An electrical panel replacement is one of those projects most homeowners only do once. That makes it hard to know what is normal, what should worry you, and what the day-of process actually looks like. If you have already decided your home needs a new panel (or your electrician has told you so), this guide walks through every stage from permit to final inspection, including the timeline, the cost factors, and the questions worth asking before you sign anything.
If you are still trying to figure out whether your panel needs to be replaced at all, our post on the 8 signs it may be time to upgrade your electrical panel covers the warning signs in detail. This guide picks up from the point where you have already made the decision.
Why Homeowners in Idaho Falls Are Replacing Their Panels
Most older homes in Southeast Idaho were built with 60-amp or 100-amp service. That was sufficient when the major electrical loads were a refrigerator, a water heater, lights, and a window AC unit. Modern households run a different equation: a heat pump or central AC, an electric range or induction cooktop, a tankless or electric water heater, multiple high-draw appliances, and increasingly an EV charger or two.
The 100-amp panel that comfortably handled a 1985 home struggles with a 2026 lifestyle. Breakers trip during normal use, the panel runs warm to the touch, and any new high-draw appliance forces a hard choice about what gets disconnected to make room. Replacing the existing panel with a 200-amp service resolves that ceiling and gives most homes 30 to 40 years of headroom for future additions.
The other common driver is insurance and resale. Some carriers will not write or renew policies on homes still running Federal Pacific Stab-Lok panels, Zinsco panels, or fuse boxes. Real estate inspectors flag these systems during sales, which often turns the replacement into a closing-table negotiation.
What an Electrical Panel Replacement Actually Includes
A full panel replacement is more than swapping the box on the wall. The complete project usually includes:
- A new main service panel sized to your target amperage (most often 200 amps)
- A new main breaker and updated circuit breakers for each branch circuit
- A replaced meter base and meter socket if the existing one cannot handle the higher amperage
- A new service entrance cable from the meter to the panel
- Updated grounding and bonding to current National Electrical Code (NEC) standards
- Permit fees and final inspection
- Coordination with the local utility (Idaho Falls Power, Rocky Mountain Power, or Fall River Electric depending on your address) to disconnect and reconnect service
In some cases the existing branch wiring inside the walls can be reused. In other cases (especially homes with aluminum branch wiring or ungrounded two-prong outlets) additional work is required to bring the rest of the system up to code. A licensed electrician will identify these issues during the initial assessment, not on the day of installation.
How Long Does a Panel Replacement Take?
Most residential panel replacements follow a predictable timeline:
| Phase | Typical Duration |
|---|---|
| Initial assessment and quote | 1 to 2 hours |
| Permit pulled with local jurisdiction | 1 to 5 business days |
| Utility coordination for disconnect | 3 to 10 business days |
| Day-of installation | 6 to 8 hours (full power-out window) |
| Inspection by local building department | 1 to 3 business days after install |
| Utility reconnection after passed inspection | Same day or next business day |
The actual hands-on work happens in a single day. The longer parts of the project are the permit and utility windows on either side. Plan for the full process to take two to three weeks from initial quote to final reconnection.
On installation day, expect your power to be off for the entire 6 to 8 hour work window. If anyone in the household relies on medical equipment, works from home, or has a refrigerator or freezer full of food worth saving, plan ahead. Many homeowners arrange to be out of the house entirely or rent a portable generator for the day.
What Electrical Panel Replacement Costs in the Real World
Pricing varies more than most homeowners expect because the project involves multiple variables. National averages for a straightforward 100-amp to 200-amp replacement run between $1,300 and $3,000, but Southeast Idaho homes routinely fall above that range when the work involves a relocated meter, new service entrance cable, or remediation of older wiring.
Several factors drive the final number:
- Target amperage. A 200-amp panel is the most common replacement and the price baseline. Homes adding multiple EV chargers, a home addition, or a workshop sometimes step up to 320 or 400 amps, which costs significantly more.
- Panel location. Moving the panel from a basement to an exterior wall (or vice versa) adds labor and material cost.
- Service entrance condition. If the existing service entrance cable, mast, or meter base is undersized or damaged, those components have to be replaced.
- Existing wiring. Aluminum branch wiring, ungrounded outlets, or knob-and-tube remnants add scope.
- Utility coordination fees. Some utilities charge for service disconnect and reconnect; others include it.
- Permit and inspection fees. These vary by city and county across Southeast Idaho.
A reputable electrician will provide a written, itemized quote after an in-person assessment, not a flat rate over the phone. If you receive a quote that seems substantially below the range above, ask exactly what is and is not included. Quotes that exclude permits, the meter base, or utility coordination are usually missing significant portions of the actual work.
The IRS Tax Credit on Panel Upgrades
Federal tax law currently offers a 30 percent tax credit (up to $600) for electrical panel upgrades that meet National Electric Code standards and enable the installation of qualifying energy-efficient improvements. If your replacement supports a heat pump, EV charger, or other qualifying equipment, you may be able to claim the credit on your federal return. Talk to your tax professional or check the current IRS guidance before counting on the credit, since program details change.
Walking Through Installation Day
Knowing the sequence helps the day go smoothly. Most jobs follow this order:
The electrician arrives early and confirms the utility disconnect is scheduled. Once power is cut at the meter, the team removes the old panel, the old meter base if it is being replaced, and the existing service entrance cable. The new components are installed in sequence: meter base first, then service entrance cable, then the new main panel. Each branch circuit is reconnected to a properly sized breaker in the new panel, and grounding and bonding are upgraded to current code.
A licensed electrician then performs a load test and verifies that every circuit is correctly identified and labeled. The local building inspector arrives (sometimes the same day, sometimes the next business day) and signs off on the work. The utility returns to reconnect service, and the homeowner walks the system one final time with the electrician.
This is also the right time to consider any additional electrical installation work that pairs naturally with a panel replacement. Whole-home surge protection, additional circuit breaker installation for new branch circuits, or a dedicated circuit for an EV charger installation or home generator installation is much cheaper to do while the panel is open than as a separate project later.
Questions to Ask Before You Hire
Not every electrician handles panel replacements, and not every electrician handles them well. Ask any contractor:
- Are you licensed in Idaho and bonded?
- Will you pull the permit, or am I responsible for that?
- Who handles the utility coordination?
- Is the quote inclusive of the meter base, service entrance cable, grounding upgrades, and all permit fees?
- What size panel are you recommending and why?
- How long will my power be off on installation day?
- What warranty do you provide on the panel and the labor?
A confident, experienced electrician will answer all of these without hesitation and put the answers in writing.
After the Replacement: What Changes
Once the new panel is in place, the differences are usually immediate. Breakers stop tripping during normal use. The panel runs cool to the touch instead of warm. There is room for new circuits without moving things around or running double-tapped breakers. And the foundation is in place for any future high-draw additions: a heat pump, an EV charger, a hot tub, a workshop, or solar.
If you have lived for years with an undersized or aging panel, the change is noticeable in ways you stop thinking about. The kitchen appliances all run at once. The breaker box does not buzz when the AC kicks on. And insurance and resale issues tied to outdated panels disappear.
Frequently Asked Questions
How long does an electrical panel replacement take?
The hands-on installation takes 6 to 8 hours, with power off for the duration. The complete project from initial quote to final utility reconnection usually runs two to three weeks because of permit and utility scheduling.
How much does a 200-amp panel replacement cost?
National averages run $1,300 to $3,000 for a straightforward replacement. Southeast Idaho jobs that involve a new meter base, relocated panel, or older home remediation can run $4,000 or higher. Always get a written, itemized quote.
Do I need a permit to replace my electrical panel?
Yes. Every electrical panel replacement in Southeast Idaho requires a permit pulled with the local building department and a final inspection before the utility will reconnect power. A licensed electrician handles this for you.
Will my power be off during the replacement?
Yes. Plan for the full 6 to 8 hour installation window without power. Coordinate medical equipment, refrigerator and freezer contents, and any work-from-home requirements in advance.
Should I replace my panel with 200 amps or higher?
A 200-amp panel is sufficient for the vast majority of single-family homes, including those with heat pumps, electric water heaters, and a single EV charger. Homes with multiple EV chargers, large workshops, or substantial additions sometimes warrant 320 or 400 amps. Your electrician can calculate the actual load and recommend the right size.
Can I keep my existing wiring after a panel replacement?
Often yes, if the wiring is in good condition and meets current code. Older homes with aluminum branch wiring, ungrounded outlets, or knob-and-tube sections may need partial rewiring during the project. An electrical safety inspection before the project will identify what needs to come along with the panel.
Will an electrical panel replacement increase my home’s value?
Not always directly, but it makes the home easier to sell and removes a common inspection flag. Buyers and inspectors look closely at the panel, and outdated systems often become negotiation points at closing.
Schedule Your Electrical Panel Replacement in Southeast Idaho Now!
If your home is showing the signs of an undersized or aging panel, the team at Advanced Home Services can walk you through the options, pull the permit, coordinate with your utility, and complete the work in a single day. Call today to schedule an in-home assessment and get a written quote for your electrical panel replacement.
About Advanced Home Services
Advanced Home Services is a locally owned home services company that has served Southeast Idaho for over 25 years. Our licensed electricians handle everything from a single GFCI outlet replacement to full panel replacements and new construction wiring across Idaho Falls, Rigby, Pocatello, Rexburg, Blackfoot, and surrounding communities. Every job is backed by our 100 percent satisfaction guarantee.