How much does it cost to upgrade an electrical panel from 100 to 200 amps?
A 100-to-200-amp panel upgrade typically costs $1,800–$4,000 installed, including the new panel, breakers, labor, and permit. If the utility needs to upgrade the meter base or run new service entrance wire, costs can push to $4,500–$6,500.
This is one of the most heavily permitted electrical jobs — your municipality will require a licensed electrician and an inspection before power is restored. Budget 1–2 days without power during the work.
What's included in the cost — and what adds to it
Basic panel swap (same location, same meter base)
$1,800 – $2,800How to tell100-amp panel in good condition, meter base doesn't need replacing, utility lines reach
The fixSwap panel, add new breakers, permit + inspection
Panel relocation
$2,500 – $4,500How to tellCurrent panel is in a closet, bathroom, or code-violating location — must be moved
The fixNew panel location, extended wiring runs, new permit
Meter base or service entrance upgrade needed
Add $400 – $1,200How to tellUtility company requires new meter base or weatherhead when amperage increases
The fixNew meter base and/or service entrance cable — utility schedules the final connection
Federal Pacific Stab-Lok or Zinsco panel
$1,800 – $3,500 (urgent, not optional)How to tellExisting panel is Federal Pacific or Zinsco brand — these are known fire hazards
The fixReplace proactively regardless of amp service — breakers don't reliably trip
AFCI/GFCI breaker upgrades at same time
$40 – $100 per circuit addedHow to tellCode requires AFCI protection in bedrooms, kitchens, living areas during panel work
The fixInstall AFCI/GFCI breakers as required — electrician will flag what's needed
Try this first (before you pay anyone)
- Check your current panel's label for the main breaker amperage — it's stamped on the main breaker at the top of the panel. If it says 100A or 150A, you likely need an upgrade for an EV charger, hot tub, or large addition.
- Call your utility company before hiring anyone — they need to confirm the meter base can handle 200A and schedule the cutover. This step can add 1–4 weeks to the timeline.
- Ask your electrician whether a subpanel or load management device could solve your immediate need (like an EV charger) for less money than a full upgrade.
Unlock the hiring checklist
Use this before you call an electrician, so you know what to ask and what to avoid.
Call a pro when…
- Any panel work — this is licensed-electrician-only in every state, no exceptions
- Breakers are warm to the touch, you smell plastic from the panel, or any breaker fails to trip under load — these are emergency signs
- You're adding an EV charger, hot tub, central AC, or large kitchen remodel — any of these may require the upgrade first
- Your panel is Federal Pacific Stab-Lok (red lettering) or Zinsco (rainbow-colored breakers) — replace it now
Repair or replace?
Panels don't wear out the same way appliances do — a modern 200-amp panel lasts 40–60 years with no issues. The decision isn't repair vs replace on a functioning panel; it's whether your current panel's capacity matches your home's needs. If you have a documented hazardous panel (Federal Pacific, Zinsco) or you keep tripping the main breaker, replacement is the only safe answer. A working 200-amp panel with a bad individual breaker costs $150–$400 to fix — that's not a reason to replace the whole panel.
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Related questions
How long does a panel upgrade take?
Most panel upgrades take one full day. The power is off for 4–8 hours during the work. Utility companies then schedule their side of the cutover, which may be same-day or within a few days depending on your provider.
Do I need a permit to upgrade my electrical panel?
Yes — always. A permit is required in every jurisdiction in the US for panel work. Unpermitted panel upgrades are flagged during home sales and can void homeowner's insurance if you have an electrical fire. A licensed electrician will pull the permit for you.
Is 200 amps enough for an EV charger?
For most homes, yes. A Level 2 EV charger uses 40–50 amps on a dedicated circuit. A 200-amp panel can handle that alongside normal household loads. If you have two EVs or a very large home, some electricians recommend 320-amp service — but 200A is sufficient for the vast majority of single-EV households.
What's the difference between a panel upgrade and a service upgrade?
A panel upgrade replaces just the breaker box inside your home. A service upgrade includes the utility's incoming wires and meter base — the full line from the street to your panel. Depending on your utility and what they require, you may need both. Your electrician will coordinate with the utility to determine the scope.