Upgrading an electrical panel — for example from 100A to 200A service — typically costs $1,500–$4,000, including the panel, labor, permit, and inspection.
What affects the price
Amperage
Going to 200A or 400A service costs more than staying at 100A.
Access
A cramped or awkwardly located panel takes longer.
Service mast / meter
Replacing the mast, meter, or grounding adds cost.
Permit + inspection
Required almost everywhere; the utility must also reconnect.
Cost breakdown
National-average planning ranges — your local pricing varies by region, scope, and access.
DIY or hire a pro?
Working in a live service panel is dangerous and permit-required — licensed electrician only.
Estimating this job?
Use the free size your feeders, then turn it into a priced quote your customer can approve with the free estimate generator.
FAQ
How much to upgrade from 100 to 200 amp service?
Typically $1,800–$3,500 including the panel, labor, permit, and utility reconnect.
How long does a panel upgrade take?
Usually one day of work, plus scheduling the permit inspection and the utility disconnect/reconnect.
Do I need a permit to upgrade my panel?
Yes — panel and service work is permit-and-inspection required nearly everywhere, and the utility must disconnect and reconnect power.