EFFICIENCY MAINE REBATE
AC Installation in Harpswell, Maine
Harpswell, Cumberland County
Heat Pump & Ductless Cooling · Right-Sized for Your Home · Quiet, Efficient Systems
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- Licensed & insured
- Since 2019
Efficiency Maine Registered Vendor- 100% Satisfaction Guarantee
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AC Installation for Harpswell Homeowners
Heat Pump & Ductless Cooling
Right-Sized for Your Home
Quiet, Efficient Systems
When Harpswell homeowners need ac installation, Aces Highlands is the local team to call. We are based at 508 Riverside St Unit 1 in Portland — a short drive from Harpswell in Cumberland County — so we respond quickly and know the homes, the weather, and the codes in your area.
Maine summers are getting warmer, and a properly sized air conditioning system keeps your home comfortable through every heat wave. Aces Highlands installs high-efficiency cooling — from whole-home heat pumps to single-room ductless units — sized and installed right the first time.
For most Southern Maine homes, the smartest way to add air conditioning is a cold-climate heat pump: it cools efficiently in summer and heats your home the rest of the year, all from one system. We are certified GE and Hitachi installers and work with every major brand to match your home and budget.
If you only need to cool a few rooms — a bedroom, a finished attic, an addition, or a home office — a ductless mini-split delivers targeted, zone-by-zone cooling without any ductwork. Every install begins with a proper load calculation so your system is sized correctly: an oversized AC short-cycles and leaves humidity behind, while an undersized one never keeps up on the hottest days.
Our cooling installations include indoor and outdoor unit placement, refrigerant line routing, electrical connections, and full performance testing. Many systems require an electrical panel upgrade to support the new load — we handle that in-house as a licensed Maine electrical contractor. Ask about our financing options to make your AC installation more affordable.
Why Harpswell Calls Aces Highlands
- Based just outside Harpswell and out on Cumberland County calls every day
- Diagnostics come first, upsells do not — the invoice matches the quote
- A short wait for a truck, not a long one — most jobs move fast
- Licensed and insured, and reviewed by real customers on Google
Harpswell Homes and What They Need
Harpswell's housing is almost all detached houses, over 90 percent in Census estimates, spread along Harpswell Neck and Orr's, Bailey and Great Island. Of roughly 4,300 homes, about a third are seasonal, many of them old summer cottages on the water. The median build year is 1979; about one in five homes predates 1940, and roughly half predate 1980, while under a fifth were built after 2000. Many started as summer places and were converted to year-round use, which often leaves shallow crawlspaces, piping in unheated spaces and additions wired and plumbed at different times. Salt air adds its own wear to outdoor equipment and fittings. On older island houses, repiping and plumbing upgrades are often part of making a cottage livable through February.
Heating and Cooling in Harpswell
Harpswell heats with oil and propane, since no natural gas mains reach the peninsula. The latest Census five-year estimates show about 44 percent of occupied homes on fuel oil and about 34 percent on propane, one of the highest propane shares in the county, with wood around 9 percent and electricity about 7 percent. Surrounded by Casco Bay, the town is milder than inland Maine in deep winter, but it takes the full force of coastal wind, which matters for heat loss in drafty cottages. A tank of propane or oil also has to arrive over a single road on each neck. For a converted cottage, cold-climate heat pumps can cut delivered fuel, provided the outdoor units are mounted above drifting snow and out of direct salt spray.
Getting to Know Harpswell
Harpswell has more coastline than any other town in Maine — about 216 miles of it, spread across a long peninsula and dozens of islands. It is also home to the Bailey Island Bridge, built in 1927–28 from granite slabs stacked in an open cribwork that lets the tide flow through — the only granite cribstone bridge of its kind in the world.
All that shoreline means nearly every Harpswell home lives with salt air, wind, and weather off the water. We choose equipment and mounting locations accordingly, so systems on Orr's and Bailey Islands last as long as they should.
Local & Independent — Not a Franchise
Aces Highlands is a locally owned Portland, Maine company serving Harpswell — not a national franchise. Every technician is paid to solve the problem in front of them, not to hit an upsell quota. Earning the next call, not hitting a sales target, is the entire business plan.
How Central Air Conditioning Works
- Condenser — outside, rejects heat picked up indoors
- Compressor — pressurizes the refrigerant gas
- Evaporator coil — at the furnace, absorbs heat from indoor air
- Blower — pushes air across the cold coil
- Cool air — delivered through the ducts
Homeowner Guide
Central AC Installation: What to Know Before You Buy
Air conditioning used to be optional in Maine. Between hotter, more humid summers and homes built tighter for heating efficiency, it's become close to standard — but it's worth understanding what you're actually buying.
Read the Full GuideMore Heat Pumps & Mini-Splits
AC Installation is part of our full heat pumps & mini-splits lineup. Explore the details or browse everything we offer in Harpswell.
AC Installation DetailsAll Services in HarpswellService Info
Codes & Permits for AC Installation in Harpswell
In Harpswell, plumbing permits come from the Local Plumbing Inspector at the Town of Harpswell Code Enforcement Office (263 Mountain Rd, Harpswell, ME 04079, (207) 833-5771 (main) / (207) 387-8833 (direct)). With 5,031 residents, Harpswell is required to enforce the Maine Uniform Building and Energy Code (MUBEC). With land area of only about 24 square miles against over 100 square miles of water, an unusually large share of Harpswell's parcels are seasonal/shoreland properties subject to Maine's Shoreland Zoning setback and septic rules.
- The electrical circuit that feeds a new heat pump or AC condenser needs an electrical permit, issued by the Electricians' Examining Board or the town's own electrical inspector, before the wiring is installed or altered. maine.gov
- Efficiency Maine offers rebates of up to $9,000 on qualifying heat pumps, but the equipment must be installed by an Efficiency Maine Residential Registered Vendor for the homeowner to receive the rebate. efficiencymaine.com
- Anyone who connects or disconnects gauges or adds/removes refrigerant on a heat pump or air conditioner must hold EPA Section 608 technician certification; the credential does not expire once earned. epa.gov
How Aces Highlands Handles AC Installation in Harpswell
- 44% of Harpswell households still heat primarily with heating oil, so we size a AC installation around whatever is already running the house and tell you straight whether it is worth keeping as a cold-snap backup.
- We pull the electrical permit for the new circuit before touching the outdoor unit, and refrigerant handling stays inside EPA Section 608 the whole job.
- Efficiency Maine rebates only pay out when a Residential Registered Vendor did the install, so we confirm eligibility with you up front — you can check any installer's registration yourself before signing anything.
A 1757 meetinghouse on Harpswell Neck Road, one of the oldest surviving public buildings in the town.
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
Google reviews
What HVAC customers say
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.
Adam Ayan
10 months ago
Elijah and Highlands Heating & AC were super helpful! Boiler failed over the weekend and Elijah was very responsive and helpful, getting us up and running right away. I would recommend him at HH&AC highly!
Justin Funk
a year ago
We highly recommend Highlands Heating & AC. They are extremely responsive, knowledgeable and do great work. Our boiler stopped working and Elijah was quick to respond after hours on a Friday. He installed a new boiler and heat pump hot water heater.
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.
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.
Ruth Kirkwood
3 months ago
This company is excellent. They quickly and efficiently repaired the kitchen faucet that was loose.
AC Installation FAQs
How much does AC installation cost in Maine?
A single-zone ductless system — the most common way to add cooling to a Maine home — typically runs $4,000–$6,000 installed. Whole-home multi-zone heat pump systems cost more. Because these systems also heat, Efficiency Maine rebates on qualifying models often apply.
Is a heat pump or central air better for cooling?
For most Maine homes, a ductless heat pump wins: no ductwork required, higher efficiency, and it heats in winter as well as cools in summer. Central air only tends to make sense if your home already has good ductwork from a forced-air furnace.
Will a mini-split dehumidify my house?
Yes — properly sized, a mini-split removes humidity as it cools, and most models also have a dedicated dry mode for muggy days that are not especially hot. Oversized systems dehumidify poorly, which is why we size from a load calculation.
How long does AC installation take?
Single-zone installations are typically completed in one day. Multi-zone or whole-home systems take two to three days, plus any electrical panel work, which our licensed electricians handle within the same project.
Do I need an electrical upgrade to add AC?
Sometimes. Each outdoor unit needs a dedicated circuit, and older 100-amp panels may not have the capacity. We are a licensed Maine electrical contractor as well as an HVAC company, so we evaluate your panel during the estimate and handle any upgrade in-house.
More Services in Harpswell
Aces Highlands handles HVAC, plumbing, and electrical for Harpswell homeowners. Here is more of what we do nearby.
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Furnace Installation in HarpswellNeed AC Installation in Harpswell?
Call our Harpswell team or get a free quote. We will get you scheduled and take care of it right the first time.
More Ways We Can Help
Google ReviewsServices
39Our team also covers related services across Greater Portland, such as…
All ServicesHeat Pumps & Mini-SplitsHVAC ServicesBoilers & Hydronic HeatingFurnace Repair & InstallationResidential PlumbingWater HeatersElectrical ServicesHeat Pump InstallationHeat Pump RepairHeat Pump MaintenanceDuctless Mini-SplitsAC InstallationAC RepairBoiler InstallationBoiler RepairBoiler MaintenanceRadiant Floor HeatingFurnace InstallationFurnace RepairFurnace MaintenanceLeak Detection & RepairFixture InstallationDrain CleaningSewer Line Repair & ReplacementTank Water HeatersTankless Water HeatersWater Heater RepairPanel UpgradesWiring & RewiringOutlet & Switch InstallationLighting InstallationEV Charger InstallationGenerator InstallationElectrical Repair & TroubleshootingEmergency ServicesEmergency Heating RepairEmergency PlumberEmergency Electrician
Service Areas
48You will find our trucks in communities including…
Portland, MaineSouth Portland, MaineScarborough, MaineWestbrook, MaineGorham, MaineFalmouth, MaineCape Elizabeth, MaineCumberland, MaineWindham, MaineStandish, MaineGray, MaineNew Gloucester, MaineRaymond, MaineNorth Yarmouth, MaineYarmouth, MaineFreeport, MainePownal, MaineBridgton, MaineBrunswick, MaineHarpswell, MaineAugusta, MaineWinthrop, MaineGardiner, MaineHallowell, MaineTopsham, MaineBath, MaineLewiston, MaineAuburn, MaineLisbon, MainePoland, MaineTurner, MaineSabattus, MaineBiddeford, MaineSaco, MaineOld Orchard Beach, MaineKennebunk, MaineKennebunkport, MaineWells, MaineKittery, MaineYork, MaineBuxton, MaineWaterboro, MaineBerwick, MaineSouth Berwick, MaineEliot, MaineNorth Berwick, MaineLebanon, MaineSanford, Maine
Guides & Tips
8We share practical advice on our blog, including…
HVAC & Plumbing BlogWhat to Do When Your Heat Goes Out in WinterWhy Your Heat Pump Is Freezing Up — and How to Fix ItTankless vs. Tank Water Heater: Which Is Best for Your Maine Home?How Much Does a Heat Pump Cost in Maine? (Plus Efficiency Maine Rebates)Heat Pump vs. Furnace: Which Is Right for Your Maine Home?5 Signs Your Boiler Needs ReplacementSigns Your Electrical Panel Needs an Upgrade
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