
HVAC, Plumbing & Electrical in South Portland, Maine
Your Local Home Service Team in South Portland
South Portland homeowners count on Aces Highlands for reliable HVAC, plumbing, and electrical service. From the Willard Beach neighborhood to Mill Creek and Redbank, we serve every corner of South Portland with the same attention to detail and honest communication.
Many South Portland homes were built in the mid-century era and benefit from modern heat pump systems that provide both heating and cooling. We specialize in ductless mini-split installations that add comfort without requiring ductwork modifications.
Whether you need boiler repair, drain cleaning, or a complete electrical panel upgrade, our South Portland service calls are fast and professional. Schedule your service today.
Why Choose Us for South Portland
- Local team based at 508 Riverside St Unit 1 in Portland — minutes from South Portland
- Honest diagnostics and transparent pricing — no upselling
- Same-week scheduling for most service calls
- Licensed, insured, and reviewed by real customers on Google
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.
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.
Heating and Cooling in South Portland
Heating fuel in South Portland is close to a three-way split. Census estimates show about 38 percent of occupied homes on fuel oil or kerosene, about 34 percent on utility gas and about 18 percent on electricity, with bottled propane near 5 percent. Unitil's Northern Utilities serves the city, so gas is available on many streets but not all. The whole city sits on Casco Bay and the Fore River, and the Jetport runway is inside city limits, so the official Portland weather record is effectively local: January lows average in the mid-teens and nights at or below zero come about ten times a winter. Wind off the water drives heat loss in older, loosely built houses. Many owners of oil-fired homes are adding ductless mini-splits in South Portland to cut oil use while keeping the existing system for the coldest stretches.
Water Supply and Drains in South Portland
Drinking water in South Portland comes from the Portland Water District's Sebago Lake supply, but wastewater is the city's own: South Portland runs its own treatment plant and collection system through its Water Resource Protection department, separate from the water district. Like Portland, the city grew up with combined sewers. In 1987 it had 28 combined overflow outlets; sewer separation has cut that to four, and the planned Pearl Street pump station upgrade is meant to bring it to two. Separation work often means new connections at the street, and it puts attention on the private pipe between each house and the main. Near the shore, basements in low spots can take on water after heavy storms. A working sump, a sound lateral and a leak check on older supply lines are the practical priorities in these neighborhoods.
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.
Local & Independent — Not a Franchise
Aces Highlands is a locally owned Portland, Maine company serving South Portland — not a national franchise. 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.
Service Info
Service Area
South Portland, Cumberland County, ME
Phone
(207) 670-8616Hours
Open 24 hours, 7 days a week
South Portland at a Glance
26,498
Population (Census / ACS estimate)
Median year built: 1968
Main Heating Fuels
- Heating oil 38%
- Natural gas 34%
- Electricity 18%
- Other 10%
Water
Portland Water District
Sewer
South Portland Water Resource Protection Department
Natural Gas
Northern Utilities, d/b/a Unitil
Electric Utility
Central Maine Power (CMP)
Code Office
Code Enforcement Office, City of South Portland
Sources: en.wikipedia.org · api.censusreporter.org · pwd.org · en.wikipedia.org · southportland.org · maine.gov · southportland.org · legislature.maine.gov · maine.gov · maine.gov
Our Services in South Portland
From heat pumps to plumbing and electrical, we handle the full range of residential services for South Portland homeowners.

Heat Pumps & Mini-Splits
Energy-efficient heating and cooling with cold-climate heat pump installations, replacements, and maintenance.
Heat Pumps & Mini-Splits
Boilers & Hydronic Heating
Expert boiler diagnostics, maintenance, repairs, and installations for reliable winter heat.
Boilers & Hydronic Heating
Furnace Repair & Installation
Dependable furnace diagnostics, tune-ups, repairs, and full system replacements.
Furnace Repair & Installation
Residential Plumbing
Leak repairs, drain cleaning, fixture installations, and full plumbing troubleshooting.
Residential Plumbing
Water Heaters
Tank and tankless water heater installation, repair, and replacement for reliable hot water.
Water Heaters
Electrical Services
Panel upgrades, wiring, outlets, lighting, and full commercial and residential electrical work.
Electrical ServicesEvery Service We Offer in South Portland
HVAC, plumbing and electrical, sub-service by sub-service, each with codes, permits and local conditions specific to South Portland.
Ready to Get Started in South Portland?
Whether you need a heat pump installation, boiler repair, or plumbing service, our South Portland team is ready to help. Call us or request service online.
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