Heat Pump Replacement & Upgrades
in Falmouth, Maine
Professional heat pump replacement for Falmouth homes and businesses, backed by Efficiency Maine rebate assistance and 30+ years of experience.
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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 Falmouth home to a modern, high-efficiency system. We serve Cumberland 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 Falmouth Foreside, West Falmouth, and Pleasant Hill and throughout Falmouth 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 Falmouth, learn more about heat pump replacement & upgrades, or call (207) 317-1077 to schedule a free in-home estimate.
Upgrading Early Heat Pumps and Oil Boilers in Falmouth Homes
About 11% of Falmouth homes list electricity as their main heat, a Census figure that covers both heat pumps and electric baseboard. If yours is an early mini-split, or baseboard you are tired of paying for, it may be time for an upgrade. Older units often lose output in deep cold, run louder, or rely on refrigerant and parts that are harder to find. Replacing them with a current cold-climate model can restore winter capacity without adding more equipment to the wall.
Before we swap equipment, we look at what can stay. Existing refrigerant line sets are reused only when they are the right size for the new unit and pass inspection and a pressure test; otherwise new lines go in. We also recheck the load, because many Falmouth owners have added insulation, windows or a room since the original install, and the right replacement may be a different size or a different number of zones. Wiring, the disconnect and the outdoor stand get checked too, since a wobbly bracket or undersized circuit will shorten the life of new equipment.
The other common upgrade is from oil or propane. Around 43% of Falmouth homes still burn oil and about 21% use propane, according to the Census Bureau American Community Survey (2020–2024). For those houses, the move to heat pumps as the primary system keeps the boiler or furnace in place only as emergency backup, which is what Efficiency Maine requires for its whole-home rebate as of mid-2026. For comparison, Efficiency Maine's own June 2026 example puts savings from heat pumps versus propane at about $1,387 a year, at $3.34 a gallon and 27 cents a kilowatt-hour.
Gas matters here more than in most towns. Close to one Falmouth home in five heats with utility gas, and Efficiency Maine's whole-home rebate is not available to a housing unit that had a natural-gas account before the upgrade. Those owners can still replace equipment and may qualify for other rebate categories, so we check the details before quoting. The federal 25C tax credit ended with equipment placed in service after 2025, which makes the state program the main incentive now.
We service and replace all heat pump brands, not only systems we installed. See our heat pump replacement and upgrades page, schedule annual service and maintenance to keep a newer unit efficient, or read how the same choices play out for heat pump replacement in Yarmouth.
Sources: Census Bureau American Community Survey (2020–2024), 5-year estimates; Efficiency Maine, Residential Heat Pump Rebate Brochure (June 2026); Summit Natural Gas of Maine selected by Cumberland, Falmouth and Yarmouth; Falmouth, Maine (geography); IECC Compliance Guide for Homes in Maine (climate zones by county).
Heat Pump Replacement & Upgrades Codes & Permits in Falmouth
What Maine law and Falmouth's own code office require before any work begins.
Permitting authority
Electrical inspection & utility
Falmouth's Code Enforcement Division issues building, plumbing, heating and electrical permits together and requires a current Maine electrician's license before work is inspected. 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 Falmouth still touches the electrical circuit in most cases, so we schedule the inspection with Falmouth Code Enforcement Division ourselves. We also confirm your address never held a natural-gas account before assuming any Efficiency Maine rebate applies.
Google Street View — Mackworth Island causeway approach, Andrews Avenue
Falmouth at a Glance
Mixed 1940s-1980s housing
Primary heating fuel (ACS 2020-2024)
Oil is still the #1 heat source in Falmouth — the clearest signal that a heat pump conversion beats the cost of another winter of deliveries.
Trusted Heat Pump Replacement & Upgrades in Falmouth
Falmouth homeowners, from the Foreside waterfront to West Falmouth estates, choose heat pumps to electrify large homes and trim heating bills. Our Falmouth 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 Falmouth Foreside or West Falmouth, we deliver comfort you can count on.
What We Offer
Every heat pump replacement in Falmouth 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 Falmouth 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 Falmouth Homeowners Choose Us
Trusted across Cumberland 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 Falmouth
Falmouth's original 1718 boundaries took in what is now Portland, South Portland, Westbrook, and Cape Elizabeth — meaning most of Greater Portland was once simply "Falmouth." Today the town is best known for the Foreside, where one of the largest anchorages on Casco Bay fills with sailboats every summer.
Falmouth's housing skews large — sprawling colonials, waterfront contemporaries, and estate properties that are expensive to heat with oil or propane. Multi-zone heat pump systems shine in these homes, letting owners condition the rooms they use instead of paying to heat the whole footprint around the clock.
Falmouth Heat Pump Replacement & Upgrades FAQs
When should I replace my heat pump in Falmouth?
If your Falmouth 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 Falmouth?
In many Falmouth 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 Falmouth?
Yes. Modern high-efficiency heat pumps installed in Falmouth 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 Falmouth
Nearby Communities We Serve
Ready for Heat Pump Replacement & Upgrades in Falmouth?
Schedule your free in-home consultation today. We will assess your Falmouth 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.