
Furnace Installation in Saco, Maine
High-Efficiency Models · Proper Sizing · Ductwork Inspection Included
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- Licensed & insured
- Since 2019
Efficiency Maine Registered Vendor- 100% Satisfaction Guarantee
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Furnace Installation for Saco Homeowners

Saco 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 installation gets a technician who already knows the local housing and codes, not a first-timer.
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 Saco Calls Aces Highlands
- A York County crew that already knows Saco's streets and housing stock
- A straight diagnosis and a clear price before we touch anything — no upsell
- Scheduling that moves quickly, because a home without heat or water cannot wait
- Properly licensed and covered by insurance, and reviewed by real customers on Google
Saco Homes and What They Need
Saco's housing stock is newer than many of its York County mill-town neighbors: the median home was built in 1982, and only about 22 percent of units predate 1940, with roughly 32 percent predating 1960. That newer mix is one reason we see more calls for routine system upkeep here than for full rewiring jobs.
Heating and Cooling in Saco
About 60 percent of Saco households heat mainly with fuel oil, with electricity at 14 percent and bottled or tank propane at 14 percent; Unitil also serves parts of the city with natural gas. Where gas is available, a gas boiler installation is often the simplest replacement path for an aging oil system.

Getting to Know Saco
Saco was settled in 1631 and cycled through a few names over the centuries, including Winter Harbor and Pepperrellborough, before settling on Saco in 1805 and becoming a city in 1867. It elected its first female mayor, Jodi MacPhail, in November 2023.
The city's York Manufacturing Company, once a major textile employer, closed for good in 1958, and Saco has grown well beyond its mill-town roots since -- it's now part of the Portland-South Portland-Biddeford metro area and home to Thornton Academy and Ferry Beach State Park.
Local & Independent — Not a Franchise
We are an independent, Portland-based company, not a franchise chain routing your Saco job to a call center. Technicians are not on commission, so the recommendation you get is the one your house actually needs. Earning the next call, not hitting a sales target, is the entire business plan.
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 Saco.
Furnace Installation DetailsAll Services in SacoService Info
Codes & Permits for Furnace Installation in Saco
In Saco, plumbing permits come from the Local Plumbing Inspector at the Saco Code Enforcement Department (300 Main Street, Saco, ME 04072, (207) 284-6983). With 20,819 residents, Saco is required to enforce the Maine Uniform Building and Energy Code (MUBEC). Maine's Mandatory Shoreland Zoning Act applies along the Saco River and Saco's Atlantic coastline, restricting structure placement near the water.
- 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
- 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
How Aces Highlands Handles Furnace Installation in Saco
- Where Unitil (Northern Utilities) serves the street in Saco, gas equipment is usually the simplest furnace installation option; elsewhere we quote oil, propane and heat-pump alternatives side by side.
- About 60% of Saco 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.
- 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.
Saco's city hall on Main Street in the downtown commercial district, a short walk from the Saco River falls.
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
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.
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!
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 Saco
Aces Highlands handles HVAC, plumbing, and electrical for Saco homeowners. Here is more of what we do nearby.
Furnace Repair in Saco
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Fixture Installation in SacoDrain Cleaning in Saco
Drain Cleaning in SacoSewer Line Repair & Replacement in Saco
Sewer Line Repair & Replacement in SacoNeed Furnace Installation in Saco?
Call our Saco team or get a free quote. We will get you scheduled and take care of it right the first time.
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