Do I need a permit to upgrade or replace an electrical panel?
Usually needs a permit
Panel and service work always requires a permit, and in most places must be done by a licensed electrician.
What changes the answer
- Service upgrade (100A to 200A, for example) — permit required, plus utility coordination
- Panel swap in place — permit required
- Adding a subpanel or a circuit — permit typically required
- Many jurisdictions will not issue this permit to a homeowner at all
These thresholds come from the model code and are commonly amended locally, which is usually where people get caught.
Why it matters
Unpermitted service work is both a fire risk and a resale problem, and the utility may refuse to reconnect work it has no record of.
Confirm the requirement with the authority that would issue the permit before deciding.
The version of this people actually ask
Do I need a permit to upgrade from 100 amp to 200 amp service?
Yes, essentially everywhere, and the building department is not the only party involved. A service upgrade changes what the utility has to deliver, so the utility has its own process and will normally want the inspection sign-off before it reconnects at the new capacity. Expect the meter base, the service entrance conductors, the grounding electrode system and the bonding to all come into scope, because the upgrade is the moment the whole service gets brought current.
Do I need a permit to replace a Federal Pacific or Zinsco panel?
Yes — a panel replacement is permitted work regardless of why you are doing it. These particular panels are worth naming because their breakers have a documented history of failing to trip, insurers increasingly decline to write policies on houses that still have them, and that means the replacement is often being done for insurance reasons in the first place. Doing it unpermitted defeats the purpose, since the carrier generally wants evidence the work was inspected.
Can a homeowner pull an electrical panel permit themselves?
This is the single most common item where the answer is no. Plenty of jurisdictions that happily permit homeowners for other work restrict service and panel work to a licensed electrician, because it involves the utility connection and because the failure mode is a fire inside the wall. Where a homeowner permit is allowed there is often a test to sit first. Worth confirming before planning around it.
This is the typical rule, not your answer
This is the typical rule in the United States and not a decision about your property — permitting is run by more than 22,000 separate authorities and any of them can amend the code it adopts, so confirm with your local building department before you start. Put a ZIP in to see what applies in that state, and how to reach the office that decides.
Electrical permits are required under the adopted NEC / IRC Chapter 34; not in the R105.2 exemption list.
Other projects
- Build a deckA permit is usually required once a deck is more than 200 square feet, more than 30 inches above grade, serves an exit door, or is attached to the house.
- Put up a fenceFences under 7 feet are typically exempt from a building permit — but height limits, corner-visibility rules and pool-barrier requirements are set locally and catch people constantly.
- Add a shed or small outbuildingOne-story detached sheds are typically exempt up to 200 square feet under the residential code — but the number people quote is 120, and both are right depending on which code your jurisdiction adopted.
- Replace a water heaterReplacing a water heater almost always requires a permit, even though it is routinely done without one.
- Remove or open up an interior wallIf the wall is load-bearing, a permit and engineered drawings are required. If you are not certain whether it is load-bearing, assume it is.
- Replace a roofRe-roofing normally requires a permit, and the number of existing layers is what usually decides whether you can go over the top.