Efficiency Maine rebate
$1,000–$2,400+
Rebates on qualifying new heat pump systems. As a Registered Vendor we file the paperwork for you.
Heat Pump Installation
in Portland, Maine
Portland & Southern MaineSouthern Maine Heat Pumps provides expert heat pump installation for new homes and retrofits throughout Southern Maine. Our certified technicians install high-efficiency ductless and ducted systems from Mitsubishi, Daikin, and Samsung, delivering year-round comfort and significantly lower energy bills. Whether you are building new or upgrading from oil, propane, or electric baseboard, we design and install a system sized perfectly for your home. Every installation is backed by our commitment to quality workmanship and customer satisfaction.
- 5.0 · 37 Google reviews
- Licensed & Insured
- 30+ Years Experience
- Efficiency Maine Registered Vendor
- Free Estimates
Rebates and financing we already publish
All rebates & financing →Financing
From 0% APR
Efficiency Maine Home Energy Loans up to $25,000 on new systems. Terms and fees on our financing page.
No obligation
Free estimates
Free in-home estimates on new systems, replacements and upgrades. You get the price in writing before any work begins.
Whether you live in Gorham, Portland, Scarborough, Windham, or anywhere across Cumberland County, upgrading to a heat pump is one of the smartest investments you can make for your home. At Southern Maine Heat Pumps, we specialize in designing and installing high-efficiency heat pump systems that keep your family comfortable through frigid Maine winters and humid summers alike. Our team has completed hundreds of installations throughout Cumberland County and beyond, and we understand the unique challenges that New England weather presents.
Modern heat pump technology has advanced dramatically, with cold-climate models now operating efficiently at temperatures well below zero. We install industry-leading systems from Mitsubishi, Daikin, and Samsung that are engineered for Maine's climate. Whether you are replacing an aging oil furnace, supplementing electric baseboard heat, or building a new home in South Portland or other Cumberland County communities, we will design a system tailored to your space and budget. Our installations are ENERGY STAR certified, and we guide you through every available rebate and incentive to maximize your savings.
Beyond traditional whole-home installations, we also offer ductless mini-split systems for targeted comfort and multi-zone configurations that let each family member control their own temperature. Pair your new heat pump with a heat pump water heater to electrify your home and slash your energy bills even further. And with our annual maintenance plans, your system will deliver peak performance for years to come.
Trusted Installation Across Cumberland County
From Portland to Gorham and every community in between, Southern Maine Heat Pumps has become the trusted name for professional heat pump installations across Cumberland County. Our expert technicians bring years of experience to every project, ensuring your new system is properly sized, expertly installed, and optimized for Maine's demanding climate.
We take pride in serving Cumberland County homeowners with the same level of care and attention to detail on every installation. Whether you're in a historic home downtown or a new construction in the suburbs, we deliver comfort solutions you can count on for years to come.
What does heat pump installation cost in Maine?
Typically $3,000–$8,000
Depends on system size, number of zones, and how the house is built. Efficiency Maine rebates of $1,000 to $2,400 or more can offset part of the cost. You get a written estimate before any work begins.
You get the price before any work begins. Call for a quote or send the form and we'll get back to you.
What We Offer
Every installation is customized to your home, your goals, and the Southern Maine climate.
Energy-efficient heating and cooling
Ductless and ducted options
Mitsubishi, Daikin, and Samsung systems
Sized and placed for optimal performance
ENERGY STAR certified installations
Efficiency Maine rebate assistance
Our Installation Process
From first call to final walkthrough, here is what you can expect when you choose Southern Maine Heat Pumps.
1
Free Consultation
We visit your home, assess your heating and cooling needs, and discuss your goals and budget.
2
System Design
Our team designs a custom system layout with the right equipment, placement, and zoning for your space.
3
Professional Installation
Our certified technicians install your system with care, keeping your home clean and protected throughout.
4
Testing & Walkthrough
We test every component, verify performance, and walk you through operation, controls, and maintenance.
5
Ongoing Support
We are always available for questions, maintenance, and warranty support long after installation day.
Why Choose Southern Maine Heat Pumps
Trusted by homeowners across Gorham, Portland, Scarborough, and beyond.
Lower energy bills year-round
Whisper-quiet operation
Zone-by-zone temperature control
Reduces carbon footprint
Qualifies for rebates and tax credits
Increases home value
Heat Pump Installation FAQs
Answers to the questions Southern Maine homeowners ask us most.
How much does heat pump installation cost in Maine?
Heat pump installation in Maine typically ranges from $3,000 to $8,000 depending on the system size, number of zones, and complexity of the installation. Efficiency Maine rebates can offset $1,000 to $2,400 or more of the cost, and federal tax credits may further reduce your out-of-pocket expense. Contact Southern Maine Heat Pumps for a free in-home estimate tailored to your specific situation.
What size heat pump do I need for my home?
The right heat pump size depends on your home's square footage, insulation levels, number of rooms, and heating goals. An undersized unit will struggle in cold weather, while an oversized system wastes energy and short-cycles. Our technicians perform a detailed load calculation during your free consultation to recommend the ideal system size for your Southern Maine home.
How long does heat pump installation take?
Most single-zone heat pump installations are completed in one day, while multi-zone systems typically take one to two days. Our team handles everything from mounting the indoor and outdoor units to running refrigerant lines and testing the system. We schedule installations at your convenience and leave your home clean when the job is done.
Do heat pumps work in Maine winters?
Yes, modern cold-climate heat pumps are specifically engineered to operate efficiently at temperatures well below zero degrees Fahrenheit. The Mitsubishi, Daikin, and Samsung systems we install are rated for Maine's harshest winter conditions and are used by thousands of homeowners throughout the state. Many customers use their heat pump as their primary heating source year-round.
Do you install heat pumps on systems another company sold?
Yes. We install Mitsubishi, Daikin, and Samsung systems we specify, and we also replace or add onto equipment another contractor put in. The free estimate covers what is already there and what should go in next.
What Our Customers Say
5.0 ★ · 37 Google reviews. Here's what homeowners across Southern Maine say about the work.
“I could not recommend this company enough. Their pricing, installation, service, and maintenance are top notch. They are quick to respond to calls and e-mails and service calls/maintenance happen quickly as well.”
Josh Vaughn
August 2025
“SMHP did a great job installing heat pumps in our new home and we highly recommend them for their professionalism, technical knowledge, and value. It’s clear Steve and Nate both know the Mitsubishi products well. Through the brutal negative temps this winter, our home has stayed uniformly warm and incredibly comfortable.”
Garrett White
February 2026
“Very knowledgeable and professional staff. Quick high quality work. Easy to work with, efficient. Needed 2 heat pumps and 4 heads installed. They were able to start 2 months quicker than anyone else I called.”
Benjamin McWilliams
April 2026
“Southern Maine Heat Pumps installed 2 heat pumps for me; and they helped file the Maine Efficiency rebates. They were professional and friendly. They are always available to answer my operating questions.”
Chris Paydos
August 2025
“Steve and team have been extremely accommodating and professional with the heat pumps and water heater we’ve had installed! Will happily continue working with them in the future!”
Steve Das
December 2025
“Had 2 heat pumps and a water heater heat pump installed and happy with everything! Very nice people to deal with, highly recommend!”
Bobby Dore
August 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?
Schedule your free in-home consultation today. Our team will assess your space, recommend the perfect heat pump system, and walk you through all available rebates and financing options. Homeowners across Southern Maine trust us for honest advice and expert installation.
Need it today?Call (207) 317-1077
Need it today?Call (207) 317-1077