Electrical Panel Upgrade Cost Estimator
Pick your upgrade size and add-ons for realistic electrician pricing.
Runs entirely in your browser — your numbers never leave this page.
How it works
Panel upgrade = panel + breakers + utility coordination:
- 100A → 200A (~$2,800): the standard modern upgrade — needed for EV chargers, additions, workshops.
- 200A → 400A (~$5,500): large homes, all-electric conversions, ADUs.
- Like-for-like 100A (~$1,800): replacing a dangerous old panel (Federal Pacific, Zinsco) without upsizing.
- Utility side: the service drop and meter may need upgrading too — $500–1,500, coordinated with your utility.
- Surge protector (+$450): cheap insurance for every circuit in the house — add it while the panel is open.
- Signs you need it: tripping breakers, flickering lights, no room for new circuits, or a fuse box.
Frequently asked questions
How much does a panel upgrade cost?
About $2,800 for 100A→200A, $5,500 for 200A→400A, $1,800 for like-for-like 100A replacement.
Do I need 200 amps?
If you're adding an EV charger, workshop, addition, or going all-electric — yes. Most 1970s+ homes already have 200A.
How long does it take?
A day for the swap; utility coordination and inspection add 1–3 weeks of scheduling.
Can I DIY a panel upgrade?
No — the service lugs stay live even with the main off, and utilities/permits require a licensed electrician.
What are Federal Pacific / Zinsco panels?
Old panels with documented breaker failure risks — replace on sight, even if "working".
Will the power be off?
Yes — typically 4–8 hours during the swap. Plan for it.
Do I need a permit?
Yes, always — plus utility notification and inspection. Reputable electricians handle all of it.
What is a whole-house surge protector?
A device at the panel (~$450) protecting every circuit from surges — cheap insurance, easy to add during the upgrade.
Does it add home value?
Indirectly — it removes objections (old panels kill deals) and enables EV chargers buyers want.
Why is my quote higher?
Utility-side upgrades, long service runs, asbestos in old panels, or code-required extras (grounding, smoke detectors) add up.