
Ductless Mini-Splits in Augusta, Maine
No Ductwork Required · Zone-by-Zone Control · Whisper-Quiet Operation
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- Licensed & insured
- Since 2019
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Ductless Mini-Splits for Augusta Homeowners

Aces Highlands handles ductless mini-splits for homeowners throughout Augusta. We work out of 508 Riverside St Unit 1 in Portland, a short drive into Kennebec County, so response times stay quick and every job benefits from knowing the local housing stock and code requirements.
Ductless mini-split systems provide efficient heating and cooling without the need for ductwork. Aces Highlands installs single and multi-zone mini-split systems for homes that need targeted comfort in specific rooms or areas.
Mini-splits are ideal for additions, finished basements, garages, bedrooms over garages, and older homes without existing ductwork. Each indoor unit operates independently, giving you zone-by-zone temperature control and eliminating the energy waste of heating or cooling unoccupied rooms. If your home also needs new wiring to support the installation, we handle that too.
We install wall-mounted, ceiling cassette, and floor-mounted indoor units depending on your space and preferences. Each installation includes proper sizing, clean line routing, and thorough testing to ensure optimal performance.
Modern ductless systems operate at whisper-quiet levels and include features like programmable schedules, Wi-Fi control, and advanced filtration. We help you choose the right configuration for your home and budget. Explore our financing options to make your mini-split installation affordable.
Why Augusta Calls Aces Highlands
- Based just outside Augusta and out on Kennebec County calls every day
- No scare tactics — just an accurate diagnosis and a price that holds
- A short wait for a truck, not a long one — most jobs move fast
- Fully licensed, fully insured; Google reviewers back up the work
Augusta Homes and What They Need
Census estimates put Augusta's median home at 1965, with close to 29 percent of the city's housing built before 1940 and nearly 45 percent before 1960. As the state capital, Augusta's stock runs from 19th-century construction near downtown and the Kennebec River to mid-century development further from the center, which means the oldest wiring and piping tends to cluster in the historic core. A rewiring project near downtown Augusta usually starts with figuring out what is actually behind the plaster before any quote gets written.
Heating and Cooling in Augusta
About 59 percent of Augusta households heat primarily with fuel oil, roughly 15 percent with utility gas from Summit Natural Gas of Maine, and 11 percent with electricity, per Census estimates. Sitting inland along the Kennebec River gives Augusta colder overnight lows than the coastal towns closer to Portland. Where a gas main already runs down the street, a furnace replacement is often the simplest swap; elsewhere we are just as likely to be quoting a heat pump alongside the existing oil system.

Getting to Know Augusta
Augusta has been Maine's seat of government since 1827, when lawmakers picked it over Portland, Brunswick and Hallowell; the State House architect Charles Bulfinch designed for the new capital opened in 1832 and still anchors the city today. Long before that, Fort Western went up on the Kennebec in 1754, and Benedict Arnold staged his ill-fated 1775 march on Quebec from its riverbank.
The city actually started life under a different name -- it incorporated as Harrington in February 1797, then renamed itself Augusta before the year was out. That is the kind of civic history that comes with being a state capital, and it is part of why so much of the historic core near the river still stands, complete with the wiring and plumbing generations of it have accumulated.
Local & Independent — Not a Franchise
Aces Highlands is a locally owned Portland, Maine company serving Augusta — not a national franchise. Our techs are paid to do the job right, not to upsell — no commission structure pushes them toward extra work. Getting invited back is the only metric that matters here.
How a Ductless Mini-Split Works
- Outdoor condenser — compressor and fan reject or absorb heat
- Line set — refrigerant lines run through the wall sleeve
- Wall sleeve — one small penetration, no ductwork needed
- Indoor wall head — coil and blower
- Warm air — directed by adjustable louvers
Homeowner Guide
Ductless Mini-Splits: Zoning, Placement & Multi-Unit Systems
A ductless mini-split solves a specific problem — heating and cooling a space with no existing ductwork — and it does it with more control over individual rooms than almost any ducted system can offer.
Read the Full GuideMore Heat Pumps & Mini-Splits
Ductless Mini-Splits is part of our full heat pumps & mini-splits lineup. Explore the details or browse everything we offer in Augusta.
Ductless Mini-Splits DetailsAll Services in AugustaService Info
Codes & Permits for Ductless Mini-Splits in Augusta
In Augusta, plumbing permits come from the Local Plumbing Inspector at the City of Augusta Bureau of Code Enforcement (16 Cony Street, Augusta, ME 04330, (207) 626-2365). With 18,899 residents, Augusta is required to enforce the Maine Uniform Building and Energy Code (MUBEC). Downtown Augusta sits at the head of tide on the Kennebec River and is vulnerable to spring flooding; the 1987 Maine 'Great Flood' affected the city.
- 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 Ductless Mini-Splits in Augusta
- Because roughly 59% of Augusta homes are already on heating oil, a ductless mini-splits usually means deciding how much of the heating load the new equipment should carry, not ripping out what's there.
- The circuit feeding the outdoor unit is permitted first, and all refrigerant handling follows EPA Section 608 rules — no shortcuts on either.
- We flag which Efficiency Maine incentives apply to a ductless mini-splits before work starts, since the rebate only applies through a Residential Registered Vendor.
A Kennebec River bridge in downtown Augusta, near the historic Old Fort Western site.
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
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.
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.
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
Ductless Mini-Splits FAQs
Can a mini-split heat a room all winter in Maine?
Yes — cold-climate mini-splits are rated to keep producing heat at -13°F and below, and Maine homes run tens of thousands of them through every winter. Correct sizing and mounting the outdoor unit above snow line are what make the difference.
How much does a ductless mini-split cost installed?
A quality single-zone installation typically runs $4,000–$6,000. Multi-zone systems cost more depending on the number of indoor heads. Efficiency Maine rebates on qualifying systems reduce the net cost, and we quote firm prices up front.
Are mini-splits noisy?
No — modern indoor heads run at whisper-quiet levels on low fan speeds, quieter than a refrigerator, and the compressor noise stays outside. If a mini-split is loud, something is wrong with it.
Do mini-splits need maintenance?
Yes: rinse the indoor filters every few weeks during heavy use, and have the system professionally cleaned and checked once a year — coils, blower wheel, refrigerant charge, condensate drain, and defrost operation.
How long does installation take?
A typical single-zone installation is finished in one day, including electrical connection and full commissioning. Multi-zone projects usually take two to three days.
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Radiant Floor Heating in AugustaNeed Ductless Mini-Splits in Augusta?
Call our Augusta team or get a free quote. We will get you scheduled and take care of it right the first time.
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