
Panel Upgrades in Berwick, Maine
100 to 200-Amp Upgrades · Breaker Replacement · Code Compliance
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- Since 2019
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Panel Upgrades for Berwick Homeowners

Need panel upgrades in Berwick? Aces Highlands runs out of 508 Riverside St Unit 1 in Portland and covers York County routinely, which means a technician who already understands the area's homes and permit process shows up, not a stranger learning it on the job.
An outdated or undersized electrical panel can be a safety hazard and limit what your home can handle. Aces Highlands upgrades residential panels to meet modern demands -- from EV charger circuits to heat pump installations -- across Portland, South Portland, Scarborough, Westbrook, Gorham, and Greater Portland.
Many older homes in the Portland area still have 100-amp panels or outdated fuse boxes that cannot support modern electrical loads. We upgrade panels to 200-amp service, replace Federal Pacific and Zinsco panels, and install new breaker panels that meet current electrical codes. A 200-amp service is the standard for today's homes -- it gives you the headroom to run an EV charger, a heat pump, central air, and an electric range all at once without nuisance trips or overheating.
There are clear signs you have outgrown your panel: breakers that trip often, lights that flicker when an appliance kicks on, a fuse box instead of breakers, or no open slots left to add a circuit. Federal Pacific (FPE Stab-Lok) and Zinsco panels are a special concern -- their breakers are known to fail to trip during a fault, which is a real fire risk, and many home insurers in Maine now require them to be replaced. If your panel is warm to the touch, rusted, or has scorch marks, treat it as urgent.
A panel upgrade is often required before adding major appliances, EV chargers, heat pump installations, or finishing a basement. We handle the full scope -- pulling the permit, coordinating the service disconnect and reconnect with Central Maine Power, installing the new panel and meter base, transferring every circuit, and scheduling the municipal inspection. A typical 100-to-200-amp upgrade is a one-day job, and we keep your downtime to a few hours.
Every panel upgrade is performed by a Maine-licensed electrician and includes proper grounding, bonding, surge consideration, and clear circuit labeling. We test all circuits before we leave and walk you through your new panel so you know where everything is. While the panel is open, it is also the right time to address any outdated wiring in your home. Financing is available, and every estimate is free -- contact us to schedule.
Why Berwick Calls Aces Highlands
- Close enough to Berwick for a fast response, local enough to know the town
- No scare tactics — just an accurate diagnosis and a price that holds
- A short wait for a truck, not a long one — most jobs move fast
- Licensed and insured; Google reviewers back up the work
Berwick Homes and What They Need
Berwick's median home was built in 1989, with 16 percent of the housing stock predating 1940 and 21 percent predating 1960 -- a newer profile than you might expect from one of Maine's oldest incorporated towns, since most of the historic core split off with South and North Berwick generations ago.
Power, Storms and Wiring in Berwick
Central Maine Power serves Berwick, with no municipal electric utility in town. Panel upgrades are a routine request as Berwick homeowners add heat pumps and modern appliances to houses built well before either was standard.

Getting to Know Berwick
Berwick was incorporated on June 9, 1713, the ninth town incorporated in what is now Maine, on land the Abenaki knew as Newichawannock, or 'river of many falls.' The town used to be much bigger: South Berwick split off in 1814, and North Berwick followed in 1831.
Diamond Hill, at 490 feet, is Berwick's highest point today -- a modest peak in a town whose real distinction is just how long it's been settled, older than the United States itself.
Local & Independent — Not a Franchise
We are an independent, Portland-based company, not a franchise chain routing your Berwick job to a call center. Our technicians are not commissioned salespeople and nobody here is required to upsell you anything. We do the work you called us for, do it right, and earn the next call. That is the whole business model.
How Your Electrical Panel Works
- Meter — measures the power the utility delivers
- Main breaker — the single shutoff for the whole panel
- Branch breakers — one per circuit, trip on overload or a fault
- Neutral / ground bus — the common return and safety path
- Panel capacity — how much headroom is left for new circuits
Homeowner Guide
Panel Upgrades: What Southern Maine Homeowners Should Know
Most electrical panel calls we get start the same way: a homeowner wants an EV charger, a heat pump, or a hot tub, and the panel that came with the house has nothing left to give. Here's the background we'd want you to have before that conversation with an electrician.
Read the Full GuideMore Electrical Services
Panel Upgrades is part of our full electrical services lineup. Explore the details or browse everything we offer in Berwick.
Panel Upgrades DetailsAll Services in BerwickService Info
Codes & Permits for Panel Upgrades in Berwick
Electrical work in Berwick is licensed and permitted under Maine's Electricians' Examining Board, which adopted the 2026 National Electrical Code effective July 1, 2026. Berwick's Code Enforcement Office does not name a municipal electrical inspector; electrical permits and inspections fall under the State of Maine electrical inspection program (Office of Professional & Occupational Regulation / Electricians' Examining Board). South Berwick was set off from Berwick in 1814 and North Berwick in 1831; those two neighboring towns — not Berwick itself — are on Unitil's piped natural-gas service list.
- Chapter 120 does amend NEC 230.4(E): where a building is supplied by more than one service (or a combination of branch circuits, feeders and services), Maine requires 'a permanent plaque or directory' at each service disconnect location and each outside meter location identifying all other services/feeders/branch circuits and the area each one serves. maine.gov
- Buxton's own electrical permit application fee schedule illustrates how a service change is billed at the municipal level: $50 per meter for permanent service up to 200 amps, and $50 per additional 200-amp meter above that, separate from the per-square-foot wiring fee. source
- A panel or service change is not 'minor repair work' under the state permit exemption (which covers only things like fuse/lamp/fixture/switch/socket/outlet replacement and entrance-service repair) — it requires the standard electrical permit, issued either by the Electricians' Examining Board or by a municipality with its own electrical inspector. maine.gov
- A municipality may adopt its own program of electrical inspections and, once it does, may require its own local permit in place of the state permit (30 M.R.S. §4173, part of Title 30-A's 'Regulation and Inspection of Electrical Installations' subchapter). There is no population threshold for this, unlike the Maine Uniform Building and Energy Code's mandatory-enforcement line at 4,000 residents — running a municipal electrical inspection program is an individual town choice at any population size. mainelegislature.org
How Aces Highlands Handles Panel Upgrades in Berwick
- Panel and service changes fall outside Maine's minor-repair exemption entirely — we pull the standard electrical permit on every one, no exceptions.
- Because Central Maine Power (CMP) owns the service drop, we coordinate the work order and any disconnect/reconnect with them before your new panel goes live.
- The finished panel is built and inspected to the 2026 NEC, the edition Maine has required for every installation starting July 1, 2026.
A historic farmhouse along a village road in Berwick, one of Maine's oldest inland settlements.
Street View © Google
Why homeowners choose Aces Highlands
We show up when we say
We show up on time, as promised, and complete the work with clean professionalism.
Pricing upfront, before work starts
Honest diagnostics and a clear price before any work begins — no surprises on the invoice.
Done right the first time
HVAC, plumbing and electrical done right the first time — backed by our workmanship guarantee and 100% satisfaction guarantee.
Locally owned in Portland, Maine · Serving Greater Portland and Southern Maine since 2019
What Electrical customers say
Susan Donegan
3 months ago
We have called Samuel for our electrical needs over the last few years and have always been impressed with professional and courteous attitude — installing extra outlets, installing new lights and ceiling fans, our whole house generator, charger for the electric car, even the hot tub!!! His price was fair, and never disappointed when work was completed.
Amanda R
2 months ago
I've had an excellent experience working with them for both electrical and HVAC work as I remodel my 1785 home. I highly recommend them.
Malina Foss
3 months ago
I can not recommend Sam and his team enough!! In a world of slow response times and cut corners they went above and beyond in every area, installing a new electrical panel for me. Their attention to detail and love of their craft truly sets them apart from the rest!
Nichole A
a year ago
Highly recommend! Cannot thank them enough for fixing my water heater. Elijah is very reliable and communicative. No hassle, no phone tag, transparent with cost and quick to repair the issue. I know who to call if I need help again!
Tom
14 Aug 2024
He was very friendly. He gave me an honest explanation on why I shouldn't recharge my A/C unit and what he suggested made much more sense. He really took care of everything. He is very professional, always called me with updates. 5 stars is not enough — I give this company 10 stars.
Jacqueline Vogeley
2 weeks ago
Great experience! Open, honest and efficient 🙌🏽 Job well done
Panel Upgrades FAQs
How long does an electrical panel upgrade take?
Most 100-to-200-amp upgrades are completed in a single day. Your power is off for a portion of that day while we swap the panel and coordinate the disconnect and reconnect with Central Maine Power — we schedule it to keep your downtime to a few hours.
Do I need a permit for a panel upgrade in Maine?
Yes. Panel and service upgrades require an electrical permit and municipal inspection. We pull the permit, schedule the inspection, and handle the utility coordination as part of every job — you do not have to manage any of it.
Why do Federal Pacific and Zinsco panels need to be replaced?
Breakers in FPE Stab-Lok and Zinsco panels have a documented history of failing to trip during a fault, which is a genuine fire hazard. Many Maine insurers now require replacement before issuing or renewing a homeowner policy. If you have one, replacement is a safety priority, not an upsell.
Do I really need 200 amps, or is that an upsell?
It depends on your loads. If you plan to add an EV charger, heat pump, or electric range, 200 amps is the practical standard. If your 100-amp service comfortably covers your actual usage and no additions are planned, we will tell you it is fine — our electricians are not commissioned salespeople.
Will a panel upgrade fix my flickering lights and tripping breakers?
Often, yes — those are classic symptoms of an overloaded or failing panel. But they can also come from a loose connection or a single overloaded circuit, which is a much smaller fix. We diagnose the actual cause first and quote you for what you need.
More Services in Berwick
Aces Highlands handles HVAC, plumbing, and electrical for Berwick homeowners. Here is more of what we do nearby.
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Electrical Repair & Troubleshooting in BerwickNeed Panel Upgrades in Berwick?
Call our Berwick team or get a free quote. We will get you scheduled and take care of it right the first time.
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