
Heat Pump Repair in Lisbon, Maine
Accurate Diagnostics · Common Parts In Stock · All Brands Serviced
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- Licensed & insured
- Since 2019
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Heat Pump Repair for Lisbon Homeowners

Need heat pump repair in Lisbon? Aces Highlands runs out of 508 Riverside St Unit 1 in Portland and covers Androscoggin 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.
When your heat pump stops working or is not performing like it should, Aces Highlands provides fast, accurate diagnostics and honest repairs. We fix the actual problem — not just the symptoms.
Heat pump issues can range from simple fixes like a dirty filter or tripped breaker to more complex problems like refrigerant leaks, compressor failures, or control board malfunctions. Our technicians diagnose accurately the first time so you get the right repair without paying for unnecessary parts.
We service all major heat pump brands including GE, Hitachi, Mitsubishi, Daikin, Fujitsu, and LG. We carry common replacement parts to complete most repairs in a single visit. Regular heat pump maintenance can help prevent many common repair issues before they start.
If your heat pump is beyond repair or the cost of fixing it does not make sense, we will tell you honestly and help you evaluate replacement options.
Why Lisbon Calls Aces Highlands
- We run trucks through Lisbon and the rest of Androscoggin County routinely, not occasionally
- You get the real problem and a firm number, not a pitch for extras
- Fast turnaround — we get most jobs booked within days, not weeks
- Properly licensed and covered by insurance; Google reviewers back up the work
Lisbon Homes and What They Need
Lisbon's median home was built in 1973, notably newer than neighboring Lewiston or Auburn, with about 23 percent of units predating 1940 and 31 percent predating 1960 -- a mix of the old Worumbo Mill village core and later mid-to-late-20th-century growth around it. That newer housing still needs regular heat pump maintenance and system checkups as it ages.
Heating and Cooling in Lisbon
Lisbon leans heavily on delivered fuel: about 69 percent of households heat mainly with fuel oil, 14 percent with bottled or tank propane, and 8 percent with electricity, with no confirmed utility natural-gas distribution in town. That makes a boiler installation or oil-to-heat-pump conversion one of the more common calls we get here.

Getting to Know Lisbon
Lisbon grew up around the Worumbo Mill, a woolen manufacturer founded in 1864 that stayed a major local employer until it burned down in 1987. Three waterways run through town -- the Androscoggin River, the Sabattus River, and the Little River -- which shaped where the old mill village and its housing took root.
Lisbon is one of the few towns in the area that names its own Electrical Inspector directly on the town website, rather than routing everything through a general code office. It's also grown noticeably since the mill era: the median home here dates to 1973, meaningfully newer than the mill-city housing stock next door in Lewiston or Auburn.
Local & Independent — Not a Franchise
We are an independent, Portland-based company, not a franchise chain routing your Lisbon job to a call center. Our techs are paid to do the job right, not to upsell — no commission structure pushes them toward extra work. Earning the next call, not hitting a sales target, is the entire business plan.
How a Heat Pump Works
- Outdoor unit — fan and compressor extract heat from outside air
- Reversing valve — switches the system between heating and cooling
- Line set — carries hot, high-pressure refrigerant indoors
- Indoor coil — releases heat into the airstream
- Warm air — the blower delivers it to the room
Homeowner Guide
Common Heat Pump Failures and What They Usually Mean
Heat pump problems tend to fall into a short list of patterns. Knowing which one you're seeing helps set expectations before the technician even arrives.
Read the Full GuideMore Heat Pumps & Mini-Splits
Heat Pump Repair is part of our full heat pumps & mini-splits lineup. Explore the details or browse everything we offer in Lisbon.
Heat Pump Repair DetailsAll Services in LisbonService Info
Codes & Permits for Heat Pump Repair in Lisbon
In Lisbon, plumbing permits come from the Local Plumbing Inspector at the Code Enforcement, Town of Lisbon (Lisbon Town Offices, 300 Lisbon Street, Lisbon, ME 04250, 207-353-3000 ext. 108). With 9,711 residents, Lisbon is required to enforce the Maine Uniform Building and Energy Code (MUBEC). The town's sewer system is run directly by Lisbon's own Public Works department rather than a separate regional district, per the town's sewer rate/ordinance pages.
- 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
- 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
How Aces Highlands Handles Heat Pump Repair in Lisbon
- 69% of Lisbon households still heat primarily with heating oil, so we size a heat pump repair 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.
- Because Efficiency Maine ties its rebates to Residential Registered Vendor status, we go over what your project actually qualifies for before you commit a dollar.
A path near the Androscoggin River in the Lisbon Falls village area, once the site of the Worumbo textile mill.
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 HVAC customers say
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.
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.
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!
Jacqueline Vogeley
2 weeks ago
Great experience! Open, honest and efficient 🙌🏽 Job well done
Heat Pump Repair FAQs
Why is my heat pump covered in ice?
Light frost on the outdoor coil is normal — the unit runs periodic defrost cycles to clear it. Solid ice that never clears is not normal, and usually points to a failed defrost sensor or board, low refrigerant, or blocked airflow. Shut the unit off and have it diagnosed before the ice damages the fan or coil.
Why is my heat pump blowing cold air in heat mode?
Check the remote is actually in heat mode and the filters are clean first. If those are fine, the usual causes are low refrigerant from a leak, a failing reversing valve, or a compressor issue — all of which need a technician with gauges to confirm.
How much does heat pump repair cost?
Simple fixes like condensate clogs, sensors, or capacitors are commonly a few hundred dollars. Board replacements and refrigerant leak repairs cost more, and we always quote before we repair, so you can decide with the real number in front of you.
Do you service heat pumps you did not install?
Yes. We repair all major brands — GE, Hitachi, Mitsubishi, Daikin, Fujitsu, LG and others — regardless of who installed the system.
Is it worth repairing a 10-year-old heat pump?
Often yes, if the repair is minor and the system was installed well. Past 12–15 years or facing a compressor or major refrigerant repair, replacement usually makes more financial sense — especially with Efficiency Maine rebates lowering the cost of a new system. We give you both numbers and let you choose.
More Services in Lisbon
Aces Highlands handles HVAC, plumbing, and electrical for Lisbon homeowners. Here is more of what we do nearby.
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Boiler Repair in LisbonNeed Heat Pump Repair in Lisbon?
Call our Lisbon team or get a free quote. We will get you scheduled and take care of it right the first time.
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