottom line: commercial electrical work demands a contractor who understands the full scope of commercial systems — not one who primarily works in homes and occasionally takes on a business job. Always verify that your commercial electrician has genuine commercial experience, is licensed in Indiana for commercial projects, and carries the appropriate insurance for your facility type.

Commercial Electrical Services by Industry: What Indianapolis Businesses Need to Know

Different industries have fundamentally different electrical requirements. A restaurant's electrical needs are completely different from an office building's — and both are different from a warehouse, a medical office, or a hotel. Understanding what your industry actually requires helps you have a more informed conversation with your electrician, budget more accurately, and avoid surprises during installation or inspection.

Here is a detailed breakdown of the commercial electrical needs by the most common Indianapolis business property types.

Office Buildings & Professional Services

Office environments are among the most electrically diverse commercial spaces. They need reliable power distribution for workstations, servers, conference room AV equipment, lighting systems, HVAC, and security — all running simultaneously without interference or overload.

Key electrical needs for Indianapolis office buildings include:

  • Dedicated circuits for server rooms and IT closets
  • Structured data cabling and network infrastructure wiring
  • Conference room AV power and audio/video system integration
  • Energy-efficient LED lighting with dimming controls and occupancy sensors
  • Emergency egress lighting and exit sign wiring
  • Access control systems — card readers, keypads, door strikes
  • Sub-panel installations for growing or multi-tenant office properties
  • Panel capacity upgrades to support workstation density increases

One trend particularly relevant to Indianapolis office buildings in 2025: the increasing demand for EV charging infrastructure in employee and visitor parking areas. Commercial EV charging stations for offices are now a key amenity that attracts and retains talent — and Zimmerman Electric handles the full installation from panel assessment through permitting and final connection.

Restaurants & Food Service Facilities

Restaurant electrical systems are among the most demanding in the commercial sector. Commercial kitchens require dedicated high-amperage circuits for ranges, ovens, fryers, hood ventilation systems, walk-in coolers, and dishwashers — all running at the same time, every service.

A single commercial kitchen circuit failure can shut down an entire service. That is not a hypothetical — it is a real, frequent occurrence for Indianapolis restaurants operating on outdated or improperly installed electrical systems.

Critical electrical services for Indianapolis restaurants include:

  • High-amperage dedicated circuits for commercial cooking equipment (208V and 240V)
  • Hood ventilation and exhaust fan wiring with proper makeup air integration
  • Walk-in cooler and freezer dedicated circuits with proper GFCI protection
  • Exterior signage wiring — illuminated signs, LED channel letters, neon
  • Interior and exterior lighting installation and LED retrofit upgrades
  • POS system circuit installation and data wiring
  • Health code-compliant outlet placement in food preparation areas
  • Emergency lighting for egress compliance

Retail Stores & Showrooms

Retail environments require a specific blend of functional power distribution and high-quality lighting that showcases merchandise effectively. Poor lighting is directly correlated with reduced sales — and retrofitting retail lighting to LED is one of the fastest-payback electrical upgrades an Indianapolis retailer can make.

Commercial electrical services for Indianapolis retail properties include:

  • Display and accent lighting — track lighting, LED recessed, pendant fixtures
  • Energy-efficient LED retrofit for existing fluorescent fixtures
  • POS terminal and payment processing circuit installation
  • Exterior storefront and parking lot lighting
  • Illuminated exterior signage wiring
  • Security camera and access control system wiring
  • Outlet placement for display tables, kiosks, and interactive displays
  • Sub-panel installations for multi-tenant retail strip centers

Warehouses & Industrial Facilities

Industrial and warehouse electrical systems involve the highest voltage and amperage requirements of any commercial property type. Three-phase power, heavy equipment circuits, high-bay lighting, and robust power distribution panels are the core components of a well-designed industrial electrical system.

Key services for Indianapolis warehouses and industrial facilities:

  • High-bay LED lighting installation and retrofit — dramatically reduces energy costs
  • Three-phase power distribution systems and panel upgrades
  • Heavy equipment circuits — 208V, 240V, 480V for forklifts, CNC machines, compressors
  • Emergency generator installation with automatic transfer switches
  • EV charging infrastructure for electric forklift and fleet vehicle fleets
  • Sub-panel installations for remote warehouse zones and additions
  • Safety lighting and egress system wiring per OSHA and NEC requirements
  • Transformer installations for specialized voltage requirements

Healthcare & Medical Offices

Medical and healthcare electrical systems are subject to the strictest code requirements of any commercial property type. Patient safety, equipment reliability, and regulatory compliance are non-negotiable — and electrical failures in a healthcare setting carry consequences far beyond operational downtime.

Healthcare electrical requirements in Indianapolis include:

  • Life safety branch circuits separate from normal power circuits
  • Emergency power system wiring for critical equipment
  • Isolated ground circuits for sensitive medical diagnostic equipment
  • GFCI protection per NEC Article 517 (Healthcare Facilities)
  • Nurse call system wiring and power
  • Medical gas alarm panel wiring
  • Security and access control for controlled access areas
  • Reliable, redundant panel systems to prevent single points of failure

Hotels & Hospitality Properties

Hotels present a unique challenge: they combine residential-style electrical needs (guest rooms) with commercial-scale infrastructure (lobbies, conference rooms, kitchens, exterior grounds) — all required to operate 24/7 with virtually zero tolerance for outages or failures.

Commercial electrical services for Indianapolis hospitality properties include:

  • Guest room wiring and outlet modernization — USB outlets, dedicated EV circuits
  • Lobby, corridor, and common area lighting upgrades to LED
  • Conference room and ballroom AV power and lighting control systems
  • Kitchen and food service electrical for hotel restaurants
  • Exterior lighting — parking lot, entrance canopy, landscaping
  • Security camera and access control system wiring throughout the property
  • Emergency power and egress lighting per life safety code
  • EV charging station installation for guest parking

Schools & Educational Facilities

Educational facilities face a dual challenge: they must meet strict safety code requirements while also supporting the increasingly technology-dense learning environments of modern classrooms. Chromebook charging infrastructure, smartboard power, classroom PA systems, and building-wide security systems are now standard requirements for Indianapolis K-12 and private educational facilities.

Electrical services for Indianapolis schools and educational buildings:

  • Classroom circuit upgrades for technology integration — Chromebook charging, projectors, smartboards
  • Campus-wide LED lighting upgrades and energy management systems
  • Gym and cafeteria high-bay lighting installation
  • PA and intercom system power wiring
  • Security camera, motion detection, and access control system installation
  • Exterior sports field and parking lot lighting
  • Emergency egress and fire alarm system wiring
  • Sub-panel and service capacity upgrades to meet modern load requirements

New Commercial Construction

For new commercial construction projects in Indianapolis, the electrical contractor is one of the most critical trades on the project. The electrical rough-in sets the foundation for every system in the building — and mistakes made at the rough-in stage are expensive and time-consuming to correct after drywall is installed.

Zimmerman Electric coordinates directly with general contractors for commercial construction projects, providing:

  • Full electrical rough-in from foundation through finish
  • Coordination with other trades — HVAC, plumbing, fire suppression
  • Permit application and management through all required inspections
  • Service entrance and utility coordination with AES Indiana / IPL
  • Panel and switchgear specification and installation
  • Low-voltage rough-in — data, phone, security, AV
  • Final trim and device installation coordinated with your construction schedule

The Complete Commercial Electrical Services Catalog

This section provides a comprehensive overview of every commercial electrical service category Zimmerman Electric provides for Indianapolis businesses. Use this as a reference when planning projects, evaluating bids, or determining whether an electrical issue in your facility warrants a professional assessment.

1. Electrical Installation, Maintenance & System Upgrades

The foundation of any commercial electrical relationship is the installation, maintenance, and ongoing upgrade of your facility's core electrical infrastructure.

  • Electrical System Upgrades & Retrofits

Modernizing outdated commercial electrical systems to meet current NEC code standards and support increased power demands. This includes replacing aging wiring, upgrading main service entrances, and reconfiguring panel configurations that no longer meet the load requirements of the business.

  • Electrical Maintenance & Repairs

Scheduled preventive maintenance to identify and correct developing issues before they cause operational failures, plus responsive repair service for issues that arise outside of maintenance schedules. Preventive maintenance agreements are available for Indianapolis businesses that want to protect their electrical system proactively.

  • Electrical Safety Inspections

Comprehensive inspections of commercial electrical systems to identify code violations, fire hazards, overloaded circuits, deteriorating wiring, and equipment that presents risk to personnel or operations. Safety inspections are particularly important before lease renewals, property purchases, insurance renewals, and after any significant addition of electrical equipment.

  • Energy-Efficient Lighting Upgrades

LED retrofits and complete lighting system upgrades that significantly reduce energy consumption while improving light quality. Most Indianapolis commercial properties switching from fluorescent or metal halide to LED see 40–70% reductions in lighting energy costs with a typical payback period of 2–4 years.

  • Generator Installations

Standby generator systems installed and wired for automatic transfer, keeping your business operational during utility outages. Properly sized standby generators and automatic transfer switches are code-compliant solutions for businesses where power interruption creates safety risks, significant revenue loss, or data integrity concerns.

  • Outlet Additions & Relocations

New outlet circuits added or existing ones relocated to support changing workspace layouts, equipment needs, and technology infrastructure.

2. Electrical Diagnostics & Repairs

When electrical problems arise in your facility, accurate diagnosis is the critical first step. Guessing at the cause of an electrical fault — or attempting to repair without proper diagnosis — often results in recurring problems, wasted money, or safety hazards.

  • Electrical Troubleshooting & Diagnosis
  • Commercial Panel Repairs & Upgrades
  • Outlet & Switch Repairs and Replacements
  • Circuit Breaker Repairs & Replacements
  • Electrical Wiring Repairs & Replacements

Zimmerman Electric uses systematic diagnostic methods to identify the root cause of electrical problems — not just the symptom. A tripping breaker, for example, might indicate an overloaded circuit, a failing breaker, a wiring fault, or a piece of equipment drawing more current than it should. Each has a different solution, and treating the wrong cause wastes time and money while leaving the real problem in place.

3. Commercial Lighting — Installation, Retrofit & Repair

Commercial lighting directly affects employee productivity, customer experience, safety compliance, and operating costs. It is one of the most impactful investments an Indianapolis business can make in its facility — and one of the areas where LED upgrades deliver the most measurable return.

  • Indoor & Outdoor Lighting Installations
  • Security Lighting — motion-activated and perimeter
  • Specialty Lighting — task, accent, emergency egress, architectural
  • Full LED Lighting Upgrades — 40–70% energy cost reduction
  • Lighting Retrofitting — existing fixtures fitted with LED drivers and lamps

4. Phone & Data Wiring

Modern commercial electrical installations go well beyond power. Structured cabling, data networking infrastructure, and AV system wiring are integral parts of a functional commercial facility.

  • Phone & Data Line Installations and Upgrades — Cat5e, Cat6, Cat6A structured cabling
  • Cable & Satellite TV Wiring for conference rooms, lobbies, break rooms, hospitality applications
  • Audio & Video System Installations — conference room AV, public display systems, PA systems

5. Security System Installation & Servicing

Commercial security systems protect your people, your assets, and your liability exposure. Properly installed and integrated security systems are increasingly a requirement for commercial insurance coverage — and a practical necessity for any Indianapolis business operating after hours or in a multi-tenant environment.

  • Security Camera Installation & Troubleshooting — IP and analog systems
  • Door & Window Contact Sensors — integrated into building alarm systems
  • Access Control Systems — card readers, keypads, electronic door strikes
  • Presence Sensors & Speaker Systems
  • Motion Detection Systems — passive infrared and microwave detection

6. Power Distribution Systems

Power distribution is the engineering foundation of your commercial electrical system. Getting it right — with the right panel configuration, the right sub-panel placement, the right circuit layout, and the right overcurrent protection — determines whether your facility can safely and reliably handle its electrical load today and as your business grows.

  • Power Distribution System Installations & Upgrades
  • Sub-panel Installations for remote facility areas or tenant separation
  • Circuit Breaker Replacements
  • Fuse Box Upgrades & Replacements — legacy systems replaced with modern breaker panels
  • Transformer Installations & Upgrades — step-down and isolation transformers

10 Warning Signs Your Commercial Electrical System Needs Professional Attention

Most commercial electrical problems do not announce themselves dramatically. They develop gradually — through subtle signs that are easy to dismiss until they become failures, safety incidents, or code violations. Here are the ten warning signs Indianapolis business owners and facility managers should never ignore.

Warning Sign 1: Frequently Tripping Breakers

A circuit breaker that trips regularly is not malfunctioning — it is doing exactly what it is designed to do. It is telling you that the circuit is consistently overloaded. In a commercial setting, this almost always means one of three things: the circuit is undersized for the equipment running on it; too many devices are sharing a circuit that was not designed for the current load; or there is a wiring fault drawing excessive current.

Regularly resetting tripped breakers without addressing the underlying cause creates real risk of electrical fire, equipment damage, and NEC code violation. A licensed commercial electrician can assess the circuit load and provide the right solution — whether that is a dedicated circuit, a panel upgrade, or a load redistribution.

Warning Sign 2: Flickering or Dimming Lights

If your commercial lighting flickers or dims when large equipment starts up — when your HVAC kicks on, when a commercial refrigerator compressor cycles, or when you run high-draw machinery — your electrical system is struggling with load management. This is a symptom of an undersized service, inadequate panel capacity, or poor circuit layout. It is also a sign that your electrical system may not be able to handle additional load without a professional upgrade.

Warning Sign 3: Burning Smell or Unusual Odors Near Electrical Equipment

A burning smell near an outlet, panel, or piece of electrical equipment is an emergency. Do not ignore it, assume it will resolve on its own, or postpone having it evaluated. Burning smells indicate overheating — which is one of the primary precursors to electrical fires. Contact Zimmerman Electric immediately if you detect any burning odor from electrical components in your facility.

Warning Sign 4: Outlets or Switches That Are Warm to the Touch

Outlets and switches should never be warm. If any device or cover plate in your facility feels warm or hot to the touch, this indicates that the circuit is overloaded, the connections are loose, or the device itself is failing. This is a safety hazard that requires immediate professional assessment.

Warning Sign 5: Outdated Panel or Fuse Box

If your commercial facility is operating on a fuse box or an electrical panel that has not been upgraded in the past 20–25 years, it almost certainly cannot safely support your current electrical load — let alone any future additions. Commercial electrical panels in Indianapolis must be assessed before any significant equipment addition, renovation, or tenant improvement buildout.

Warning Sign 6: Non-GFCI Outlets in Required Locations

GFCI (Ground Fault Circuit Interrupter) protection is required by the NEC in any commercial location near water — kitchens, bathrooms, break rooms, janitorial areas, and exterior outlets. If your facility has standard outlets in any of these locations, you have a code violation that exposes your business to liability and can complicate your insurance coverage.

Warning Sign 7: Power Quality Issues — Voltage Fluctuations, Equipment Damage

If your facility experiences unexplained equipment failures, shortened electronics lifespan, or visible voltage fluctuations, your electrical system may have power quality issues. Common causes include aging wiring, inadequate grounding, failing connections, or utility-side issues that a commercial electrician can help identify and address with the right protection equipment.

Warning Sign 8: Insufficient Outlets for Current Operations

Extension cords and power strips are not long-term solutions for inadequate outlet coverage. In a commercial environment, they are frequently a code violation, always a trip hazard, and consistently a sign that your electrical infrastructure has not kept pace with your operational needs. If your team is regularly using extension cords as a permanent solution, it is time to add circuits and outlets.

Warning Sign 9: Upcoming Renovation, Buildout, or Equipment Addition

This is not a warning sign of an existing problem — it is a proactive signal that you need a commercial electrician before you proceed. Any significant renovation, tenant improvement buildout, new equipment installation, or operational expansion requires a professional electrical assessment first. Adding high-draw equipment without confirming panel capacity is a common and costly mistake.

Warning Sign 10: Your Business Has Never Had a Professional Electrical Inspection

If your Indianapolis commercial property has never had a comprehensive electrical safety inspection by a licensed commercial electrician, schedule one. Period. Electrical code violations, overloaded circuits, deteriorating connections, and inadequate grounding develop silently over time. A professional inspection protects your business, your employees, your customers, and your insurance coverage.

How to Choose the Right Commercial Electrician in Indianapolis

Choosing the right commercial electrical contractor is one of the most consequential vendor decisions an Indianapolis business owner or facility manager can make. The wrong contractor can leave you with code violations, failed inspections, operational disruptions, and significant rework costs. The right contractor gets it done correctly, on time, and with documentation that protects your business long-term.

Here is a step-by-step guide to evaluating and selecting a commercial electrician in Indianapolis.

Step 1: Verify Indiana Electrical Licensing

In Indiana, commercial electrical work must be performed by a licensed electrician. All electrical contractors performing commercial work in Indianapolis and Marion County must hold appropriate licensing through the State of Indiana — and all work must be permitted and inspected per local jurisdiction requirements.

Before hiring any commercial electrician, ask:

  • Do you hold a current Indiana electrical contractor license?
  • Will you obtain all required permits for this project?
  • Who will be on-site supervising the work — a licensed journeyman or master electrician?

Unlicensed or unpermitted commercial electrical work creates serious legal and financial risk for your business — including voided insurance coverage, failed occupancy inspections, and liability exposure.

Step 2: Confirm Insurance Coverage for Commercial Work

Commercial electrical projects require higher liability limits than residential work. Verify that your prospective contractor carries:

  • General liability insurance — minimum $1M per occurrence for most commercial projects
  • Workers' compensation insurance covering all employees on your project
  • Appropriate commercial vehicle coverage

Always request a certificate of insurance before work begins. Never accept a contractor's verbal assurance of coverage.

Step 3: Evaluate Genuine Commercial Experience

Not every electrician who offers commercial services has meaningful commercial experience. Ask directly:

  • What percentage of your current work is commercial versus residential?
  • What types of commercial properties have you worked in?
  • Have you worked in facilities similar to mine in terms of industry and scope?
  • Can you provide commercial references I can call?

An experienced commercial electrician will answer these questions confidently and specifically. Vague answers or an inability to provide commercial references are red flags.

Step 4: Request a Written, Itemized Estimate

Any reputable commercial electrician will provide a written estimate before work begins. That estimate should include:

  • Scope of work described in specific detail — not vague general terms
  • Material specifications — brand, gauge, conduit type, panel brand
  • Labor costs broken out by phase if it is a multi-phase project
  • Permit fees included or clearly identified as separate
  • Timeline with defined milestones
  • Payment terms

Never proceed with commercial electrical work based on a verbal estimate. Written documentation protects both parties and establishes a clear baseline for scope management.

Step 5: Assess Communication and Scheduling Practices

In commercial electrical work, scheduling and communication are not secondary concerns — they are core service deliverables. Ask:

  • How will you communicate with me throughout the project?
  • Who is my primary point of contact?
  • Can you schedule work during off-hours or weekends to minimize disruption to our operations?
  • How do you handle scope changes — will I receive a written change order before any additional work proceeds?

The ability to schedule around your business operations is a critical differentiator for commercial clients. A contractor who cannot accommodate off-hours work for an operational facility is not the right fit for most Indianapolis businesses.

Step 6: Confirm Code Compliance and Permit Management

All commercial electrical work in Indianapolis requires permits. The contractor should handle the entire permitting process — including application, scheduling inspections, and passing all required inspections with documentation. Never hire a commercial electrician who suggests skipping permits to save time or money. Unpermitted commercial electrical work is a liability that can follow your property for years.

✅ What a Good Commercial Electrician Provides

🚩 Red Flags to Watch For

✔ Current Indiana electrical contractor license

✔ General liability + workers' comp insurance

✔ Verifiable commercial project references

✔ Written, itemized estimate before work begins

✔ Full permit management start to finish

✔ Off-hours scheduling to minimize disruption

✔ Written change orders for any scope changes

✔ Code-compliant work that passes inspection

✔ Post-project documentation and walkthrough

✔ Responsive communication throughout

✔ Cannot confirm Indiana licensing

✔ Asks you to pull your own permits

✔ Only verbal estimates — no written quote

✔ Significantly lower bid with no explanation

✔ No commercial references available

✔ Subcontracts work to unlicensed crews

✔ Pushes to start before permit is issued

✔ Cannot provide insurance certificate

✔ No written change order process

✔ Unresponsive to calls or messages

Commercial Electrical Service Costs in Indianapolis: What to Expect

One of the most common questions Indianapolis business owners ask when planning commercial electrical projects is: how much does commercial electrical installation cost? The honest answer is that commercial electrical costs vary significantly based on project scope, facility size, system complexity, and the specific services required.

What we can provide here are realistic ranges and the key factors that drive cost — so you can budget intelligently and evaluate quotes effectively.

Key Cost Factors for Commercial Electrical Projects

  • A single-circuit repair costs fundamentally differently than a full LED retrofit across a 50,000 sq ft warehouse or a complete tenant improvement buildout. The broader the scope, the more important a detailed written estimate becomes.Project Scope & Complexity
  • A 200-amp commercial service costs significantly less than a 400-amp or 800-amp service. Panel upgrades for growing businesses vary based on current infrastructure and the target service capacity.Service Size & Panel Configuration
  • Commercial code generally requires conduit (EMT or rigid) rather than the cable-in-wall methods used in residential work. Conduit installation adds labor time but significantly improves system durability, accessibility, and safety.Conduit Type & Wiring Method
  • Commercial permits in Indianapolis and Marion County are based on project valuation and type. Budget for permit fees as a line item in any commercial electrical project.Permitting & Inspection Fees
  • Off-hours, weekend, or phased scheduling to minimize operational disruption may affect total project cost. It is worth the investment to protect your business operations.Scheduling Requirements
  • Copper wire prices fluctuate. Panel and equipment costs vary by brand and specification. A written estimate locks in pricing at the time of the quote.Material Pricing

Approximate Cost Ranges for Common Indianapolis Commercial Electrical Services

Service

Typical Range

Key Variables

Commercial panel upgrade (200A to 400A)

$3,500–$8,000+

Service size, utility coordination

Tenant improvement electrical buildout

$8,000–$50,000+

Sq footage, systems, finishes

LED lighting retrofit (per 1,000 sq ft)

$1,500–$5,000

Fixture count, ceiling height

EV charger installation (commercial L2)

$1,200–$3,500/station

Panel capacity, circuit distance

Security camera system wiring

$1,500–$6,000

Camera count, conduit routing

Emergency generator installation

$8,000–$30,000+

Generator size, transfer switch type

Sub-panel installation

$1,800–$5,000

Panel size, location, conduit run

Commercial kitchen circuit installation

$2,500–$8,000+

Equipment count, voltage requirements

Access control system wiring

$1,500–$5,000

Door count, system complexity

Commercial electrical safety inspection

$300–$800

Facility size, system complexity

Important note: These are representative ranges for central Indiana. Actual project costs depend on a site visit and assessment. Zimmerman Electric provides free, written estimates for all commercial projects — so you know exactly what you are paying before any work begins.

How Zimmerman Electric Handles Commercial Projects: Our Process

Every commercial electrical project Zimmerman Electric undertakes follows a structured, transparent process designed to keep your business informed, minimize disruption, and deliver code-compliant results the first time.

  • Step 1 — Contact Us for a Free Commercial Estimate

Call us at 317-939-9197 or submit an estimate request online. Describe your project and we will schedule a site visit at a time that works for your business — including early morning or after-hours appointments if needed to minimize operational impact.

  • Step 2 — On-Site Assessment & Written Quote

We visit your facility, evaluate your current electrical system, and discuss your project requirements in detail. You receive a clear, itemized written estimate before any commitment is made. We explain our approach, walk you through the scope, and answer every question you have.

  • Step 3 — Permit Application & Project Scheduling

We handle all required permitting with the appropriate local authority — Indianapolis/Marion County, or the relevant suburban jurisdiction. We schedule the work to minimize disruption to your operations, including phased installations for large projects that cannot afford full facility downtime.

  • Step 4 — Professional Installation or Service

Our licensed commercial electricians arrive on time, work cleanly and efficiently, and communicate with your team throughout the project. All work is performed to code, to commercial specification, and to a professional standard that reflects the trust you have placed in us.

  • Step 5 — Inspection, Documentation & Final Walkthrough

We schedule and pass all required inspections. You receive complete documentation of the work performed — including the permit and inspection approval — for your records, your insurance coverage, and any future property transactions. We walk through the completed project with you to confirm everything meets your expectations.

Why Indianapolis Businesses Choose Zimmerman Electric

There are a lot of commercial electricians in Indianapolis. Here is what differentiates Zimmerman Electric — and why business owners and facility managers across Central Indiana call us back project after project.Licensed & Insured for Commercial Work

All work is performed by licensed Indiana electricians. We carry full general liability and workers' compensation insurance for commercial projects of every scale. You will receive a certificate of insurance before work begins — no exceptions.

Family-Owned, Owner-Accountable

Zimmerman Electric is owned and operated by Zach and Kara Zimmerman. This is not a franchise. There is no call center between you and the people responsible for your project. When you call Zimmerman Electric, you are speaking with a team that personally stands behind every job completed under their name — and that is a fundamentally different accountability than you get from a large regional contractor.

No Subcontracting

Zimmerman Electric does not subcontract commercial projects to other crews. The team you hire is the team that shows up, performs the work, and signs off on the documentation. This is not standard in the commercial electrical industry — but it is how we operate, because we believe accountability requires continuity.

Scheduling Around Your Business Operations

Operational disruption costs money. We understand this, and we build scheduling around your business needs — not around our convenience. Early morning starts, after-hours work, weekend installations, and phased project scheduling are all available for commercial clients who cannot afford extended facility downtime.

Code-Compliant, Permitted, Documented

Every commercial project Zimmerman Electric completes meets or exceeds current NEC and Indiana electrical code standards. All required work is permitted, inspected, and documented. You will never be asked to accept unpermitted work — and you will always receive complete documentation for your records.

Energy Efficiency Expertise

We help Indianapolis businesses reduce operating costs through LED lighting upgrades, system modernization, and energy management recommendations that pay for themselves over time. If there is a meaningful energy efficiency opportunity in your facility, we will identify it and help you understand the ROI before you invest.

4.8-Star Google Rating | BBB Accredited | Home Artisan Network Member

Our reputation is built on the experience of real Indianapolis customers — business owners, facility managers, and property managers who have worked with us and would hire us again. Our 4.8-star Google rating, BBB Accreditation, and Home Artisan Network membership reflect a consistent standard of quality and professionalism across every commercial project we complete.

 

Your Commercial Electrical System Is the Foundation of Your Business Operations

Every hour your facility operates, your electrical system is working. Every piece of equipment, every light fixture, every safety system, every customer-facing technology depends on a commercial electrical infrastructure that is properly installed, correctly sized, and consistently maintained.

The commercial electrical needs of Indianapolis businesses are diverse — from the restaurant on Mass Ave that needs new kitchen circuits to the Fishers tech company expanding into a new office suite to the Plainfield warehouse adding EV charging infrastructure for an electric fleet. Each has different requirements. Each deserves a licensed commercial electrician who understands those requirements, communicates clearly, and delivers code-compliant work the first time.

That is what Zimmerman Electric has built its commercial practice around: honest assessment, transparent pricing, professional installation, and the kind of owner-level accountability that only comes from a family-owned business that stands behind every project it completes.

Whether your project is a single repair, a full LED lighting upgrade, a panel upgrade to support new equipment, or a complete electrical buildout for a new commercial space — Zimmerman Electric is ready to help.

Make Your Home Safer and Ready for What’s Next

Zimmerman Electric specializes in residential electrical upgrades across Marion, Boone, Hamilton, Hendricks, Morgan, Johnson, Shelby, and Hancock counties. Whether you’re updating an older home or preparing for future technologies, our licensed electricians focus on practical improvements that stand up to real-world use and local code requirements.

Contact us today to schedule a free estimate and take the next step toward a safer, smarter, and more efficient home.

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Get a professional assesment and a clear, no-obligation quote from our expert Indianapolis team.

Frequently Asked Questions

What types of commercial properties do you work on?

We work with a wide range of commercial property types including office buildings, restaurants, retail stores, warehouses, industrial facilities, medical offices, hotels, schools, and multi-tenant commercial properties. If you have a commercial electrical need, call us , we're happy to discuss your specific situation 

 Yes. All commercial electrical work that requires a permit in Indianapolis and the surrounding jurisdictions will be handled by our team from start to finish. We submit the application, schedule the inspection, and ensure all work passes inspection. You don't need to coordinate with the city or county yourself. 

 Absolutely. We understand that downtime costs money. For most commercial projects, we can schedule work during off-hours, early mornings, evenings, or weekends to minimize disruption to your operations. We discuss scheduling requirements during the estimate process and work around your needs. 

 Yes. We understand that commercial electrical failures can't always wait for normal business hours. Contact us at 317-939-9197 for emergency service availability and we will work to get your business back up and running as quickly as possible. 

 Yes. We have the team, licensing, and experience to manage commercial projects of varying scale , from a single-circuit repair to a complete tenant improvement buildout, LED lighting retrofit across a large facility, or a full electrical system for new commercial construction. 

 Commercial electrical work typically involves higher voltages, three-phase power systems, more complex distribution panels, stricter code requirements, and different permitting processes than residential work. Commercial jobs also require coordination around business operations and timelines that don't exist in a typical home project. Our team is experienced in both environments. 

 Yes. If you're interested in upgrading your commercial lighting to LED, we can conduct an assessment of your current system and provide a proposal showing the cost of the upgrade, the estimated energy savings, and the typical payback period. Many Indianapolis businesses find that LED upgrades pay for themselves within two to three years through reduced energy and maintenance costs. 

 Call us at 317-939-9197 or submit a request on our website. We'll schedule a site visit at your convenience, assess your needs, and provide a clear written estimate with no obligation to proceed. 

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