A heat pump is an air conditioner that also runs in reverse, so one outdoor unit cools your house in August and heats it in January. Fallbrook Heating & Air handles heat pump installation in Fallbrook and across North County, and repairs heat pumps of all makes and models. Our mild winters suit heat pumps well. Whether one is the right choice for your home depends on your fuel, your bills and your existing equipment, and we will give you a straight answer on all three.
How does a heat pump heat and cool a home?
A heat pump moves heat rather than making it. In summer it pulls heat out of your house and releases it outdoors, exactly like a central air conditioner. In winter a reversing valve flips the flow, so it gathers heat from the outdoor air, even cool air, and releases it inside through the same ducts.
Because it moves heat instead of burning fuel, a heat pump can deliver more heat energy than the electricity it uses. Most homes keep the same ductwork and indoor air handler, with electric backup heat strips for the rare cold snap.
Why do heat pumps suit North County's climate?
Our winters are mild. Fallbrook's December lows average about 41°F and daytime highs are in the upper 60s, which is comfortable territory for a heat pump. Heat pumps struggle mainly in deep, sustained freezes, which we rarely see. And because North County needs cooling more than heating, one efficient system covers both jobs.
Heat pumps also make sense where there is no natural gas main. Many rural homes around Fallbrook, De Luz and Rainbow heat with propane, and a heat pump can remove the need for a propane furnace altogether. For homes that want to keep an existing gas furnace as backup, a dual-fuel setup pairs the two: the heat pump does most of the heating and the furnace takes over on the coldest mornings. We install, service and maintain dual-fuel systems.
Do you install ductless mini-splits?
Yes. We install, service and maintain ductless mini-splits, which are heat pumps with one outdoor unit and one or more wall- or ceiling-mounted indoor units. They suit additions, garages converted to living space, and homes that were built without ducts.
For a whole house that already has good ductwork, a ducted heat pump is usually the simpler choice. Where there are no ducts, or one room never keeps up, a mini-split avoids running new ductwork. We can quote both so you can compare.
Will a heat pump lower my energy bills?
It depends, and we will not promise savings we cannot show. A heat pump uses electricity for heating, and SDG&E electricity rates are among the highest in the country. If you heat with propane or electric resistance heat, a heat pump often compares well. Against inexpensive natural gas, the result is closer.
What usually tips the balance is what you are replacing. If your air conditioner is near the end of its life anyway, a heat pump costs less extra than buying a new AC and a new furnace separately. If you have rooftop solar, your billing plan matters too. Our guide to heat pump vs furnace in North County walks through the comparison.
Are there heat pump rebates or tax credits in 2026?
Fewer than there were. As of October 2026, the federal 25C tax credit has ended for equipment installed after December 31, 2025; TECH Clean California single-family incentives have been closed to new reservations since November 2025; and HEEHRA rebates are fully reserved and no longer accepting new reservations. SDG&E lists any current programs on its rebates page.
- Federal 25C credit: ended for equipment placed in service after December 31, 2025 (Tax Foundation)
- TECH Clean California: single-family incentives closed to new reservations since November 14, 2025 (TECH Clean California)
- HEEHRA: fully reserved and no longer accepting new reservations (TECH Clean California)
- SDG&E: current offers at sdge.com/rebates
Programs change; we will check current eligibility with you before you decide. Our rebates guide tracks which programs are open, with the date we last checked.
What goes into a heat pump installation?
A heat pump install starts with sizing for both heating and cooling, then a permit, removal and EPA-compliant disposal of the old equipment, a matched outdoor unit and indoor coil or air handler, electrical checks, Title 24 duct testing and sealing, required third-party verification, and a full startup test in both heating and cooling modes.
- Free estimate. We look at the existing system, ducts, electrical service and where the outdoor unit can go, including whether your electrical panel has the capacity for a heat pump. If it needs an upgrade, we refer you to an electrician.
- Equipment choice. New split heat pumps must meet at least 14.3 SEER2 and 7.5 HSPF2 in California. New units use A2L refrigerants such as R-454B or R-32.
- Permit. From San Diego County Planning & Development Services for unincorporated areas, or your city's building department.
- Install and testing. Title 24 duct testing and sealing, plus additional verification that can apply depending on the equipment and climate zone.
- Startup. Both modes tested, thermostat set up for heat pump operation, and defrost and backup heat explained.
California does not require a heat pump when you replace an existing AC or furnace. It is an option worth pricing alongside a new air conditioner or furnace.
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What goes wrong with heat pumps, and can you fix it?
Yes, we repair heat pumps of all makes and models. Common problems include a reversing valve stuck in one mode, defrost controls that let the outdoor coil ice over, failed capacitors and fan motors, refrigerant leaks, and thermostats wired for a furnace instead of a heat pump.
A heat pump that cools but will not heat usually points to the reversing valve or its controls. One that heats weakly on cold mornings and runs its backup heat strips constantly may be low on refrigerant, iced up, or simply undersized. Because a heat pump runs in both seasons, small problems show up in bills quickly: if your winter electric bill suddenly climbs, the backup strips may be doing the work the heat pump should be doing.
Many older heat pumps use R-410A, and those systems can still be serviced and repaired. If a major part fails on an older unit, we will lay out repair and replacement side by side so you can compare them fairly.
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Where we work
We install and repair heat pumps from Fallbrook to the coast, including Carlsbad and Oceanside, where mild coastal temperatures make heat pumps a natural fit, and inland in Vista. Near the ocean, regular coil rinsing through a maintenance visit helps protect the outdoor unit from salt air. Call (760) 728-8716 to book.
Frequently asked questions
Does a heat pump work when it is cold outside?
Yes, comfortably in our climate. Fallbrook's December lows average around 41°F, which is well within the range where a modern heat pump heats efficiently. Heat pumps lose capacity in deep freezes far colder than North County sees, which is why they are more common here than in places with harsh winters.
Why does my heat pump's outdoor unit steam or go quiet in winter?
That is usually a defrost cycle. On cool, damp mornings frost builds on the outdoor coil, so the heat pump briefly reverses to melt it, and you may see steam rising. Defrost normally lasts a few minutes. A unit that stays iced over, or never defrosts, needs service.
Is a heat pump the same as an air conditioner?
Almost. A heat pump is an air conditioner with a reversing valve, so it can move heat out of the house in summer and into the house in winter. It cools just like a central AC. The difference is that it can also replace the heating your furnace provides.
How long do heat pumps last in North County?
Many heat pumps last somewhere in the range of 10 to 15 years, but they run in both seasons, so they log more hours than an AC used only in summer. Coastal salt air can shorten outdoor coil life. Annual maintenance, clean coils and prompt leak repair all help a system reach the upper end.
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