Free Written Estimates
Safe, code-compliant panel and service upgrades for Lyman homes and businesses — from 100-amp to 200-amp service and beyond.
Most Lyman houses were built after the 1947 fires, and a large share went up in the 1960s and 1970s, when a 100-amp service was the standard for a new home. That size handled an oil boiler, lights, a range and a dryer. It was never meant for a whole-house heat pump system, an EV charger and a well pump running together. With only about 4 percent of Lyman homes heating with electricity today and about 65 percent still on oil, the move to heat pumps is where most panels will run out of room. A load calculation before the heat pump installer arrives tells you whether an upgrade is needed and how large it should be.
Lyman's Code Enforcement Office has made the point directly: mini-split heat pump installations require an electrical permit and inspections, and the office has reported finding installations done without permits and with code violations. It has also reminded residents that an insurer may refuse a claim when it discovers unpermitted electrical work. Moving to a 200-amp service with room for heat pumps, whole-home surge protection and a future charger avoids that trap and keeps the new equipment on circuits that were planned for it. A Federal Pacific, Zinsco or Challenger panel should be replaced regardless of plans. The same goes for a fuse box still in service in one of the town's older farmhouses, since fuses can be swapped for a larger size that no longer protects the wire behind them.
About 13 percent of Lyman homes are mobile homes, which need services and grounding built to their own requirements, and some pond camps still run on small services installed for seasonal use. Any new service or full service replacement on a one- or two-family home in Maine must now include an emergency disconnect outside the house, on the wall or on a pedestal no more than 50 feet away and within sight. The town bills service permits per CMP customer and requires the utility account number, and Goodnow Electric supplies both, coordinates the CMP disconnect and reconnect, and meets Lyman's electric inspector. Every estimate is free and written.
Housing, heating, outage and permit details for the whole town are on our Lyman electrician page. Other work we do here: ev charger installation in Lyman, generator installation in Lyman, residential electrical in Lyman, emergency electrician in Lyman, and lighting services in Lyman.
The same service in neighboring towns: Dayton, Alfred, Waterboro, Hollis, Arundel, and Kennebunk.
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.
“Brett was able to get someone out to our house on short notice on a Saturday to deal with a melting circuit breaker. Tyler explained the issue and was able to resolve it quickly that day. Can't recommend them enough.”
Andrew Creamer • April 2026 • Google Review
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