Published October 5, 2026 by National Electric NM
If you are adding refrigerated air, an EV charger, or a hot tub, there is a good chance someone has told you the panel needs upgrading first. Here is what an electrical panel upgrade involves, what affects the cost, and how to tell whether you really need one.
What a panel upgrade includes
A true service upgrade is more than swapping a metal box. It usually includes a new main panel and breakers, a new meter base, new service entrance conductors, updated grounding and bonding, a permit, coordination with the utility for the disconnect and reconnect, and a final inspection.
Typical price range
Across the United States, a 100 amp to 200 amp upgrade commonly falls somewhere between about $1,500 and $4,000, and can run higher when the service has to be moved, the mast or meter base replaced, or underground conductors upsized. Treat those figures as a rough national ballpark, not a quote. The only reliable number comes from an electrician who has looked at your service.
What drives the cost
- Amperage: 200 amps is the usual target; 320 or 400 amp services cost more.
- Overhead or underground service, and the condition of the mast and meter base.
- Whether the panel stays in the same place. Moving it adds wiring work.
- Grounding: older homes often need new ground rods and bonding.
- The number of circuits to reconnect and any wiring problems found along the way.
- Utility and permit requirements where you live.
Do you actually need one?
You likely do if the panel is 100 amps or smaller and you are adding a large load, if it is a fuse box, if it is a Federal Pacific or Zinsco panel, or if there are signs of overheating. If the service is big enough and you have simply run out of breaker spaces, a sub panel is often a cheaper answer. A single bad breaker only needs breaker replacement.
New Mexico specifics
Many homes here were built with small services because evaporative coolers draw very little power. Converting to refrigerated air is the most common reason for an upgrade; see our guide to swamp cooler to refrigerated air conversions. We do panel upgrades statewide, including Albuquerque, Santa Fe, Las Cruces, and Rio Rancho.