
Wiring & Rewiring in South Portland, Maine
New Circuit Installation · Whole-Home Rewiring · Knob & Tube Replacement
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Wiring & Rewiring for South Portland Homeowners

Need wiring & rewiring in South Portland? Aces Highlands runs out of 508 Riverside St Unit 1 in Portland and covers Cumberland 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.
Whether you need a single new circuit or a complete rewire of an older home, Aces Highlands handles residential wiring with precision and code compliance.
Older homes in the Portland area may still have knob-and-tube or aluminum wiring that presents safety risks and insurance issues. We replace outdated wiring with modern copper wiring, properly routed and protected in every wall and ceiling cavity. A rewire often pairs with a panel upgrade for a fully modernized electrical system.
For renovations and additions, we run new circuits, install junction boxes, and ensure proper wire sizing for the intended load. We also handle plumbing and HVAC work for remodel projects, keeping everything under one roof.
Every wiring job includes proper circuit labeling, secure connections, and thorough testing. We pull permits when required and schedule inspections to ensure full code compliance.
Why South Portland Calls Aces Highlands
- Close enough to South Portland for a fast response, local enough to know the town
- Diagnostics come first, upsells do not — the invoice matches the quote
- Most calls get on the schedule the same week you reach out
- Licensed, insured, and background-checked — neighbors in South Portland leave us reviews on Google
South Portland Homes and What They Need
South Portland's housing is younger than Portland's but still old: census estimates put the median home at 1968, about a quarter of units date from before 1940, and roughly six in ten were built before 1980. A noticeable bump in the 1940s reflects the wartime shipyard years already noted on this page. About half of homes are single detached houses and about a quarter of units are in buildings of five or more apartments, and close to six in ten households own. The older grid neighborhoods such as Ferry Village, Knightville and Meetinghouse Hill hold modest capes and two-story houses on small lots, with later subdivisions filling in the rest of the city. Houses from the 1940s and 1950s can still have small 60- or 100-amp services, ungrounded circuits and galvanized supply lines, so plumbing work in a South Portland cape often turns up aging pipe once walls are opened.
Power, Storms and Wiring in South Portland
Central Maine Power serves South Portland, and the city shared in Cumberland County's heavy losses during the December 2023 windstorm, when gusts brought down trees across the region and outages ran for days in places. Shoreline neighborhoods take the brunt of nor'easter wind, and salt spray is hard on outdoor electrical gear, meters and disconnects. Census figures show about 65 percent of workers drive alone and about a fifth work from home, and most homes have a driveway, which makes a home charger practical for the growing number of electric vehicles. The limiting factor is usually the house, not the car: a small mid-century service may not carry a charger, a heat pump and an electric range together. That is the point where a panel and service upgrade becomes part of the plan, and it is worth sizing once for everything coming later.

Getting to Know South Portland
During World War II, South Portland's two shipyards built 266 cargo ships in just four years — 236 American Liberty ships plus 30 "Ocean" class vessels for Britain — with a workforce of roughly 30,000 that included thousands of women welders. The Liberty Ship Memorial near Bug Light Park marks the spot today.
That wartime boom is why South Portland has so much solid mid-century housing — homes built for shipyard workers and their families. Those same houses are now prime candidates for modern heat pumps, updated panels, and new water heaters, and we work in them constantly.
Local & Independent — Not a Franchise
Aces Highlands answers to South Portland homeowners directly, not a franchise office somewhere else in the country. Technicians are not on commission, so the recommendation you get is the one your house actually needs. 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
Old Wiring, Explained: Knob-and-Tube and Aluminum Branch Circuits
Southern Maine has a lot of housing stock old enough to have gone through several wiring eras, and two of them come up constantly on inspection reports: knob-and-tube and aluminum branch-circuit wiring. Neither one means your house is unsafe today, but both mean something specific, and homeowners deserve the real explanation instead of a scare pitch.
Read the Full GuideMore Electrical Services
Wiring & Rewiring is part of our full electrical services lineup. Explore the details or browse everything we offer in South Portland.
Wiring & Rewiring DetailsAll Services in South PortlandService Info
Service Area
South Portland, Cumberland County, ME
Phone
(207) 670-8616Hours
Open 24 hours, 7 days a week
Codes & Permits for Wiring & Rewiring in South Portland
Electrical work in South Portland is licensed and permitted under Maine's Electricians' Examining Board, which adopted the 2026 National Electrical Code effective July 1, 2026. Confirmed live on the city's Code Enforcement page: "Electrical Permitting. Reviewing and Issuing electrical permits... Any new wiring requires an electrical permit," and only licensed Maine electricians may pull permits and work in the city. The office (829 Sawyer Street) functions as South Portland's Local Electrical Inspector under Maine's electrician licensing law (32 M.R.S. ch. 17); no individual inspector was named on the page. South Portland sits on Portland Harbor and overlooks Casco Bay with a working waterfront, giving coastal/salt-air exposure (Wikipedia).
- Rewiring beyond the state's 'minor repair work' exemption (which covers only replacing existing switches, sockets, lamps, fuses, and repairing entrance-service equipment) requires a standard electrical permit. maine.gov
- CPSC Publication 516 ('Repairing Aluminum Wiring') states that homes built before 1965 are unlikely to have aluminum branch-circuit wiring, while homes built between 1965 and the mid-1970s may have it; a Franklin Research Institute survey found that homes with this pre-1972 aluminum wiring are 55 times more likely to have a connection reach 'Fire Hazard Conditions' at a receptacle, switch, or other connection point than a home wired with copper. The underlying hazard is heat building up at the aluminum-to-device connection, not the aluminum wire itself failing. cpsc.gov
- CPSC recognizes three permanent repair methods for aluminum branch-circuit wiring: (1) complete rewiring with copper, (2) the COPALUM crimp connection system, and (3) an approved 'alternative repair method' using a listed connector such as an AlumiConn connector to pigtail a short length of copper wire onto the existing aluminum conductor. CPSC does not list simply swapping in CO/ALR-rated devices as one of its three approved permanent repairs, and does not endorse do-it-yourself repair. cpsc.gov
- State law: 'No electrical equipment may be installed or altered unless the person making the installation first obtains a permit from the Electricians' Examining Board, or towns/cities that have their own electrical inspector.' Exceptions to the state permit include: single-family dwellings (certification is needed on single-family dwellings, or a licensed Master electrician may verify the work); utility-company work on its own equipment; and 'minor repair work, including the replacement of lamps, fuses, lighting fixtures, switches and sockets, the installation and repair of outlets, radio and other low voltage equipment and the repair of entrance service equipment.' maine.gov
How Aces Highlands Handles Wiring & Rewiring in South Portland
- 25% of South Portland's homes predate 1940, old enough that knob-and-tube or aluminum branch wiring still turns up behind the plaster — both get brought up to current code as we go, not patched around.
- Maine only exempts like-for-like switch/outlet swaps from the permit requirement — any circuit extension or addition on a rewiring job is permitted work in our hands.
- Every circuit we touch gets tested and labeled, and any new run is built to the 2026 NEC — the edition Maine requires for work starting July 1, 2026 on.
South Portland's municipal building on Cottage Road in the Meetinghouse Hill area.
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
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!
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.
Ryan Eling
3 months ago
This team was called in by my property management company for where I rent. Elijah and his team were professional, clear speaking. Good communicators gave me the real deal. Didn't give any runaround. I trust them and want to use them for my own projects.
Christian van Loenen
4 months ago
Beyond impressed with Elijah and his team. Professional, communicative, and do great work. HIGHLY recommend. Thank you, Elijah!
John Walton
5 months ago
I've had three HVAC issues over the past two years. Each time I call, Elija or the office picks up the phone, and my problem is fixed in 24 hrs. Their solutions always feel correct and honest. I cannot recommend them more.
Wiring & Rewiring FAQs
Will my insurance company cover a home with knob-and-tube wiring?
Increasingly, no. Many insurers in Maine decline coverage or charge steep premiums for homes with active knob-and-tube, and some require replacement before closing on a sale. Rewiring resolves the insurance problem and removes a genuine fire risk at the same time.
How much does it cost to rewire a house?
Nationally, whole-home rewiring typically runs $4-$10+ per square foot depending on access, home age, and finish level — a partial rewire of only the original circuits costs far less. After walking your home, we quote a firm written price so there are no surprises.
Do you have to open up all my walls to rewire?
No. We fish new wiring through existing cavities from basements, attics, and small access openings. Some targeted drywall openings are usually necessary, but they are modest and easy to patch — nothing like the gut job people imagine.
How long does a whole-home rewire take?
Most single-family rewires take several days to a week depending on size and access. We stage the work so you keep power in the rooms you are living in, and we walk you through the schedule before we start.
Can I just add GFCI outlets instead of rewiring?
Sometimes. GFCI protection can add shock protection to ungrounded circuits and is a legitimate, code-recognized improvement. But it does not fix deteriorated insulation or overloaded conductors. We will tell you honestly which situation you have — protection upgrade or genuine rewire.
More Services in South Portland
Aces Highlands handles HVAC, plumbing, and electrical for South Portland homeowners. Here is more of what we do nearby.
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Call our South Portland team or get a free quote. We will get you scheduled and take care of it right the first time.
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