Commercial Electrical Wiring & Tenant Buildouts
Kochs Electric wires commercial spaces from bare shell to fully operational – on schedule, to code, and built to last. Our professional team delivers dependable electrical services designed to support business operations and ensure reliable power distribution for the long term.
5 Highlights on Commercial Electrical Wiring & Tenant Buildouts
- Full scope, single contractor. Kochs Electric handles everything from rough-in through final inspection – conduit installation, feeder runs, branch circuit wiring, panel terminations, and trim-out – so you’re not coordinating between multiple subs.
- Tenant buildout specialists. We wire lease spaces, demising walls, and tenant improvements across office, retail, and light industrial occupancies, working directly with general contractors, landlords, and tenants.
- Code-compliant work, every time. Every installation meets NEC requirements and local building department standards, with permitted rough-in inspections and final inspections completed before energizing.
- Three-phase and single-phase systems. We install and terminate switchgear, subpanels, distribution boards, and branch circuits for both single-phase and three-phase commercial loads.
- Coordinated scheduling. Our foremen coordinate directly with GCs, inspectors, and utility companies to keep rough-in, above-ceiling, and trim-out phases on track with the overall construction schedule.
Why Choose Our Commercial Electrical Wiring & Tenant Buildouts
Commercial electrical wiring is not a place to cut corners. Kochs Electric brings licensed master electricians and experienced journeymen to every professional tenant improvement project, from core-and-shell rough-in through final trim-out and commissioning. Our team provides dependable commercial electrical services designed to meet code requirements and support daily operations from day one.
We pull permits, schedule inspections, and stay current with NEC codes and local amendments. Our estimators produce detailed load schedules, panel schedules, and one-line diagrams before a single conduit gets bent. That careful planning keeps change orders low, timelines tight, and the electrical infrastructure designed to meet both current demands and future growth.
Our crews work in occupied and partially occupied commercial buildings. We carefully plan work sequences to minimize disruption to business operations, coordinate above-ceiling access with ceiling grid contractors, and de-energize circuits safely without affecting neighboring lease spaces or daily operations.
Kochs Electric uses quality materials – THHN wire, EMT and rigid conduit, listed junction boxes, and torque-verified terminations throughout. Every electrical panel gets labeled, every circuit gets tested, and every ground and bonding connection gets verified before we call for inspection. This ensures improved safety and consistent system performance across every installation.
We’ve completed tenant buildouts for office suites, medical offices, retail storefronts, server rooms, warehouses, and light industrial facilities. That extensive experience means we recognize load requirements, dedicated circuit needs, and GFCI and AFCI protection requirements specific to each type of commercial environment.
Signs You Need Commercial Electrical Wiring & Tenant Buildouts
1. You’re building out a new lease space from core-and-shell: A raw lease space has no branch circuits, no outlets, no lighting systems, and no subpanel. Commercial electrical wiring starts with carefully planning interior layouts, laying out the panel schedule and lighting design, and roughing in conduit and wire before the walls close. Proper power distribution and lighting placement must be designed from the start to support tenant operations. Without a licensed electrical contractor pulling permits and scheduling rough-in inspections, the building department won’t approve occupancy.
2. Your existing tenant space needs a full retrofit or upgrade: Older commercial spaces often have undersized panels, unbalanced phases, outdated wiring methods like BX cable or knob-and-tube, and no dedicated circuits for modern technology and equipment loads. A retrofit involves demo of old wiring, new conduit runs, subpanel replacement or upgrade, and re-termination of all branch circuits to current NEC standards. Electrical upgrades at this stage can include LED lighting upgrades and automated lighting controls that reduce energy consumption and lower operating costs.
3. You’re adding HVAC units, RTUs, or AHUs to a commercial space: Every rooftop unit, air handler, and VFD-driven motor needs a dedicated feeder, a properly sized disconnect, and a circuit breaker matched to the equipment nameplate. Properly wired circuits support reliable equipment performance and help prevent unplanned downtime. Kochs Electric coordinates with mechanical contractors to wire and connect HVAC equipment correctly the first time.
4. Your data room or server room needs dedicated, conditioned circuits: Server rooms require dedicated branch circuits, isolated ground receptacles, and sometimes a separate subpanel or distribution board. Improper wiring in these spaces causes equipment failures and data loss. We install and label every circuit, verify load balance, and test each outlet before equipment goes live. Scalable electrical systems with proper load management improve reliability and support future growth as your technology integration needs expand.
5. You’re failing electrical inspections or getting red-tagged: Failed rough-in or final inspections mean missing permits, improper conduit fill, incorrect wire gauge, missing bonding jumpers, or ungrounded equipment – all of which create safety hazards and put property value and business continuity at risk. Kochs Electric troubleshoots the deficiencies, corrects the installation, and re-schedules the inspection with the building department to restore improved safety and compliance.
Our Commercial Electrical Wiring & Tenant Buildout Process
Step 1 — Estimate and Blueprint Review Our estimator reviews the architectural and electrical blueprints, one-line diagrams, and load schedules. We calculate circuit counts, feeder sizes, conduit quantities, and panel configurations based on project size before submitting a bid. This includes reviewing the lighting design and interior layouts to plan an efficient design installation that supports commercial operations.
Step 2 — Permit Application We submit permit applications to the local building department, including load calculations and panel schedules. Work doesn’t start until the permit is issued and posted on site.
Step 3 — Rough-In Our journeymen install conduit – EMT, rigid, PVC, or flex – route feeders and branch circuits to deliver proper power distribution, mount junction boxes and outlet boxes, and pull THHN wire through the raceway system efficiently. All work stays above the ceiling grid and inside walls before inspection.
Step 4 — Rough-In Inspection We schedule the rough-in inspection with the building department. The inspector verifies conduit fill, box fill, grounding, bonding, and code compliance before walls close and ceilings go in, ensuring the electrical systems meet all local codes.
Step 5 — Trim-Out and Terminations After rough-in approval, we complete the lighting installation – including LED lighting fixtures, lighting controls, and occupancy sensors – and install all receptacles, switches, dimmers, exit signs, and emergency lights. We terminate all wiring at the electrical panel, torque every lug to spec, and label every circuit.
Step 6 — Testing and Final Inspection We test every circuit with a multimeter and voltage tester, verify GFCI and AFCI protection, and confirm load balance across phases. We schedule the final inspection, then energize and commission the system after approval – ensuring full functionality and delivering consistent, reliable electrical service from day one.
Brands We Use
Kochs Electric installs materials from manufacturers with proven performance records in commercial electrical wiring and tenant buildout applications.
- Square D
- Eaton
- Leviton
- Lutron
- Hubbell
- Southwire
- Carlon
- Allied Tube & Conduit
- Lithonia Lighting
- Ideal Industries
Using quality components from recognized manufacturers keeps your installation safe, inspectable, and built to perform for the life of the building.
Other Services
| Commercial electrical wiring | Commercial wiring services | Branch circuit installation, panel wiring, conduit rough-in |
| Tenant buildout electrician | Tenant improvement electrical | Lease space wiring, demising wall rough-in, above-ceiling conduit |
| Commercial electrical contractor | Licensed commercial electrician | Master electrician, journeyman, permitted electrical work |
| Commercial panel installation | Subpanel installation commercial | Load schedule, panel schedule, three-phase wiring |
| Commercial electrical rough-in | Electrical rough-in inspection | NEC compliance, building department permit, final inspection |
FAQs About Commercial Electrical Wiring & Tenant Buildouts
What is commercial electrical wiring?
Commercial electrical wiring covers the installation of conduit, feeders, branch circuits, panels, receptacles, switches, and lighting systems in commercial buildings – offices, retail spaces, medical facilities, and light industrial occupancies. It differs from residential wiring in load requirements, wiring methods, and code standards. A properly designed electrical infrastructure provides reliable power distribution and supports the daily operations of commercial businesses.
What does a tenant buildout include electrically?
A professional tenant buildout typically includes a new subpanel or panel extension, branch circuit rough-in, above-ceiling conduit and wire runs, outlet and switch box installation, LED lighting installation with lighting controls, GFCI and AFCI protection, and final trim-out with all devices and covers installed. The lighting design is carefully planned to provide balanced illumination and improve visibility throughout the space.
How long does commercial electrical wiring take?
Timeline depends on project size, square footage, circuit count, and inspection scheduling. A standard 2,000 to 5,000 square foot office buildout typically runs two to four weeks from permit issuance through final inspection, assuming no major change orders.
Does Kochs Electric pull permits for tenant buildouts?
Yes. We pull all required permits, submit load calculations and panel schedules to the building department, and schedule both rough-in and final inspections. Unpermitted electrical work creates liability for tenants, landlords, and commercial property owners and won’t pass a certificate of occupancy inspection.
Can you wire a commercial space while it’s partially occupied?
Yes. Our crews sequence work to minimize downtime and disruption to daily business operations, de-energize only the circuits being modified, and coordinate above-ceiling access around active tenants and other trades. Maintaining consistent service ensures tenant operations continue without interruption.
How do you size a panel for a commercial tenant space?
We calculate the total connected load from the load schedule – lighting, receptacles, HVAC, dedicated equipment – then size the electrical panel and feeder to handle that load with capacity for future growth. Scalable panel design supports business growth and ensures the electrical infrastructure can meet increased demands as operations expand. NEC Article 220 governs commercial load calculations.
What’s the difference between a rough-in inspection and a final inspection?
A rough-in inspection happens before walls close and ceilings go in. The inspector checks conduit, boxes, wire fill, grounding, and bonding to ensure the electrical systems meet all applicable codes. A final inspection happens after trim-out, with all devices, lighting installations, and panel terminations complete and the system ready to energize – ensuring improved safety and reliable functionality.