Electrical Panel Upgrade Cost in Maine (2026): What to Expect

An electrical panel upgrade is one of those projects most Maine homeowners do not think about — until they try to add an EV charger, a heat pump, or central air and find out their panel is full. So what does a panel upgrade actually cost in 2026, how do you know if you need one, and what drives the price? Here is a clear breakdown from a licensed Maine electrician.

What does an electrical panel upgrade cost in Maine?

Most residential panel and service upgrades in Maine fall in these ranges, installed, including the permit and inspection:

Project	Typical installed cost
100-amp to 200-amp service upgrade	$2,000 – $4,000
Panel replacement (same amperage)	$1,500 – $3,000
Fuse box to circuit-breaker conversion	$2,000 – $4,500
Hazardous panel (Federal Pacific / Zinsco) replacement	$2,000 – $4,000
Sub-panel addition (garage, addition)	$1,000 – $2,000

Where you land depends on your home, the panel location, and whether the utility service entrance also needs work. A free assessment gives you a firm number.

Signs your Maine home needs a panel upgrade

• Lights flicker or dim when large appliances run
• Breakers trip frequently — or you still have a fuse box
• You have a 60- or 100-amp service and have outgrown it
• You have a recalled Federal Pacific or Zinsco panel (a known safety hazard)
• You are adding an EV charger, heat pump, hot tub, or an addition
• Warm panel covers, a burning smell, or scorch marks (call right away)

What drives the price

• Target amperage. Going to 200 amps (the common standard) costs more than a like-for-like swap, but it gives you the capacity for modern loads.
• Service entrance work. If the meter, mast, or utility connection needs upgrading too, that adds to the job.
• Panel location and accessibility. A panel in a tight or finished space takes more labor.
• Code-required extras. Whole-home surge protection, proper grounding, and arc-fault/ground-fault breakers may be required to bring the system up to current code.

Why upgrade to 200 amps?

A 200-amp panel is the practical standard for a modern Maine home. It gives you the breaker space and capacity to add an EV charger, a heat pump, central air, and a hot tub without overloading — and it makes your home easier to sell. If you are planning any of those upgrades, doing the panel first (or at the same time) avoids paying for two separate projects. Because we are licensed for both electrical and HVAC, we can coordinate the whole thing in one quote.

Frequently Asked Questions

How much does it cost to upgrade from 100 to 200 amps in Maine?

Typically $2,000–$4,000 installed, including the permit, utility coordination, and inspection. The exact price depends on your service entrance and panel location.

Do I need a permit to replace my electrical panel?

Yes — and we handle it. We pull the electrical permit, coordinate with the utility for the disconnect, and schedule the inspection so the upgrade is fully code-compliant.

Are Federal Pacific and Zinsco panels really dangerous?

These panels have documented failure risks (breakers that do not trip when they should) and are best replaced. If your Maine home has one, we will replace it with a safe, modern panel.

How long does a panel upgrade take?

Most residential panel upgrades are completed in a single day, including the utility disconnect and reconnect. We coordinate the timing so your power is out for as short a window as possible.

Get an upfront price for your panel

We will assess your current service, tell you honestly whether you need an upgrade, and give you a firm, upfront price — permit and inspection included. Request a free estimate or learn more about our electrical panel and service upgrades across Central Maine and the Kennebec Valley.

Price ranges are 2026 estimates for general budgeting and vary by home; contact us for a firm quote.