How much does it cost to upgrade an electrical panel?
Upgrading an electrical panel — typically from 100A to 200A service — is common in older homes and before adding big loads like an EV charger, heat pump, or addition. Here's what a permitted, professionally installed upgrade costs.
What drives the cost
- Service size — moving to 200A (or higher) and the number of circuits involved.
- Whether the meter base and service entrance also need upgrading (utility coordination).
- Permit and inspection fees, which are required for service work.
- Accessibility and condition of existing wiring — knob-and-tube or aluminum branch wiring adds work.
- Whether a temporary disconnect/reconnect with the utility is needed.
How your location changes the price
Permit fees, utility requirements, and licensed-electrician rates vary widely by jurisdiction. Some utilities also have their own coordination costs for upgrading the service drop and meter.
Signs it's time to replace
- Breakers trip frequently or the panel feels warm.
- You're adding a major load (EV charger, heat pump, hot tub, addition).
- An old 100A (or fuse) panel that can't keep up with modern demand.
- An inspection flagged the panel, or it's a recalled/obsolete brand.
Can you DIY it?
No — a panel/service upgrade is licensed-electrician-only work. It involves the main service, the utility connection, and permitted inspection; doing it yourself is both dangerous and almost always illegal without a license. This is one to always hire out.
Plan for it with HouseCue
HouseCue builds a private 5-year cost forecast for your home — so a big-ticket replacement like this is something you budget for on your terms, not a surprise. Track the age and condition of every system, get reminders before things fail, and connect with a vetted pro only when you choose.
Get your home's forecast freeFrequently asked questions
Do I really need a 200A panel?
If your home runs on 100A and you're adding an EV charger, heat pump, electric range, or an addition, you may exceed capacity — an electrician can run a load calculation. Many modern homes are built to 200A as standard for headroom.
Is a panel upgrade the same as adding a subpanel?
No. A subpanel adds circuit capacity downstream of your existing service and is cheaper, but it doesn't increase your total service amperage. If your main service is maxed out, you need a service upgrade, not just a subpanel.
Why does an electrical panel upgrade need a permit?
Because it's service-entrance work tied to the utility and to life-safety code. The permit ensures a licensed electrician does it and an inspector verifies it — important for safety and for a clean record when you sell.
Related guides
Cost figures are US national averages for professionally installed work and are general educational information, not a quote. Actual prices vary by market, materials, scope, and site conditions — always get itemized estimates from licensed local pros.