From panel upgrades to EV charger installation to knowing when your home needs rewiring — everything Treasure Valley homeowners need to know about residential electrical work. Independent, honest, local.
Homeowner Guide
An honest, research-based guide for Ada County and Canyon County homeowners — covering costs, what to look for, questions to ask, and when to hire a professional.
Frequently tripping breakers, flickering lights, burning smell near the panel, a panel with fuses instead of breakers, a 100-amp panel in a home with modern appliances, or a home built before 1980 that has not had a panel upgrade are all indicators. A 200-amp panel is the current standard for most homes.
Almost all residential electrical work in Idaho requires a permit — panel upgrades, new circuits, EV charger installation, and rewiring projects. Unpermitted electrical work creates liability when you sell and may void your homeowner's insurance in the event of a fire. Always use a licensed electrician who pulls permits as part of the job.
A Level 2 EV charger (240V) is the practical standard for home charging — charges most EVs to full overnight. Installation requires a dedicated 240V circuit and typically a panel assessment to confirm capacity. Cost ranges from $500 to $1,800 depending on panel distance and existing capacity. Idaho Power offers rebates for qualified EV charger installations — ask your electrician.
Verify the Idaho electrical contractor license at ibol.idaho.gov before signing anything. Confirm liability insurance and workers compensation coverage. Ask specifically who will perform the work — some contractors subcontract to unlicensed workers. Get a written estimate with specific scope, materials, timeline, and permit responsibility clearly stated.
Homes built before 1970 may contain knob-and-tube wiring (pre-1940s) or aluminum wiring (1960s-1970s). Both present specific safety considerations that most insurance companies require be addressed. If your home has either, get an evaluation from a licensed electrician. Full rewiring is not always required — remediation options exist for aluminum wiring specifically.
Idaho's weather — ice storms, wildfire-related power outages — makes standby generator interest high among Treasure Valley homeowners. Whole-home generators require a transfer switch installation (electrical permit required), proper placement per local codes, and regular maintenance. Portable generators are a lower-cost alternative but require safe operation protocols to prevent carbon monoxide risk.
2026 Cost Reference
Honest cost ranges for Ada and Canyon County homeowners. Always get at least three estimates. Prices vary based on home size, complexity, and contractor availability.
| Project Type | Typical Range | Variables |
|---|---|---|
| Panel Upgrade — 100A to 200A | $2,500 – $5,000 | Utility coordination, location, age of wiring |
| EV Charger Installation (Level 2) | $500 – $1,800 | Panel capacity, distance, trenching needed |
| New Circuit Addition | $200 – $600 | Panel proximity, access, permit |
| Whole-Home Rewiring | $8,000 – $20,000+ | Home size, accessibility, material |
| Transfer Switch (Generator) | $800 – $2,500 | Manual vs. automatic, amperage |
| Electrical Inspection | $150 – $300 | Scope, report detail |
| Outlet or Switch Replacement | $75 – $200 per outlet | GFCI, AFCI, accessibility |
*Approximate 2026 ranges for the Treasure Valley. Always get three estimates. Permit fees are additional and vary by jurisdiction.
Common Questions
Yes — almost all electrical work in Idaho requires a building permit. This includes panel upgrades, new circuit installation, EV charger installation, and rewiring projects. Your licensed electrician should pull the permit as part of the project scope. Unpermitted electrical work creates problems when you sell and may affect your homeowner's insurance coverage.
Key indicators include frequently tripping breakers, a fuse box instead of a breaker panel, a 100-amp service in a home with modern appliances and HVAC, flickering lights, or a panel that feels warm to the touch. Homes built before 1980 that have not had a panel upgrade should be evaluated by a licensed electrician. A 200-amp panel is the current standard.
Technically a homeowner can perform some electrical work in their own residence in Idaho, but EV Level 2 charger installation involves a 240V dedicated circuit and typically panel work — both of which require a permit and inspection. Most homeowners and mortgage lenders prefer licensed electrician installation for liability and insurance purposes.
Idaho law requires a licensed electrical contractor for most residential electrical work beyond very minor repairs. Handymen are generally not authorized to perform panel work, add circuits, or install major electrical systems. Always verify the Idaho electrical contractor license through ibol.idaho.gov before hiring anyone for electrical work.
A straightforward 100-amp to 200-amp panel upgrade in the Treasure Valley typically takes one full day. Coordination with Idaho Power for meter disconnect and reconnect is required and may add scheduling time. More complex situations — older wiring, tight spaces, permit delays — can extend the timeline. Your electrician should provide a specific estimate.
GFCI (Ground Fault Circuit Interrupter) outlets are required in wet areas — bathrooms, kitchens, garages, exterior locations. AFCI (Arc Fault Circuit Interrupter) breakers are required for bedroom circuits in new construction and major renovations under current Idaho building codes. Older homes are not required to retrofit, but both technologies significantly reduce fire and electrocution risk. An electrician can assess your home's current protection levels.
My Home Electrical Connection lists verified, licensed electrical contractors serving Ada and Canyon County. Direct contact — no bidding, no middleman.
Find a Trusted Electrician →