Shop & Garage Electrical in Twin Falls, Idaho — Detached Garages, Pole Barns & Workshops
A good shop starts with good power: enough circuits, the right 240V outlets, bright lighting and a feeder sized for the distance. We design and install the electrical for new and existing garages, shops and pole barns across Twin Falls County.
What your shop needs from its electrical system
Power to the building
A feeder from your house panel — or a separate service from the utility — sized for the total load and the distance. See new electrical service.
Subpanel at the shop
Your own breakers at the shop, with separate neutral and ground bars and grounding at the building. See subpanel installation.
240V circuits
Welders, air compressors, table saws, EV chargers and heaters each get a dedicated circuit with the right breaker and receptacle.
Outlets where you work
Convenience outlets along benches and walls, GFCI-protected as required for garages and accessory buildings under the 2023 NEC.
Bright, even lighting
LED shop lighting laid out to remove shadows, with switching that makes sense. See lighting installation.
Heat, fans and future loads
Unit heaters, exhaust fans and room for a future EV charger or equipment add-on.
Design, permit, trench, install, inspect
Load plan
We list your tools and future plans, run the load calculation and recommend a feeder and subpanel size.
Permit
We pull the permit with the permitting authority that covers your property and schedule inspections.
Trench and install
We run conduit and feeder, set the subpanel, ground the building and wire circuits and lighting.
Inspection and walk-through
After the inspection passes we walk you through the panel and label every circuit.
Shop wiring mistakes we are asked to fix
- Extension cords or undersized wire running from the house to the shop.
- Neutrals and grounds tied together in a subpanel.
- Outlets without GFCI protection where it is required.
- Too few circuits, so tools trip breakers at the same time.
- Unpermitted work that surfaces at resale or with an insurance claim — see electrical permits.
Farm shops and machine sheds follow the same principles — see our agricultural electrical page.
Frequently asked questions
Can I power my shop from my house panel?
Often yes, with a properly sized feeder to a subpanel at the shop. A load calculation tells us whether your house service can carry it; if not, a service upgrade or separate service is needed.
Do I need a permit for shop electrical?
Yes. New feeders, subpanels and circuits are permitted work, and the inspection protects your resale and insurance. We handle permits and inspections.
How deep do the trench and conduit go?
Burial depth depends on the wiring method and location under the NEC. We trench and install to code and the inspector verifies it.
What size feeder does a shop need?
That comes from the load calculation and the distance. Common starting points are 60A to 100A for a typical garage or shop and larger for big shops with welders, compressors and heat.
Can you also add an EV charger in the garage?
Yes — a Level 2 charger on its own circuit is common. See EV charger installation.
Related services & guides
Subpanel Installation
Licensed subpanel installation in Twin Falls, Idaho for garages, shops, additions and barns. Load calculation, permit and inspection handled.
Adding a subpanel →New Service & Power Pole
New electrical service, power pole and temporary power for Twin Falls County: meter base, panel, trenching and Idaho Power or MVEC coordination.
Installing a new electrical service →Lighting Installation
Indoor & outdoor lighting installation in Twin Falls, ID. LED retrofits, recessed lighting, ceiling fans & landscape lighting. Licensed. Get an estimate.
Indoor and outdoor lighting installation →Electrical Permits
Everything about electrical permits in Twin Falls, ID. What requires a permit, City Building Dept fees & process. Tervano Electric pulls permits on every job.
How electrical permits work →EV Charger Installation
Level 2 EV charger installation in Twin Falls, ID. 240V/48A EVSE for Tesla, Rivian & all EVs. Panel check included. Idaho Power rebates available. Permitted.
Level 2 EV charger wiring →Agricultural Electrician
Agricultural electrician for Twin Falls County farms. Center pivot wiring, well pump panels, dairy electrical & grain bin circuits. 24/7 ag emergency.
Agricultural electrician in Twin Falls →Residential Electrician
Licensed residential electrician in Twin Falls, ID. Panel upgrades, home rewiring, outlet install, EV chargers & 24/7 emergency. DOPL verified.
Residential electrician in Twin Falls →Ceiling Fan Installation
Ceiling fan installation in Twin Falls, Idaho: fan-rated boxes, new wiring, switches and remote controls installed safely by a licensed electrician.
Ceiling fan installation in Twin Falls →Get Your Twin Falls Shop Wired the Right Way
Feeder, subpanel, 240V circuits and lighting — permitted and inspected. Written estimate before work starts.
📞 Call (208) 719-5016 Get an Estimate