Ductless Mini-Split Systems
- No Ductwork Required
- Zone-by-Zone Control
- Whisper-Quiet Operation
Our Approach to Ductless Mini-Splits
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.
Single-Zone or Multi-Zone: Which Do You Need?
A single-zone system — one outdoor unit feeding one indoor head — is the right answer more often than the industry likes to admit. It is the most efficient, most reliable configuration, and it is perfect for the one space that never stays comfortable: the bedroom over the garage, the finished basement, the sunroom, the addition the old system never reached.
Multi-zone systems (one outdoor unit feeding two to five heads) make sense when you are conditioning several rooms and outdoor placement is limited, but they carry a trade-off: every head depends on one compressor, and lightly-loaded multi-zone systems can short-cycle. Sometimes two separate single-zone units beat one multi-zone on both efficiency and redundancy. We run the load numbers for your actual rooms and tell you which layout wins — we sell you the configuration your house needs, not the biggest system quote we can write.
What Do Ductless Mini-Splits Cost to Install?
Single-zone installations typically run $4,000–$6,000 installed, with multi-zone systems scaling up from there by head count and line-set complexity. Efficiency Maine rebates on qualifying cold-climate models take a real bite out of those numbers, and financing covers the rest. Operating cost is where mini-splits shine: zone-by-zone control means you stop paying to heat and cool rooms nobody is in.
Local & Independent — Not a Franchise
Aces Highlands is a locally owned Portland, Maine company — not a national franchise. Our technicians are not commissioned salespeople and nobody here is required to upsell you anything. We do the work you called us for, do it right, and earn the next call. That is the whole business model.
More Heat Pumps & Mini-Splits Services
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.
Request Service
Fill out the form below to request an estimate or schedule service.
“*” indicates required fields
More Ways We Can Help
Services
Explore the rest of what we do, from…
Service Areas
We proudly serve communities throughout Southern Maine, including…
Guides & Tips
Learn more in our blog, with articles such as…
Company
A few more places to begin include…