
Furnace Repair in Windham, Maine
Same-Week Service · All Fuel Types · Honest Diagnostics
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- Since 2019
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Furnace Repair for Windham Homeowners

Windham homeowners call Aces Highlands for furnace repair because we are close by, based at 508 Riverside St Unit 1 in Portland, and out on Cumberland County roads every day — we know this area's housing, weather and permit process cold.
A broken furnace in Maine winter is an emergency. Aces Highlands provides fast, accurate furnace repair with honest diagnostics — we fix what actually needs fixing and nothing more.
Common furnace problems include no heat, blower issues, ignition failures, strange noises, short-cycling, and thermostat malfunctions. Our technicians can quickly identify the root cause and get your heat back on.
We repair oil, propane, and natural gas furnaces from all major manufacturers. We carry common parts like ignitors, flame sensors, blower motors, and control boards to complete most repairs in a single visit. Regular furnace maintenance can prevent many of these common issues.
If your furnace is at the end of its life and repair costs do not make sense, we will tell you honestly and help you evaluate replacement options. We never pressure you into a decision.
Why Windham Calls Aces Highlands
- Based just outside Windham and out on Cumberland County calls every day
- Diagnostics come first, upsells do not — the invoice matches the quote
- Scheduling that moves quickly, because a home without heat or water cannot wait
- Licensed and insured, and reviewed by real customers on Google
Windham Homes and What They Need
Windham is the largest town of these five, with about 19,000 residents, and its housing reflects decades of steady growth. Census estimates put the median home at 1985; about 42 percent of homes predate 1980 and about 12 percent predate 1940, much of it in the old villages of South Windham, Windham Center and Windham Hill, while about 12 percent have been built since 2010. Roughly one in eleven housing units is held for seasonal or occasional use, clustered on the shores of Sebago Lake, Little Sebago Lake and Highland Lake, and the town's own planning documents note that many former camps are now year-round homes reached by old gravel roads. Those conversions are where the problems concentrate: uninsulated crawlspaces, supply lines run for summer use, undersized wiring and heat added room by room. Ductless mini-splits suit converted camps because they need no ductwork.
Heating and Cooling in Windham
Windham relies heavily on delivered fuel. Census estimates show fuel oil or kerosene in about 58 percent of occupied homes and bottled propane in about 21 percent, with electricity at about 10 percent and wood at about 5 percent. Maine Natural Gas is authorized to serve Windham, but utility gas reaches only about 4 percent of homes, mostly near its lines, so most households are buying oil or propane by the delivery. Being inland and away from the ocean's moderating effect, Windham sees colder winter nights than coastal Falmouth or Cape Elizabeth, and exposed lakefront homes take the wind off open water. That is a strong case for cold-climate heat pumps rated for sustained output well below zero, with the existing boiler or furnace kept for the coldest stretches; the same units cover summer cooling in homes that never had central air.

Getting to Know Windham
Windham was settled as New Marblehead — granted in 1734 to families from Marblehead, Massachusetts — and incorporated under its current name in 1762. The town sits beside Sebago Lake, the deepest lake in New England at 316 feet, which supplies drinking water to the Greater Portland region — roughly one in five Mainers.
Windham is one of the fastest-growing corners of the Lakes Region, and its mix of new construction and older lake-area homes keeps our installers busy with everything from full heat pump systems to seasonal camp conversions.
Local & Independent — Not a Franchise
Aces Highlands is independently owned and based in greater Portland, with no franchise territory map dictating how Windham gets treated. Every technician is paid to solve the problem in front of them, not to hit an upsell quota. That is how we keep customers calling back, one honest job at a time.
How a Furnace Works
- Return air — pulled in through the filter
- Blower — pushes air across the heat exchanger
- Burners — ignite to heat the exchanger
- Heat exchanger — transfers heat without mixing combustion gases
- Supply air — warm air delivered to the home
Homeowner Guide
Furnace Won't Heat? Here's How We Narrow It Down
Furnace calls almost always start the same way — "it's not blowing warm air" — but the actual cause splits into a handful of distinct failure points.
Read the Full GuideMore Furnace Repair & Installation
Furnace Repair is part of our full furnace repair & installation lineup. Explore the details or browse everything we offer in Windham.
Furnace Repair DetailsAll Services in WindhamService Info
Codes & Permits for Furnace Repair in Windham
In Windham, plumbing permits come from the Local Plumbing Inspector at the Windham Code Enforcement Department (8 School Road, Windham, ME 04062, 207-894-5960 ext. 1). With 18,434 residents, Windham is required to enforce the Maine Uniform Building and Energy Code (MUBEC). Little Sebago Lake extends from western Gray into northern Windham, with public access from Mount Hunger Road — an area with lake-shore camps/seasonal homes (Wikipedia: Little Sebago Lake).
- A carbon monoxide detector must be present in each area within or giving access to a bedroom in the applicable occupancy types under 25 MRSA §2468, regardless of whether the furnace burns oil or gas. mainelegislature.org
- Oil-fired furnaces fall under the same Maine Fuel Board Oil Burner Technician licensing (Apprentice/Journeyman/Master) as oil boilers. maine.gov
- Installing, repairing, or servicing a propane or natural gas furnace requires a Maine Fuel Board Propane and Natural Gas Technician license, with separate authorizations depending on BTU size and scope of work. mainelegislature.org
How Aces Highlands Handles Furnace Repair in Windham
- Maine Natural Gas Corporation has mains through parts of Windham, so a gas-fired swap is on the table wherever a line already reaches the street; off that grid the choice is oil, propane or a heat pump.
- With 58% of Windham on heating oil, most furnace repair calls here follow NFPA 31 (oil), NFPA 54/58 (gas/propane) or NFPA 211 (venting), depending on what's already installed.
- Part of finishing a furnace repair is verifying CO alarm coverage near bedrooms, the standard Maine sets for homes with fuel-fired heat like a furnace.
A road in Windham Center, near the town's municipal offices.
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
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.
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.
Jacqueline Vogeley
2 weeks ago
Great experience! Open, honest and efficient 🙌🏽 Job well done
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.
Furnace Repair FAQs
My furnace stopped working — what should I check first?
Check the thermostat batteries and settings, the furnace power switch (looks like a light switch on or near the unit), the breaker, and the filter — a fully clogged filter can trip the furnace’s safety limit. On oil units, confirm you have fuel and press the reset button only once. If none of that works, call us.
Why does my furnace turn on and off every few minutes?
Short-cycling is most often a clogged filter causing overheating, a dirty flame sensor dropping the flame signal, or an oversized furnace reaching temperature too fast. It wastes fuel and wears components, so it is worth fixing promptly.
How much does furnace repair cost?
Common repairs — flame sensors, ignitors, capacitors — typically run in the low hundreds. Blower motors and control boards cost more. We quote the exact price after diagnosis and before any repair, so there are no surprises on the invoice.
When is a furnace not worth repairing?
When it is past 15 years and facing a major repair like a heat exchanger, blower motor, or control board, replacement usually wins the math — especially counting the fuel savings of a modern high-efficiency unit. A cracked heat exchanger on an older furnace is almost always a replacement, for safety reasons.
Do you repair oil furnaces?
Yes — oil, propane, and natural gas. Our team holds a Maine Master Oil Burner license, so oil-fired equipment is core work for us, not an afterthought.
More Services in Windham
Aces Highlands handles HVAC, plumbing, and electrical for Windham homeowners. Here is more of what we do nearby.
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Tank Water Heaters in WindhamNeed Furnace Repair in Windham?
Call our Windham team or get a free quote. We will get you scheduled and take care of it right the first time.
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