Heat Pump Replacement & Upgrades
in Biddeford, Maine
Professional heat pump replacement for Biddeford homes and businesses, backed by Efficiency Maine rebate assistance and 30+ years of experience.
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- Licensed & Insured
- 30+ Years Experience
- Efficiency Maine Registered Vendor
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How a Heat Pump Works
- Outdoor unit — fan and compressor extract heat from outside air, even in cold weather
- Reversing valve — switches the system between heating and cooling
- Line set — carries hot, high-pressure refrigerant indoors
- Indoor coil — releases heat into the airstream
- Warm air — the blower delivers it to the room
If your heat pump is aging, losing efficiency, or breaking down, Southern Maine Heat Pumps can upgrade your Biddeford home to a modern, high-efficiency system. We serve York County with complete replacements, from removing and recovering refrigerant out of your old equipment to installing today's far more efficient cold-climate models and completing every rebate form.
Homeowners in Biddeford Pool, downtown Biddeford, and Fortunes Rocks and throughout Biddeford are surprised how much quieter and more efficient new systems run compared to units from even a few years ago. Where possible we reuse existing line sets to keep your upgrade affordable.
Looking for the full picture? Explore all of our heat pump services in Biddeford, learn more about heat pump replacement & upgrades, or call (207) 317-1077 to schedule a free in-home estimate.
Replacing Worn Boilers, Baseboard and Early Heat Pumps in Biddeford
Heating equipment in Biddeford tends to be old because the buildings are. When a boiler nears the end of its life, or an early mini-split starts losing ground on cold nights, owners choose between a like-for-like swap and putting heat pumps in the lead. Our heat pump replacement and upgrade service covers both older heat pumps and the oil and propane systems they often sit beside.
Natural gas is part of the Biddeford picture in a way it is not across most of York County. About 8% of occupied homes use utility gas, nearly double the county's 4%. Efficiency Maine's whole-home heat pump rebate, as of mid-2026, is unavailable for a housing unit that had a natural-gas utility account before the upgrade. That does not rule heat pumps out; it changes which incentive applies, so we confirm account history before quoting any rebate figure. Ducted and supplemental rebates follow separate rules, published at efficiencymaine.com.
For oil and propane homes, which together make up roughly three-quarters of the city, the usual upgrade keeps the existing boiler or furnace but demotes it to emergency backup while heat pumps carry the house all season. Efficiency Maine's own example, using prices from June 18, 2026, estimates about $1,387 a year saved when a home heats with heat pumps instead of propane, at $3.34 per gallon and $0.27 per kWh. Your figure depends on the house, the equipment and current rates. The Efficiency Maine Home Energy Loan can help spread the upfront cost, and we help with the application alongside the rebate claim.
Replacing an older ductless system raises the line-set question. Reusing existing copper can spare a wall repair, but only if the tubing is the right diameter for the new unit, undamaged, and able to hold a pressure test and a deep vacuum. Flare connections are remade, and anything doubtful is replaced rather than trusted for another decade. The same goes for condensate lines and pumps, which on older installs are often the part that fails first.
Electric baseboard, common in apartments, is the other big target. About 12% of Biddeford homes list electricity as their main heating fuel, and the Census does not separate baseboard from heat pumps in that count. Moving baseboard-heated apartments to heat pumps reduces the electricity used for heat and adds summer cooling tenants notice, which can help a landlord fill apartments in July as well as January. We service all brands and offer free estimates; for comparison with the city's northern neighbor, see heat pump replacement in Saco.
Sources: Census Bureau American Community Survey (2020–2024), 5-year estimates; Efficiency Maine, Residential Heat Pump Rebate Brochure (6/24/2026); Maine PUC, natural gas distributors and service communities; Biddeford, Maine (geography, river falls and historic districts).
Heat Pump Replacement & Upgrades Codes & Permits in Biddeford
What Maine law and Biddeford's own code office require before any work begins.
Permitting authority
Electrical inspection & utility
Biddeford employs its own municipal Electrical Inspector, Robert Prescott, inside the Code Enforcement Office. Electric service runs on Central Maine Power (CMP).
Refrigerant rules
EPA Section 608 of the Clean Air Act (40 CFR Part 82, Subpart F) prohibits intentionally venting refrigerant while installing, maintaining, servicing, repairing or disposing of heat pump or air-conditioning equipment, and requires technicians who handle refrigerant to hold Section 608 certification.
Ventilation code
The 2021 IECC (adopted by MUBEC) caps whole-building air leakage at 3 air changes per hour at 50 pascals for climate zones 3-8 — Maine sits entirely within zones 5-7 — tested via a blower-door test. Combined with ASHRAE 62.2's mechanical ventilation requirement for new construction, this is why many new Maine homes need a dedicated ERV or HRV for code-required fresh air.
What heat pump replacement & upgrades specifically requires
- A like-for-like condenser swap still requires an electrical permit if the circuit, disconnect or wiring is touched.
- Replacement installs completed after January 1, 2025 fall under the AIM Act's Technology Transitions restrictions on newly manufactured high-GWP refrigerant equipment, though EPA has weighed extending the R-410A sell-through window.
How Southern Maine Heat Pumps Handles It
Swapping an old heat pump for a new one in Biddeford still touches the electrical circuit in most cases, so we schedule the inspection with Biddeford Code Enforcement Office ourselves. We also confirm your address never held a natural-gas account before assuming any Efficiency Maine rebate applies.
Google Street View — Mile Stretch Road, Biddeford Pool
Biddeford at a Glance
Mostly pre-1940 housing
Primary heating fuel (ACS 2020-2024)
Oil is still the #1 heat source in Biddeford — the clearest signal that a heat pump conversion beats the cost of another winter of deliveries.
Trusted Heat Pump Replacement & Upgrades in Biddeford
From restored mill lofts downtown to Biddeford Pool cottages, heat pumps deliver efficient year-round comfort throughout the city. Our Biddeford customers choose Southern Maine Heat Pumps for clean workmanship, honest pricing, and systems sized precisely for their homes.
Every project is backed by full Efficiency Maine rebate assistance and our commitment to quality. Whether you are in Biddeford Pool or downtown Biddeford, we deliver comfort you can count on.
What We Offer
Every heat pump replacement in Biddeford is customized to your home, your goals, and the Southern Maine climate.
Comprehensive old system removal
Upgrade to latest high-efficiency models
Reuse existing line sets when possible
Updated electrical and mounting as needed
Complete Efficiency Maine rebate paperwork
Proper refrigerant recovery and disposal
Our Biddeford Replacement Process
From first call to final walkthrough, here is what to expect when you choose Southern Maine Heat Pumps.
System Assessment
We evaluate your current system, identify inefficiencies, and recommend the best replacement options for your needs.
Upgrade Planning
We design the replacement around your existing infrastructure, reusing components where possible to reduce cost.
Old System Removal
We safely remove and dispose of your old equipment, recovering refrigerant in compliance with EPA regulations.
New System Installation
We install your new high-efficiency system with fresh connections, updated wiring, and secure mounting.
Performance Verification
We test the new system thoroughly, compare performance to the old unit, and handle all rebate documentation.
Why Biddeford Homeowners Choose Us
Trusted across York County for expert heat pump replacement and exceptional service.
Restore peak heating and cooling performance
Lower energy bills with modern efficiency ratings
Quieter operation than older units
Improved cold-weather heating capability
Fresh manufacturer warranty coverage
Maximized rebates and incentive savings
Replacing an Aging Heating System With a Heat Pump
Most replacement projects start with a system that's aging out — an oil furnace nearing 20 years, electric baseboard that's become expensive to run, or an early-generation heat pump that never quite handled a Maine winter well. The upgrade decision usually comes down to three questions: replace like-for-like, go all-electric, or keep something as backup.
Read the full guide
Efficiency Maine
Rebates & Guidance
- Rebate
A replacement qualifies the same as a first-time install
Trading in an old heat pump, or moving off oil, propane, or electric baseboard entirely, taps the identical rebate scale as a brand-new project: $3,000 to $9,000 on a ducted system, or $1,000 to $3,000 per outdoor condenser on a mini-split, all scaled by income tier.
Source: Efficiency Maine - Recommendation
The old furnace doesn't have to go anywhere
A fair number of our replacement customers make the heat pump their day-to-day system and leave the old oil or propane furnace sitting there for an especially cold stretch or an outage. That choice doesn't change the rebate math on the heat pump side one bit.
Source: Efficiency Maine
Program details as of Sep 26, 2026. Rebate amounts and eligibility change; confirm current terms at efficiencymaine.com.
Getting to Know Biddeford
Biddeford Pool is the site of Maine's first recorded European settlement — Richard Vines wintered there in 1616-17, four years before the Mayflower reached Plymouth. Downtown, the vast Pepperell and Laconia mill complexes wove cotton for over 175 years until 2009, and those same brick mills are now in the middle of one of New England's most celebrated revivals, filling with lofts, restaurants, and small businesses.
That revival is changing how Biddeford heats: renovated mill lofts and downtown multifamilies are adopting heat pumps as their primary systems, while out at Biddeford Pool and Fortunes Rocks we winterize classic beach cottages with coastal-rated units that handle both February gales and August humidity.
Biddeford Heat Pump Replacement & Upgrades FAQs
When should I replace my heat pump in Biddeford?
If your Biddeford heat pump is over 10 to 15 years old, needs frequent repairs, struggles to keep up on cold days, or your energy bills are climbing, it is usually worth replacing. We will give you an honest assessment during a free in-home visit.
Can you reuse my existing line set when upgrading in Biddeford?
In many Biddeford replacements we can reuse the existing refrigerant line set and mounting, which lowers cost. We inspect everything first and only reuse components that meet manufacturer specifications.
Will a new heat pump lower my bills in Biddeford?
Yes. Modern high-efficiency heat pumps installed in Biddeford carry significantly better efficiency ratings than older units, so most homeowners see lower heating and cooling costs along with quieter, more reliable operation.
What Our Customers Say
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
More Heat Pump Services in Biddeford
Nearby Communities We Serve
Ready for Heat Pump Replacement & Upgrades in Biddeford?
Schedule your free in-home consultation today. We will assess your Biddeford home, recommend the right system, and walk you through every rebate and financing option available.
Call us directly at (207) 317-1077 or fill out the form to get started.