Ductless Mini-Splits
Ductless mini-split heat pumps are the ideal solution for homes without existing ductwork, room additions, renovations, and spaces that need targeted temperature control. Southern Maine Heat Pumps specializes in installing whisper-quiet mini-split systems that provide both heating and cooling from a single, compact unit. With individual room control and non-invasive installation, mini-splits deliver exceptional comfort without the cost and disruption of adding ductwork to your home.
- 5.0 · 37 Google reviews
- Licensed & Insured
- 30+ Years Experience
- Efficiency Maine Registered Vendor
- Free Estimates
Many homes in the Gorham, Portland, Westbrook, and Scarborough areas were built long before central ductwork was standard. If your home relies on oil-fired boilers, electric baseboard heaters, or window air conditioning units, a ductless mini-split system is the most efficient and cost-effective path to modern comfort. At Southern Maine Heat Pumps, we have installed hundreds of ductless systems in older Cape Cod homes, colonials, and ranch-style houses throughout Cumberland County, giving homeowners year-round heating and cooling without tearing open walls to run ductwork.
Ductless mini-splits are also the go-to solution for room additions, finished basements, above-garage studios, and sunrooms that your existing HVAC system cannot adequately reach. A single indoor unit mounted on a wall or ceiling connects to a compact outdoor compressor through a small conduit, meaning installation typically takes just one day with minimal disruption. From Cape Elizabeth to inland communities, the result is whisper-quiet, zone-controlled comfort that lets you heat or cool only the rooms you are using, saving energy and money every month.
If you need to condition multiple rooms, consider upgrading to a multi-zone heat pump system that connects several indoor units to a single outdoor compressor. For whole-home comfort in homes with existing ductwork, our standard heat pump installation service may be the perfect fit. We also recommend pairing your mini-split with an annual maintenance plan to keep filters clean, refrigerant charged, and efficiency at its peak throughout every Maine season.
Perfect for Older Maine Homes
Many homes across Cumberland County were built in an era before central air conditioning and modern HVAC systems. These beautiful older homes—whether Cape Cods, colonials, or historic farmhouses—often lack the ductwork needed for traditional heating and cooling systems.
Ductless mini-split systems are the ideal solution for these homes. Without requiring invasive renovations or expensive ductwork installation, mini-splits deliver efficient, year-round comfort to Cumberland County homeowners who want modern climate control while preserving their home's character and avoiding major construction projects.
What We Offer
Ductless mini-splits deliver powerful, efficient comfort without the need for ductwork.
Perfect for homes without ductwork
Individual room temperature control
Whisper-quiet indoor units
Year-round heating and cooling
Non-invasive installation
Preserves home aesthetics
Our Mini-Splits Process
A streamlined process designed for minimal disruption and maximum comfort.
In-Home Assessment
We evaluate your space, insulation, and comfort goals to determine the best mini-split configuration.
Equipment Selection
We recommend the right unit size, style, and brand to match your room dimensions and heating needs.
Clean Installation
Our technicians mount indoor and outdoor units with minimal disruption, requiring only a small hole through the wall.
System Commissioning
We charge refrigerant lines, test heating and cooling modes, and verify optimal airflow and performance.
Owner Training
We walk you through remote control operation, scheduling features, and basic maintenance tips.
Why Choose Southern Maine Heat Pumps
Experienced mini-split installers serving Gorham, Portland, Scarborough, and all of Southern Maine.
No expensive ductwork required
Eliminates hot and cold spots
Lower energy costs than baseboard heat
Quick and clean installation process
Compact, modern indoor unit design
Qualifies for Efficiency Maine rebates
Ductless Mini-Split FAQs
Answers to the questions Southern Maine homeowners ask us most.
What is a ductless mini-split system?
A ductless mini-split is a heating and cooling system that connects a compact outdoor compressor to one or more indoor air-handling units through a small conduit, without requiring traditional ductwork. Each indoor unit provides independent temperature control for its zone, making mini-splits ideal for older Maine homes, additions, and rooms that existing HVAC systems cannot reach.
How many rooms can a mini-split heat and cool?
A single-zone mini-split heats and cools one room or open living area. For multiple rooms, a multi-zone system connects up to five indoor units to a single outdoor compressor, letting you control each room independently. Southern Maine Heat Pumps will assess your home and recommend the right configuration to keep every space comfortable.
Are ductless mini-split systems noisy?
Modern ductless mini-splits are remarkably quiet. Indoor units typically operate at around 19 to 32 decibels, which is quieter than a whisper. Outdoor compressors are also designed with noise-reducing technology and can be positioned away from bedrooms and living areas. Most homeowners say they forget the system is running.
Do mini-splits work for both heating and cooling?
Yes, ductless mini-splits provide both heating and air conditioning in one system. They use a reversing valve to switch between modes, delivering efficient warmth in winter and cool, dehumidified air in summer. The cold-climate models we install are rated to heat effectively even when outdoor temperatures drop well below zero, making them a true year-round solution for Southern Maine homes.
What Our Customers Say
5.0 ★ · 37 Google reviews. Here's what homeowners across Southern Maine say about the work.
“Nate did a nice, professional job cleaning and servicing our heat pump. We recommend and will use them again.”
Justin Spear
August 2026
“I had neglected annual service out of fear that it would cost a fortune but when I called to make the appointment, they let me know what was included in service and the cost- amazing! I appreciated that they were willing to service the system even though they did not do the installation.”
Ben Winkler
April 2026
“I contacted Southern Maine Heat Pumps to service my two units. The technicians who came out to service our heat pumps did an outstanding job. They were very thorough and helpful. They did a way better job than what I have experienced before with other maintenance services.”
Matt Heer
March 2026
“The technician arrived right on time, diagnosed the issue quickly, and had both of my heat pumps running smoothly in no time. They explained everything clearly and didn’t try to upsell unnecessary services — just honest, quality work. The price was fair, and the customer service was exceptional.”
Sarah McKay
November 2025
“I was being serviced by another local company as I had a crack in my Daikin Drip Pan. The previous company came out 3 times and finally diagnosed it. They ordered the part and then never showed up again even though the part was under warranty. I found Southern Maine on a google search and gave them a call. Sam called my back immediately.”
Big Pappa
August 2025
“Steve and Nate do an amazing job. I have been using this company for 5 years for heat pump cleaning, highly recommended.”
Sandra McKinney
November 2025
Explore Our Other Services
Southern Maine Heat Pumps offers a full range of heating and cooling solutions for your home or business.
Ready to Get Started?
Find out how a ductless mini-split can transform the comfort of your Southern Maine home. Our team will evaluate your space, recommend the ideal unit size and placement, and provide a transparent quote with all rebate information included. No pressure, no surprises.
Call us directly at (207) 317-1077 or fill out the form to get started.