Heat Pump Repair & Installation in Gaithersburg, MD
Heat pumps heat and cool your home from a single efficient system, which makes them a popular choice across Gaithersburg and Montgomery County. P&Y Heating and Cooling repairs, replaces, and installs heat pumps — including dual-fuel and ductless systems — with the licensed expertise these systems require.
Because a heat pump runs year-round, small problems with defrost, refrigerant, or the reversing valve can hurt both comfort and efficiency. We diagnose the real issue and get your system back to peak performance.

Heat Pump Problems We Repair
Heat pumps have unique failure modes. Call us if you notice:
- The heat pump won't switch between heating and cooling modes
- Weak heating output or the backup/auxiliary heat runs constantly
- The outdoor unit ices over and won't defrost properly
- Short cycling or the system runs nonstop
- Warm air in cooling mode or cool air in heating mode
- Unusual noises from the compressor or reversing valve
- A spike in electric bills from over-reliance on strip heat
Our Heat Pump Service Process
Heat pumps demand precise diagnostics — the same unit handles heating and cooling.
Full-system diagnostic
We test both heating and cooling modes, the reversing valve, defrost board, refrigerant charge, and auxiliary heat to find exactly where performance is dropping.
Clear recommendation
You get a written repair scope, or — for aging or failing units — an honest replacement comparison including dual-fuel and high-efficiency options.
Repair or install
Whether it's a defrost sensor or a full system swap, we do the work to code, with proper refrigerant charge and airflow.
Verify year-round performance
We confirm the unit heats and cools correctly, defrosts on schedule, and isn't leaning on expensive strip heat.
Why Dual-Fuel Works Well Here
Standard air-source heat pumps lose efficiency in a hard freeze and lean on electric strip heat, which drives up bills. A dual-fuel system pairs a heat pump with a gas furnace: the heat pump handles efficient heating and cooling most of the year, and the furnace takes over when Maryland temperatures really drop. For many Gaithersburg homes, it's the best of both worlds.
Ductless Mini-Splits for Tough Spaces
Older homes without ductwork, additions, finished basements, and bonus rooms are ideal candidates for ductless heat pumps. They deliver efficient, zoned heating and cooling without the cost and disruption of installing ducts — a common solution in Montgomery County's historic and hard-to-retrofit homes.
What Affects Heat Pump Cost
Repairs fall in typical HVAC ranges; installations vary with system type and capacity. We provide written quotes after assessing your home. Cost drivers include:
- Repair vs. full replacement, and the specific failed component
- System capacity (tonnage) and efficiency (SEER2/HSPF2)
- Standard air-source vs. dual-fuel (heat pump + furnace) configuration
- Ducted vs. ductless mini-split installation
- Auxiliary/backup heat and electrical requirements
- Permit and inspection coordination with Montgomery County
Request Service
Fast response · No obligation · Upfront pricing
Why P&Y for Heat Pump Service
Heat pumps run year-round and fail in ways a general tech can miss. Here's our edge.
We test both modes
Because one unit handles heating and cooling, we test the reversing valve, defrost board, refrigerant charge, and auxiliary heat — not just whether it turns on.
Dual-fuel and ductless expertise
We design and service dual-fuel systems and ductless mini-splits — the setups that fit Maryland's climate and older homes best — not just standard air handlers.
We stop the strip-heat bleed
Excess auxiliary heat quietly wrecks your electric bill. We find the defrost, refrigerant, or reversing-valve cause and get the heat pump doing the heavy lifting again.
Where We Provide Heat Pump Repair & Installation
We repair, replace, and install heat pumps across Montgomery County, including ductless mini-splits for older homes in Silver Spring and dual-fuel systems in Germantown. We size and configure each system for Maryland's mix of humid summers and hard freezes.
We serve heat pump repair & installation across Gaithersburg and all of Montgomery County, including:
Heat Pump Repair & Installation FAQs
Why is my heat pump running the backup heat so much?
How long do heat pumps last in Maryland?
Is a heat pump a good choice for Maryland?
My heat pump is frozen over in winter. Is that normal?
Can you install a ductless heat pump in an older home?
Related Services
Trusted by Your Neighbors
Pedro and team did a great job installing a new heat pump system in my home. Communication, pricing, cleanliness, and turnaround time were top notch!
Chris Bryant
Verified Google review
Heat Pump Installation
P&Y (Pedro) and his crew were absolutely outstanding. My unit was about 20 years old and giving problems. He was very responsive and made an appointment the same day. He not only told me the issue but gave me options — a repair price and a price on a new unit — even knowing the unit was 20 years old. Other companies just told me to change the unit. His crew spent almost 7 hours and tested it so it worked perfectly. Reasonable and great pricing than these big box companies.
Sandeep Visveswaran
Verified Google review
AC Installation
Great service and very honest. My parents had an HVAC issue where they called two different companies and both said to replace the whole unit. We decided to go for a 3rd opinion and contacted P&Y. It turned out to be a simple fix.
Mario Velarde
Verified Google review
AC Repair
Need Heat Pump Repair & Installation in Gaithersburg?
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