
Furnace Maintenance in Kittery, Maine
Filter Replacement · Safety Inspection · Efficiency Check
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Furnace Maintenance for Kittery Homeowners

Kittery sits in York County, part of the territory Aces Highlands covers out of 508 Riverside St Unit 1 in Portland every week — so a call for furnace maintenance gets a technician who already knows the local housing and codes, not a first-timer.
Regular furnace maintenance is the best way to prevent unexpected breakdowns and keep your heating bills in check. Aces Highlands provides thorough annual tune-ups that keep your furnace running safely and efficiently.
Our furnace maintenance service includes filter replacement, burner cleaning and inspection, heat exchanger inspection, safety control testing, blower motor lubrication, thermostat calibration, and a complete combustion analysis.
A cracked heat exchanger is one of the most serious furnace safety issues — it can allow carbon monoxide to enter your living space. Our maintenance inspection includes a careful check for this and all other safety concerns. We also recommend having your boiler maintained at the same time if your home has both systems.
Schedule your furnace tune-up in early fall before the heating season. Catching small issues early prevents mid-winter breakdowns and keeps your system running at peak efficiency all season long. Contact us to book your annual tune-up.
Why Kittery Calls Aces Highlands
- We run trucks through Kittery and the rest of York County routinely, not occasionally
- We tell you what is actually wrong and what it costs, plainly, every time
- A short wait for a truck, not a long one — most jobs move fast
- Licensed and insured — neighbors in Kittery leave us reviews on Google
Kittery Homes and What They Need
Kittery has the oldest housing stock of the York County coastal towns Aces serves, with a median build year of 1965 and about 25 percent of homes predating 1940 (46 percent predating 1960) -- fitting for a town that has been incorporated since 1647. On homes this old, a rewiring project often turns up several generations of electrical work layered on top of each other.
Heating and Cooling in Kittery
Fuel oil heats about 60 percent of Kittery households, the highest share of any York County town Aces studied, with bottled or tank propane at 18 percent and electricity at 13 percent; Unitil also supplies natural gas to parts of town. That heavy oil dependence makes Kittery a strong market for pairing existing systems with a heat pump.

Getting to Know Kittery
Kittery was incorporated in 1647, making it the oldest incorporated town in Maine, and sits as the state's southernmost town, across the Piscataqua River from Portsmouth, New Hampshire. The Portsmouth Naval Shipyard, established in 1800 on Kittery's Seavey's Island, was the U.S. Navy's very first federal navy yard.
During the Revolutionary War, some of the first vessels ever built for the U.S. Navy, including the USS Ranger under John Paul Jones, were constructed right on Kittery's Badger's Island -- a history that still shapes the town's identity along the water.
Local & Independent — Not a Franchise
Aces Highlands answers to Kittery 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. Getting invited back is the only metric that matters here.
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
Annual Furnace Maintenance: The Real Checklist
Furnace maintenance is the most commonly skipped HVAC service, largely because a furnace can run for years with no visible sign it's overdue — until the one cold morning it doesn't.
Read the Full GuideMore Furnace Repair & Installation
Furnace Maintenance is part of our full furnace repair & installation lineup. Explore the details or browse everything we offer in Kittery.
Furnace Maintenance DetailsAll Services in KitteryService Info
Codes & Permits for Furnace Maintenance in Kittery
In Kittery, plumbing permits come from the Local Plumbing Inspector at the Kittery Code Enforcement Department (200 Rogers Road, Kittery, ME 03904, 207-475-1304). With 10,473 residents, Kittery is required to enforce the Maine Uniform Building and Energy Code (MUBEC). The Portsmouth Naval Shipyard occupies Seavey's Island within Kittery's boundaries and is a major regional employer.
- 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 Maintenance in Kittery
- Unitil (Northern Utilities) has mains through parts of Kittery, 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.
- About 60% of Kittery homes heat with heating oil today. Oil equipment is installed to NFPA 31, gas and propane to NFPA 54/58, and every vent or chimney tie-in to NFPA 211.
- Once a furnace maintenance is finished, we check that carbon monoxide detectors are actually present near the bedrooms — Maine law requires them in any home heated by fuel-burning equipment.
A well-known outdoor-outfitter store on U.S. Route 1, a longtime landmark for travelers entering Maine.
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.
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.
Furnace Maintenance FAQs
How often should a furnace be serviced?
Once a year — ideally in late summer or early fall before the heating season. Oil furnaces especially should never skip a year, since soot buildup and nozzle wear steadily degrade efficiency and reliability.
How often should I change my furnace filter?
Check monthly during heating season and replace every 1–3 months depending on filter type, pets, and dust. A clogged filter is the single most common cause of furnace short-cycling and overheat shutdowns we see.
How much does a furnace tune-up cost?
Typically $150–$400 depending on fuel type, with oil furnaces toward the top because the service includes a new nozzle, oil filter, and full soot cleaning. We quote up front and run seasonal specials on our coupons page.
What happens if I skip furnace maintenance?
Efficiency drops as dirt accumulates, small failures go unnoticed until they strand you without heat, manufacturer warranty coverage can lapse, and safety issues — cracked heat exchangers, venting problems, CO — go undetected. Skipping maintenance does not save money; it defers it with interest.
Will you inspect for carbon monoxide?
Yes. Every tune-up includes a heat exchanger inspection and a combustion analysis that measures CO directly. We also recommend every home with fuel-burning equipment keep working CO detectors on each level.
More Services in Kittery
Aces Highlands handles HVAC, plumbing, and electrical for Kittery homeowners. Here is more of what we do nearby.
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Tankless Water Heaters in KitteryNeed Furnace Maintenance in Kittery?
Call our Kittery team or get a free quote. We will get you scheduled and take care of it right the first time.
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