“The crew did several projects on our home renovation and they were professional, friendly, and communicative. We were happy with the service!”
Kristen Fulmer • December 2025 • Google Review

Free Written Estimates
Safe, code-compliant panel and service upgrades for Cumberland homes and businesses — from 100-amp to 200-amp service and beyond.
About half of Cumberland's homes still burn heating oil, and many of those are the town's older houses: the pre-1940 farmhouses along the back roads and the ranches and capes built between 1960 and 1979, which together make up almost 40 percent of the housing. Once those owners swap the boiler for ductless units, switch to a heat-pump tank for hot water or park an electric car in the garage, the question is rarely whether the house can use more electricity. It is whether a 100-amp service with a crowded panel can carry it without constant tripping or a failing main breaker.
Newer subdivisions around Cumberland Center are a different case. A house built in the 1990s or 2000s usually has a 200-amp panel, but that panel may already be full of tandem breakers from finished basements, additions, a hot tub or a detached garage. In the older houses the worry is the brand on the door: Federal Pacific, Zinsco and Challenger panels from decades back have a breaker track record that leads most electricians to advise swapping them out. In Cumberland, Goodnow Electric retires fuse boxes and those problem panels, takes 100-amp services to 200 and fits whole-house surge protection, and every job begins by adding up the real loads, planned heat pumps and car charger included, so the service matches the house.
Cumberland handles the paperwork locally. The Code Enforcement office on Tuttle Road issues electrical permits and inspects the work, and when a contractor does the job, the town expects the licensed electrician to obtain that permit. Goodnow Electric files it, books the inspector and arranges with CMP to pull and reset the meter on the day of the swap. One requirement catches owners off guard: the code Maine now enforces calls for an emergency shutoff outdoors whenever the whole service on a one- or two-family house is replaced, either on the wall or on a post the house can be seen from. Estimates are free and in writing, so you know what the service change includes, from the meter socket and mast to the new panel and grounding, before any date is set.
Housing, heating, outage and permit details for the whole town are on our Cumberland electrician page. Other work we do here: ev charger installation in Cumberland, generator installation in Cumberland, residential electrical in Cumberland, emergency electrician in Cumberland, and lighting services in Cumberland.
The same service in neighboring towns: Yarmouth, Falmouth, North Yarmouth, Gray, Windham, and Freeport.
For how the work is done anywhere in Southern Maine, see our main electrical panel upgrade service page and why Southern Maine homes outgrow 100-amp panels.
“The crew did several projects on our home renovation and they were professional, friendly, and communicative. We were happy with the service!”
Kristen Fulmer • December 2025 • Google Review
Describe the job and the address; a licensed electrician will reply with a written quote.