
Heat Pump Water Heaters
Heat pump water heaters use the same proven technology as air-source heat pumps to heat your water two to three times more efficiently than traditional electric water heaters. Southern Maine Heat Pumps installs and services heat pump water heaters that deliver reliable hot water on demand while slashing your electricity costs. These units are eligible for substantial Efficiency Maine rebates and federal tax credits, making the upgrade more affordable than ever.
Heating water accounts for nearly 20 percent of the average Maine household's energy bill. If you are still relying on a conventional electric resistance water heater in your Gorham, Portland, Saco, or Biddeford home, you are paying two to three times more than you need to. Heat pump water heaters use the same proven heat-exchange technology found in air-source heat pumps, extracting warmth from the surrounding air and transferring it into your water tank. The result is reliable hot water at a fraction of the operating cost, and Cumberland County homeowners trust Southern Maine Heat Pumps to install them correctly.
These units work exceptionally well in basements, garages, and utility rooms where they also provide a welcome dehumidifying benefit. Modern heat pump water heaters feature built-in smart controls that let you set schedules, monitor energy usage, and switch to hybrid mode during periods of peak demand. With tank sizes ranging from 50 to 80 gallons, there is a model to match every household, from a couple in South Portland to a large family in Westbrook. Every unit we install is eligible for substantial Efficiency Maine rebates and federal tax credits, often covering a significant portion of the upfront investment.
A heat pump water heater pairs perfectly with a whole-home heat pump installation or a ductless mini-split system, allowing you to electrify your home's heating, cooling, and hot water in one coordinated project. If your existing water heater is reaching the end of its life, our replacement and upgrade team handles the full removal-to-installation process so you never go a day without hot water. And like all our equipment, your heat pump water heater benefits from our annual maintenance service to ensure long-lasting, efficient performance.

Efficient Hot Water for Every Home
Cumberland County homeowners are discovering that heat pump water heaters can cut their hot water costs by up to 70 percent compared to traditional electric tanks. By pulling heat from the surrounding air instead of generating it through resistance coils, these innovative systems deliver the same reliable hot water while using a fraction of the energy.
With generous rebates available through Efficiency Maine, upgrading to a heat pump water heater is more affordable than ever. Whether you're building new, replacing an aging tank, or simply looking to reduce your energy bills, a heat pump water heater is one of the smartest investments a Cumberland County homeowner can make.
What We Offer
Efficient, reliable hot water that costs a fraction of what traditional electric tanks demand.
Two to three times more efficient than electric tanks
Hybrid mode for peak demand periods
Built-in smart controls and scheduling
Works in garages, basements, and utility rooms
Long-lasting with 10-year warranty options
Eligible for Efficiency Maine rebates
Our Water Heaters Process
From evaluation to rebate paperwork, we handle every detail of your water heater upgrade.
Site Evaluation
We inspect your current water heater setup, available space, and electrical panel to plan the installation.
Equipment Recommendation
We recommend the right tank size and model based on your household size and hot water usage.
Removal & Installation
We remove your old water heater, install the new heat pump unit, and connect all plumbing and electrical.
Testing & Optimization
We fill the tank, test for leaks, set optimal temperatures, and configure smart scheduling features.
Rebate Assistance
We help you complete Efficiency Maine rebate paperwork and provide documentation for federal tax credits.
Why Choose Southern Maine Heat Pumps
Your trusted water heater specialists in Gorham, Portland, Biddeford, and all of Southern Maine.
Dramatically lower hot water heating costs
Reduces household energy consumption
Reliable hot water for the whole family
Qualifies for rebates and federal tax credits
Dehumidifies the space where it is installed
Environmentally friendly alternative to fossil fuels
What Our Customers Say
Don't just take our word for it. Here's what homeowners across Southern Maine have to say about our work.
“The crew installed heat pumps with 3 heads and a hot water heat pump and did an excellent job. Very responsive in getting a quote quickly and answered all questions about the process. Very friendly and did an awesome job explaining how to run the heat pumps after installation. Definitely recommend!”
Happy Customer
2025
“I HIGHLY recommend Southern Maine Heat Pumps! Sam and Chris came to provide recommendations and pricing, responded promptly and thoroughly to follow-up questions, installed in a timely manner, got everything installed and tested with a tutorial on how to use everything. Extremely nice and cleaned up after themselves.”
Cathy W.
2025
“Steve and his team were awesome! They worked on ways to make the exterior tubing less visible, were solutions oriented, fast, and clean. They also helped facilitate Efficiency Maine rebates. I have already referred two friends and highly recommend them.”
Satisfied Customer
2025
“These guys are knowledgeable, professional, and provide superb and cost-effective service. They made an effort to fit us in before federal tax incentives expired at the end of the year. Could not recommend Southern Maine Heat Pumps more!”
Amy B.
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?
Stop overpaying for hot water. Our team will evaluate your current setup, recommend the right heat pump water heater for your household, and handle every detail from old-tank removal to rebate paperwork. Southern Maine homeowners save hundreds every year after making the switch.
Call us directly at (207) 317-1077 or fill out the form to get started.