Commercial Electrician in Detroit, MI
A storefront on Livernois, a kitchen in Eastern Market, a shop in an old east-side plant. Commercial work in Detroit mostly means fitting new uses into old buildings, and finding out early what the existing service can carry.
Typical Detroit range: $95 to $150 per hour per electrician for service work. Build-outs and service upgrades are bid as fixed-price projects from drawings.
- Service
- Commercial electrical contracting
- Typical clients
- Retail, restaurants, offices, landlords
- Power
- Single-phase and three-phase
- Pricing
- Hourly service, fixed-price projects
What does a commercial electrician do?
The differences from house wiring are practical. Wire runs in conduit or metal-clad cable, not plastic-sheathed cable. Panels have schedules that have to match what is actually connected. Loads are larger and often three-phase. And the work is drawn, permitted and inspected against the use of the space, so a hair salon and a restaurant in identical rooms get different electrical plans.
- Tenant build-outs. Power, lighting and data pathways for a new retail, office or food-service space.
- Service and panel work. New or larger services, panel replacements, and feeders to subpanels on other floors.
- Equipment circuits. Ovens, hoods, walk-in coolers, compressors, lifts, welders and CNC machines, each wired to its nameplate.
- Lighting. LED retrofits, controls and occupancy sensors, exterior and parking lot fixtures, sign circuits.
- Life safety. Exit signs, battery emergency lights, and the power connections for fire alarm and hood suppression systems.
- Troubleshooting. Tripping breakers, dead circuits, overheated neutrals and failed ballasts or drivers.
What electrical work does a tenant build-out in Detroit need?
- Survey the existing service. Voltage, phase, amperage and how much is already used. This is the step that kills or saves a lease, so do it before signing.
- Lay out the loads. Every piece of equipment with its nameplate volts, amps and phase. Restaurants are driven by the kitchen, salons by dryers and water heaters, offices by cooling.
- Permit. The electrical contractor applies through BSEED. Larger jobs need stamped drawings.
- Rough-in. Conduit, boxes and wire go in while framing is open. The inspector sees it before drywall.
- Trim-out. Devices, fixtures, equipment connections, emergency lighting and a typed panel schedule.
- Final inspection. Required before the certificate of occupancy for the new use.
The most expensive surprise in an old Detroit storefront is a service that is too small or single-phase when the equipment is three-phase. Bringing in a new service involves DTE Energy's engineering group and can take months. Ask the landlord for the service size in writing.
How much does a commercial electrician cost in Detroit, MI?
Hourly rates say less than they seem to. A two-person crew with a lift and stocked conduit finishes in a morning what one person with a ladder takes two days to do. On service calls, ask for the crew size, any truck or trip charge and the minimum. On projects, compare bids by scope, not by the bottom line.
| Job | Typical range | What it covers |
|---|---|---|
| Service call, per electrician | $95 – $150 per hour | Troubleshooting and repair, materials extra |
| Dedicated equipment circuit | $500 – $2,000 | Breaker, conduit and wire to one machine or appliance |
| Exit and emergency lights | $150 – $350 each | Fixture, connection to the lighting circuit, test |
| LED retrofit, per fixture | $90 – $250 | New fixture or retrofit kit installed, old lamps recycled |
| Tenant build-out, electrical | $8 – $20 per sq ft | Power, lighting, panel, permit. Kitchens run higher |
| New 200-amp three-phase service | $6,000 – $15,000 | Service equipment, panel, grounding, permit, utility coordination |
Ranges are typical for the Detroit area, not quotes. The price for your building is confirmed before work starts. Utility charges for new or larger services are billed by DTE and are not included.
Does your building have single-phase or three-phase power?
Equipment is not interchangeable between them. A three-phase mixer will not run on a single-phase service without a converter, and a 240-volt oven on a 208-volt service heats about a quarter slower. Check every nameplate against the building before buying used equipment.
| Factor | Single-phase 120/240 V | Three-phase 120/208 V | Three-phase 277/480 V |
|---|---|---|---|
| Where you find it | Houses, small shops, old storefronts | Restaurants, offices, apartment buildings | Plants, warehouses, large retail |
| Hot conductors | Two | Three | Three |
| Large motors and compressors | Limited | Yes | Yes, most efficiently |
| Standard 120 V outlets | Direct | Direct | Through a transformer |
| Cost to add if missing | Not applicable | High, utility dependent | Highest |
| Best for | Offices, boutiques, studios | Kitchens and mixed-use buildings | Manufacturing and heavy equipment |
What should Detroit building owners know about electrical permits and inspections?
Much of the commercial stock here is 80 to 120 years old: brick storefronts on Michigan Avenue in Corktown and Vernor Highway in Southwest, the Avenue of Fashion on Livernois, sheds and warehouses around Eastern Market, former plants along the rail lines near I-94 and I-75. Typical findings are abandoned conduit that is still energized, panels with no schedule, cloth-insulated feeders, and three generations of tenant wiring layered above the ceiling.
Landlords have a separate list. Rental houses and apartments in Detroit must pass inspection for a certificate of compliance, and the electrical items are familiar: missing GFCI protection at kitchens and baths, open junction boxes, double-tapped breakers, ungrounded three-prong outlets and missing cover plates. These are usually a one-visit punch list priced per item.
Work in occupied buildings is scheduled around the business. Shutdowns for service work happen early in the morning, at night or on a closed day, agreed in advance with a set time for power to be back.
Related pages: electrical panel upgrade in Detroit for service sizing, EV charger installation for employee and fleet charging, and generator installation for transfer switches. All services are on the Detroit electrician home page.
What else do owners ask a commercial electrical contractor in Detroit?
Can commercial electrical work be done after hours?
Yes. Shutdowns, panel changes and work over sales floors or dining rooms are normally done before opening, overnight or on a closed day. After-hours labor is billed at a higher rate, which is usually cheaper than closing the business for a day.
Do you need three-phase power for a restaurant?
Not always. A small cafe with gas cooking can run on a 200-amp single-phase service. Three-phase becomes necessary with large hood fans, walk-in refrigeration, electric convection ovens or commercial dishwashers. The equipment nameplates decide it, so gather them before signing a lease.
Can you add EV chargers to a parking lot?
Yes, if the service has capacity. Several Level 2 chargers can share one feeder using load sharing, which splits the available current among the cars plugged in. Trenching across pavement is the main cost, so chargers go as close to the building as the layout allows.
Who pulls the electrical permit on a commercial job?
The licensed electrical contractor doing the work. On a build-out with a general contractor, the electrical permit is still a separate permit in the electrical contractor's name. Ask for the permit number and check that a final inspection is on record before you make the last payment.
Other electrical services in Detroit
Need an electrician in Detroit?
(313) 217-3165Say what is wrong, what part of the city you are in, and whether the power is on. You get a price range by phone before anyone is sent. Prefer not to talk? Text a photo of the panel or the problem.