Commercial Electrical Repairs
Reliable commercial electrical services designed to keep operations running smoothly for businesses of all types. Our experienced commercial electricians deliver quality electrical work – from routine electrical maintenance and inspections to complex installation projects and electrical infrastructure upgrades.
5 Highlights on Commercial Electrical Repairs
- Fast troubleshooting on live systems. Kochs Electric’s experienced technicians use calibrated multimeters, oscilloscopes, and clamp-style ammeters to efficiently pinpoint faults in energized three-phase and single-phase systems – minimizing downtime and keeping your operations running smoothly
- Full panel board and load center service. We inspect, test, and replace circuit breakers, bus bars, and fusible disconnects to restore safe, code-compliant power distribution across your facilities. Our electrical panel upgrade and panel upgrade services ensure your electrical infrastructure meets current safety standards.
- Wiring and conduit repair. Our crew repairs damaged, corroded, or exposed conductors, re-pulls cable through existing conduit runs, and terminates splices to NEC and NFPA standards. We also handle control wiring, outlets, and electrical service upgrades across all types of commercial environments.
- Transformer and switchgear diagnostics. We measure voltage, current, impedance, and power factor to identify overloaded or defective transformers and switchgear components before they cause arc flash events. Addressing these issues early helps reduce energy consumption and improve energy efficiency – lowering operating costs for your business.
- Ground fault and short circuit correction. We trace open and shorted circuits, verify grounding and bonding continuity, and restore proper neutral and hot wire integrity throughout your commercial electrical system – eliminating electrical hazards and ensuring all electrical needs are met efficiently.
Why Choose Our Commercial Electrical Repairs
Kochs Electric brings qualified, licensed electricians to every commercial electrical repair job. Our experienced commercial electricians hold current certifications and train regularly on NEC code updates, OSHA arc flash safety protocols, and NFPA 70E compliance – ensuring quality electrical work and full safety compliance on every project. That means every repair we complete meets or exceeds the standards your facility’s insurance carrier and local inspection authority require.
We work on commercial and industrial systems across a wide voltage range, from low-voltage branch circuits to medium-voltage switchgear and transformer installations. Our dedicated team is fully equipped to handle complex electrical work across diverse environments – from office buildings and retail facilities to warehouse lighting systems, industrial automation controls, and tenant improvement projects. We carry the test equipment needed to measure harmonic distortion, EMI interference, and transient surges that standard contractors miss.
Kochs Electric doesn’t subcontract your repair to an unfamiliar crew. The same trusted technicians who assess your system complete the work. We understand that operational continuity matters, and our project management approach keeps electrical work on schedule with minimal disruption to your business. We document every repair with labeled, tagged components and provide a written inspection report you can keep on file.
Our pricing is straightforward. We give you a clear scope of work before we start, and we stand behind every repair with a workmanship guarantee – helping you reduce costs and avoid unexpected expenses. If a repaired circuit, connection, or component fails within our warranty period, we come back and fix it at no additional charge. Customer satisfaction drives everything we do. Contact us today – that’s the Kochs Electric commitment to professional commercial electrical services designed for businesses that depend on reliable power.
Signs You Need Commercial Electrical Repairs
Tripped or blown overcurrent protection: A circuit breaker that trips repeatedly or a fuse that blows more than once signals an overloaded circuit, a shorted conductor, or a defective breaker. Resetting the breaker without diagnosing the root cause puts your equipment and your building at risk of an arc flash or fire.
Flickering or dimming lights under load: When lighting dims as motors start or heavy equipment energizes, your facility likely has a voltage drop problem. Loose terminations, undersized conductors, or a failing transformer can all cause this. Left unrepaired, the condition stresses connected equipment and shortens its service life.
Burning smell or visible scorching near panel boards: Scorched insulation, discolored bus bars, or a burning odor near your load center or switchgear indicates a high-resistance connection or an overloaded conductor. These are pre-failure conditions that require immediate inspection and repair.
Ground fault indicators or GFCI trips: Repeated ground fault circuit interrupter trips in commercial kitchens, bathrooms, or outdoor circuits point to damaged wiring, moisture intrusion, or a faulty device. A ground fault left unaddressed can deliver a lethal shock to personnel working near the affected circuit.
Voltage imbalance across three-phase equipment: Motors, compressors, and HVAC equipment running on an unbalanced three-phase supply draw excess current on the low-voltage phase. This causes overheating, reduced efficiency, and premature motor failure. Our technicians measure phase-to-phase voltage and current to identify the source of the imbalance and correct it at the panel board or transformer level.
High energy consumption or rising operating costs: Outdated commercial lighting, inefficient electrical systems, and aging electrical infrastructure can drive up energy costs without warning. LED retrofits and commercial lighting upgrades are proven to reduce energy consumption significantly. Businesses that invest in LED lighting, energy efficiency improvements, and electrical service upgrades can improve energy performance and reduce operating costs – all while ensuring full safety compliance and meeting current code requirements. Our installation services support everything from LED retrofits to full electrical infrastructure build-out projects.
Our Commercial Electrical Repair Process
Step 1 — Site assessment and de-energizing. We arrive, review your system’s single-line diagram if available, and identify the affected circuits. Our team is fully equipped to conduct thorough electrical troubleshooting and inspections across all types of commercial facilities. Where safe and practical, we de-energize the section under repair and verify it’s dead with a calibrated voltage tester before touching any conductors.
Step 2 — Fault diagnosis. Our technicians use multimeters, megohmmeters, and oscilloscopes to measure voltage, current, resistance, and impedance. We test for ground faults, short circuits, open conductors, and overcurrent conditions to confirm the exact failure point.
Step 3 — Repair and replacement. We replace defective circuit breakers, contactors, relays, fuses, or damaged wiring. We splice and terminate conductors to torque specifications, install new conduit sections where needed, and secure all components to code. For larger projects, our installation services cover everything from outlet and control wiring installation to full electrical service upgrades and retrofits.
Step 4 — Testing and verification. After repairs, we re-energize the circuit and measure voltage, current draw, and power factor under load. We verify grounding and bonding continuity and confirm the system operates within rated parameters.
Step 5 — Documentation and labeling. We label all repaired panels, tag replaced components, and provide a written repair report. Your facility records stay current and inspection-ready – giving your management team the documentation needed to support ongoing electrical maintenance, maintenance services scheduling, and future safety compliance reviews.
Brands We Use
Kochs Electric sources components from manufacturers with proven performance records in commercial and industrial electrical systems:
- Square D
- Eaton
- Siemens
- ABB
- Leviton
- Hubbell
- Fluke
- Southwire
- Panduit
- Ideal Industries
Your safety and your system’s long-term reliability depend on rated, compliant materials installed by licensed professionals.
Other Services
| Commercial electrical repairs | Commercial electrical repair service | Circuit breaker repair, panel board troubleshooting |
| Commercial electrician | Licensed commercial electrician | NEC compliant electrical repair, three-phase repair |
| Electrical fault repair | Electrical system repair | Ground fault correction, short circuit repair |
| Panel board repair | Load center repair | Bus bar replacement, overcurrent protection repair |
| Commercial wiring repair | Commercial rewiring service | Conduit repair, conductor replacement, splice repair |
| Electrical maintenance | Maintenance services | Electrical troubleshooting, services support, electrical needs |
FAQs About Commercial Electrical Repairs
What is a commercial electrical repair?
A commercial electrical repair is any corrective work performed on the wiring, circuit breakers, panel boards, switchgear, transformers, or connected devices in a business or industrial facility. It covers everything from replacing a blown fuse to tracing a ground fault across a multi-circuit distribution system.
When should I call for commercial electrical repairs?
Call when you notice tripped breakers that won’t hold, flickering lights, burning smells near your panel, GFCI trips that repeat, or equipment running hot without explanation. Don’t wait. These symptoms indicate active faults that can escalate to arc flash events, equipment damage, or fire.
Why do commercial electrical repairs cost more than residential work?
Commercial systems operate at higher voltages, carry greater amperage, and use three-phase power configurations that require specialized test equipment and training. The components — switchgear, contactors, bus bars, and medium-voltage transformers — cost more than residential parts, and the safety requirements under OSHA and NFPA 70E are stricter.
How does Kochs Electric troubleshoot a commercial electrical fault?
We measure voltage, current, resistance, and impedance at multiple points in the circuit using calibrated multimeters and megohmmeters. We test for open conductors, shorted wiring, ground faults, and overcurrent conditions before we replace any component. That approach finds the actual fault instead of swapping parts until the problem disappears.
Can you repair energized commercial electrical systems?
We can perform diagnostic work on energized systems when de-energizing isn’t practical, following NFPA 70E arc flash safety procedures with rated PPE. All repair work happens on de-energized, locked-out circuits to protect our technicians and your personnel.
Does Kochs Electric guarantee its commercial electrical repairs?
Yes. Every repair comes with a written workmanship guarantee. If a repaired connection, replaced component, or corrected circuit fails within the warranty period, we return and fix it at no cost to you.