
Furnace Installation in Eliot, Maine
High-Efficiency Models · Proper Sizing · Ductwork Inspection Included
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- Licensed & insured
- Since 2019
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Furnace Installation for Eliot Homeowners

Aces Highlands handles furnace installation for homeowners throughout Eliot. We work out of 508 Riverside St Unit 1 in Portland, a short drive into York County, so response times stay quick and every job benefits from knowing the local housing stock and code requirements.
When it is time for a new furnace, Aces Highlands helps you choose and install a high-efficiency system that delivers dependable heat and lower energy costs. Every installation includes proper sizing, clean ductwork connections, and thorough testing.
We install oil, propane, and natural gas furnaces from trusted brands. Modern high-efficiency furnaces can operate at 95% efficiency or higher, meaning more of your fuel dollar goes toward heating your home instead of going up the chimney. You might also want to consider a heat pump system for even greater efficiency and year-round comfort.
Proper sizing is critical for furnace performance. An oversized furnace short-cycles and creates temperature swings, while an undersized unit runs constantly without reaching comfortable temperatures. We perform a load calculation to determine the right size for your home.
Our furnace installations include removal of the old unit, new furnace installation, ductwork inspection and connection, thermostat setup, and a complete system test. Older homes may also benefit from an electrical panel upgrade to support the new system. We make sure everything is working perfectly before we leave.
Why Eliot Calls Aces Highlands
- Close enough to Eliot for a fast response, local enough to know the town
- 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
- Fully licensed, fully insured, with a track record of Google reviews from real jobs
Eliot Homes and What They Need
Eliot's median home was built in 1979, with about a quarter of housing predating 1940, reflecting a town that grew substantially from roughly 2,500 residents in 1950 to over 6,700 by 2020. That range of construction eras means service calls here run from vintage farmhouse wiring to routine work on newer subdivisions.
Heating and Cooling in Eliot
About 62 percent of Eliot households heat mainly with fuel oil, with bottled or tank propane at 21 percent and electricity at 7 percent; there is no confirmed natural gas utility reaching Eliot itself, even though neighboring Kittery has gas service. A heat pump paired with the existing oil system is a common upgrade here.

Getting to Know Eliot
Eliot incorporated as its own town on March 1, 1810, and today borders three New Hampshire communities -- Dover, Portsmouth and Newington -- across the Piscataqua River, along with South Berwick and York on the Maine side. The town is also home to Green Acre, a historic Bahá'í school property.
Eliot's population has grown steadily from around 1,650 residents in 1810 to over 6,700 by 2020, with most of that growth landing in the second half of the 20th century. The town is now extending municipal water and sewer service along the Route 236 corridor under a tax-increment financing district.
Local & Independent — Not a Franchise
Aces Highlands answers to Eliot homeowners directly, not a franchise office somewhere else in the country. Our techs are paid to do the job right, not to upsell — no commission structure pushes them toward extra work. 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 Installation: Sizing, Ductwork & Venting
A furnace replacement is a chance to fix problems the original installation may have never addressed — most of which live in the ductwork, not the furnace cabinet.
Read the Full GuideMore Furnace Repair & Installation
Furnace Installation is part of our full furnace repair & installation lineup. Explore the details or browse everything we offer in Eliot.
Furnace Installation DetailsAll Services in EliotService Info
Codes & Permits for Furnace Installation in Eliot
In Eliot, plumbing permits come from the Local Plumbing Inspector at the Eliot Code Enforcement Office (Shelly Bishop, Code Enforcement Officer / Health Officer) (1333 State Road, Eliot, ME 03903, 207-439-1813 Ext. 110). With 7,146 residents, Eliot is required to enforce the Maine Uniform Building and Energy Code (MUBEC). The town is actively extending public water and sewer lines along the Route 236 corridor under a TIF district, so utility availability differs by neighborhood.
- 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
- Propane and natural gas equipment and dispensing installations in Maine must comply with NFPA 54 (National Fuel Gas Code) and NFPA 58 (Liquefied Petroleum Gas Code). maine.gov
- Maine's adopted 2021 International Mechanical Code (part of MUBEC) sets installation, clearance, and venting requirements for furnaces in municipalities that enforce the code. maine.gov
How Aces Highlands Handles Furnace Installation in Eliot
- With 62% of Eliot on heating oil, most furnace installation 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 installation is verifying CO alarm coverage near bedrooms, the standard Maine sets for homes with fuel-fired heat like a furnace.
A residential stretch of Route 103 in Eliot, near the town's village area.
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 Installation FAQs
How much does a new furnace cost installed?
Most residential furnace replacements run roughly $5,000–$9,000 installed depending on fuel type, efficiency class, and ductwork condition. We provide a firm written quote before ordering equipment, and financing is available.
How long does furnace installation take?
A straightforward replacement is completed in one day, with heat restored the same evening. Jobs involving significant ductwork, venting changes, or fuel conversion may take a second day.
What size furnace does my home need?
The size should come from a heat-loss calculation of your actual home — insulation, windows, air sealing, square footage — not from copying the old unit’s label. Oversized furnaces short-cycle and create temperature swings; undersized ones run constantly and still fall behind.
Should I replace my furnace with a heat pump instead?
Worth considering. Cold-climate heat pumps heat efficiently through most of a Maine winter and add air conditioning, and Efficiency Maine rebates may apply. Many homes pair a heat pump with a furnace as backup. We install both, so we can price the options against each other honestly.
Do you remove the old furnace?
Yes — removal and disposal of the old unit is included in every installation, along with a full cleanup of the work area.
More Services in Eliot
Aces Highlands handles HVAC, plumbing, and electrical for Eliot homeowners. Here is more of what we do nearby.
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Need Furnace Installation in Eliot?
Call our Eliot team or get a free quote. We will get you scheduled and take care of it right the first time.
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