Heat Pump Repair in Silver Spring, Maryland
Montgomery County · 24 hour emergency service
Heat pump repair, replacement and maintenance in Silver Spring, from all-electric condo closets downtown to the bungalows off Woodside Park weighing a switch off gas. Our office is on Mount Pisgah Rd in 20903, so this is equipment we see every week.
Why people here call us.
Two different calls come in about heat pumps in Silver Spring, and they are not the same problem. The first is a system that has stopped doing what it should: no cool air in July, no warm air in January, or a Pepco bill that jumped for no obvious reason because the outdoor unit quit and the electric strip heat has been carrying the house by itself.
The second is a homeowner on gas asking whether a heat pump makes sense at all. Both deserve a real answer rather than a sales pitch. A heat pump has to satisfy the heating load and the cooling load off one piece of equipment, which means a sizing mistake shows up twice, once as a humid August and once as an expensive February on the Pepco bill.
We test refrigerant charge in both modes, watch the unit run a defrost cycle when the weather allows, and check how the thermostat is set up to bring on auxiliary heat before we tell you what the equipment needs.
What Silver Spring homes ask of this job.
Silver Spring is the one city we serve where all three heat pump conversations happen on the same day. Downtown and South Silver Spring condos and garden apartments are frequently all-electric already, running water source heat pumps, through-the-wall packaged units or a small split system in a closet, so there is no conversion question: the only question is what the association allows and what will physically fit through the door.
Push north into Woodside Park, Seven Oaks and Sligo Park Hills and you are in 1920s through 1940s bungalows and center hall colonials, most on Washington Gas, where going to a heat pump is a genuine economic decision rather than a foregone conclusion. Four Corners, Woodmoor, Northwood Park and Franklin Knolls run to mid-century brick ramblers and split-levels, and a good share of those went all-electric in the 1960s and 1970s and are on their second or third heat pump now.
Up through Hillandale and Kemp Mill in 20903 and 20902 the same era shows up with basements finished decades later, which quietly added heating load nobody recalculated. Pepco serves nearly all of Silver Spring, so any conversion here is a real Washington Gas versus Pepco comparison.
The problems that keep coming up.
- Outdoor units in Four Corners and Woodmoor stuck in one mode because a reversing valve solenoid failed, while strip heat quietly covers the difference.
- Downtown condo water source heat pumps shutting down on a clogged condensate line, which usually announces itself as a stain on the ceiling below.
- Defrost boards and outdoor coil sensors that quit quietly, leaving the outdoor unit iced solid on a wet 34 degree Silver Spring morning.
- Thermostats wired or configured so auxiliary heat engages on any call, turning a two stage heat pump into an expensive electric furnace every January.
- Bungalows near Sligo Park Hills where a heat pump was added over gravity-era trunk duct, so airflow is too low at 95 degree supply temperatures.
How the appointment runs.
A heat pump visit covers both modes, because the equipment does both jobs. We check refrigerant charge with superheat and subcool, read the temperature split across the coil, measure static pressure at the air handler, and confirm the outdoor fan, defrost control and reversing valve all behave. In heating weather we watch a defrost cycle end to end.
Then we look at the thermostat: staging, balance point where the control supports one, and how quickly it calls for auxiliary heat, since that setting alone can move a Pepco bill more than any part on the unit. Access is the variable here. In a Woodside or Four Corners house the air handler sits in a basement with room to work.
Downtown, a condo or garden apartment means building access, elevator scheduling and sometimes association approval before anything touches an exterior wall, so we ask when you book.
What decides the scope here.
A heat pump has more places to go wrong than a furnace, because it is one machine doing two jobs, and the scope of the repair follows which part of that machine failed. Capacitors, contactors, condenser fan motors and thermostats are same-visit work. Defrost boards and reversing valves are model specific and often ordered. Compressors are a different conversation altogether, and on an older system the honest question stops being how to fix it.
The part people are least prepared for is that the most expensive heat pump fault is frequently not a broken component at all. Auxiliary electric strip heat is designed to assist on the coldest mornings, but a miswired thermostat, a failed outdoor sensor or a badly set balance point will hand the whole load to those strips for weeks. Nothing sounds wrong, the house stays warm, and the fault shows up on a Pepco bill instead.
That is why we check staging and thermostat configuration on every heat pump visit rather than only when someone complains about a bill. Downtown condos add one more branch, because a water source heat pump on a building loop depends on the loop temperature the association controls, and that is a building problem rather than a unit problem.
When this goes wrong in Silver Spring.
Heat pumps in Silver Spring fail in seasonally distinct ways, and knowing which season you are in narrows the diagnosis. In July the complaint is a cooling complaint and looks like any air conditioner: weak airflow, a condenser that hums without spinning, a coil frozen because the return is starved. In December and January the faults become heat pump specific.
A defrost cycle that will not initiate leaves the outdoor coil under a shell of ice through a wet Maryland cold snap. A reversing valve that sticks means the system quietly runs the wrong mode. A balance point set too high runs strip heat when the heat pump could have carried the load on its own.
Shoulder season, roughly April and October, is the honest time to have it looked at, because both modes can be tested in a single visit rather than only the one the weather currently allows. It is also the only time of year when a reversing valve fault can be found before it matters.
Working in Silver Spring.
Home Comfort Air Services is based here in Silver Spring at 9737 Mount Pisgah Rd, 20903. Yosef started the company in 2014 after working as a service technician, and it is still family owned and operated, which is why a heat pump call in Woodside, Four Corners or Kemp Mill is a short drive rather than a dispatch from another county. We are NATE certified, Carrier authorized, BBB accredited with an A+ rating and ACCA members, licensed in Maryland under MD70918.
We participate in the Pepco and BGE residential rebate programs. Emergency service runs 24 hours. Military and senior customers get 10% off any repair, and a complete heating and cooling system installation comes with $150 off, with financing available.
Common questions.
Should I switch my Silver Spring bungalow from gas heat to a heat pump?
It depends on your envelope, your duct and what you pay Washington Gas versus Pepco. A modern heat pump holds useful capacity well below freezing, but an old bungalow with gravity-era duct and thin insulation leans on strip heat more than it should. We run a load calculation first. Sometimes dual fuel, a heat pump with the gas furnace as backup, is the better answer.
Why is my Pepco bill so high when the heat pump seems to work?
Usually auxiliary heat. Electric strips draw several times what the compressor does, and a thermostat configured to bring them on at the first temperature difference will run them constantly. Low refrigerant charge, a failed defrost sensor or undersized equipment look the same on a bill. We check charge, staging and the outdoor controls together, because any one of them can be the cause.
Are there rebates or tax credits for a new heat pump here?
Generally yes. Pepco and BGE run residential rebate programs for qualifying high efficiency heat pumps, Maryland EmPOWER programs cover related upgrades. We will not quote you an amount, since eligibility and program terms change. We tell you which programs your equipment qualifies for and what paperwork you need.
At what temperature should auxiliary heat come on around here?
There is no single right number, which is precisely why it should be set rather than left at whatever the thermostat shipped with. The balance point is the outdoor temperature below which your specific heat pump can no longer keep up with your specific house, and it depends on the equipment capacity, the insulation and the duct system. In Silver Spring a modern properly sized system generally carries most of the winter on its own and only needs help on the coldest mornings. If your strips are running in the forties, something is set wrong or something has failed.
Do heat pumps qualify for Pepco rebates in Silver Spring?
Frequently. Pepco runs residential rebates on qualifying high efficiency heat pumps under EmPOWER Maryland, and we participate in that program. Eligibility turns on the efficiency rating of the specific matched indoor and outdoor combination rather than on the brand, and some programs require the paperwork within a window after the work is done. The federal side is gone: Section 25C ended for equipment placed in service after December 31, 2025. We confirm what your equipment qualifies for before you commit and will not quote a figure the program administrator controls.
My heat pump runs almost constantly in January. Is it broken?
Probably not, and this is the single most common heat pump worry we hear. A heat pump is designed to run long, steady cycles at a lower output rather than short bursts of very hot air, so long runtime on a cold day is normal behavior and is part of why it is efficient. The air coming out will also feel cooler than furnace air even though it is heating the house. What is worth investigating is different: ice that never clears from the outdoor unit, auxiliary heat showing on the thermostat in mild weather, or a bill that jumped without a matching cold snap.