Open 24/7 for emergencies
For heat pump repair in Round Hill, the diagnostic visit is $99. Call SwiftPro, rated 5.0 stars across 1,130 reviews, at (703) 997-9757, 24 hours a day, 7 days a week.
For heat pump repair in Round Hill, SwiftPro is rated 5.0 stars across 1,130 reviews and works under Virginia Class A contractor license 2705192276. Heat pump repair in Round Hill, where most pumps are from the 2000s and are now at the age when the small parts go. A contactor runs $290 to $425 and a defrost board $450 to $1,150, from our published price book.
5.0 stars across 1,130 reviews
A Trane heat pump on its pad in a Northern Virginia winter, the kind of morning the calls come in.
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Rather talk now? (703) 997-9757
Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceWe answer day or night, and we will tell you honestly when we can get there.
Our own HVAC installersA dedicated heating and cooling team, separate from our plumbers
Price in writing firstYou see every option priced before anything is ordered
What it costs
The same price book as the rest of our site. The diagnostic visit is $99, and the tech prices the repair before starting it.
Repair diagnostic visit
$99
Run capacitor replaced
$240 to $370
Contactor replaced
$290 to $425
Thermostat replaced
$300 to $640
Defrost board replaced
$450 to $1,150
Control board replaced
$550 to $1,180
Prices checked .
We answer day or night, and we will tell you honestly when we can get there.
With Comfort+ membership, $20 a month or $199 a year, the diagnostic visit is included, any service is 15% off, and a heating maintenance visit comes every fall.
What’s different in Round Hill
The median owner home in Round Hill’s ZIP went up in 2004, and more than half were built since 2000. Over half run on electric heat, and propane covers most of the rest. Put those together and you get a lot of heat pumps that were new in the 2000s and 2010s and are now old enough to start giving trouble. Not dead, just worn in a way we see over and over.
A pump that has run every month of the year for 20 winters has switched on tens of thousands of times. That wears the contactor first, the capacitor next, then the fan motor, then the defrost board. We carry the common ones on the truck. A contactor runs $290 to $425, a capacitor $240 to $370 and a defrost board $450 to $1,150, and each one can buy several more seasons. The compressor is the part we try to protect by fixing the cheap ones early.
About nine in ten homes here are detached, with a couple of newer subdivisions where the outdoor unit is on a corner pad close to the fence. Fence panels, shrubs and the dryer vent leave less room around the unit than the book calls for, and a heat pump hemmed in on a cold day will ice up from its own cold exhaust. Moving a shrub is sometimes the whole repair.
About four houses in ten use propane, and there the heat pump usually sits in front of a furnace. When the pump fails in January, the furnace covers, and the first sign is the tank draining. The reverse also happens: the furnace is fine and the heat pump quit in October, and you won’t find out until the cold. We suggest a quick check in the fall, before the first freeze, so the pair works together when you need it.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 20141 as a whole: every Round Hill address, the Town and the neighborhoods around it. The Census place for the Town alone has too few homes for steady figures.
What you’d notice
A pump that sends out air only a few degrees above the room, and has done so since October, is often low on charge or has a weak fan or a dirty coil. It still runs, so nobody calls. By January the strips are doing the work, and the bill shows it. A $99 diagnostic visit finds which.
When the outdoor unit stops pulling its weight, the electric strips in the air handler carry the house. The house stays warm, and the bill tells you a few weeks later. A stuck contactor is a common reason, and one of the cheapest fixes on our list.
In a newer two-story house on one heat pump, the top floor lagging a few degrees can be ducts or the thermostat’s settings, not a failing unit. We check the system first and tell you which it is.
Need heat pump repair in Round Hill?
A person answers day and night. See this month’s deals before you call.
Choosing who fixes it
Questions worth asking anybody who comes out, us included.
Cramped fencing and shrubs cost a heat pump more than people think. A good tech looks at clearances and tells you if the fix is trimming, not parts.
Anyone can check on the state’s license lookup. Ours is Virginia Class A contractor license, on every van.
Every heat pump repair on our list has a range, and you hear where yours lands before a part goes in. If someone can’t give you a number until it’s done, keep looking.
An older heat pump with a refrigerant leak is often a bad repair. A good tech says so, with the repair price and the replacement price side by side.
Two of our crew going over a work order before the day's calls.
From our Google reviews
5.0 stars across 1,130 reviews. Read them on our reviews page.
Excellent work done honestly and efficiently. Efrain the technician was great. Was able to diagnose the problem quickly and get my older Amana gas furnace system working again.
Where we work
Next door to Round Hill: Purcellville, Bluemont, Philomont, Hamilton and Middleburg.
The system we put in first
Built to take a beating. Put in by our crew.
Heat lamps, snow and rain on one outdoor unit: that’s Trane’s own film. We’re a Trane Comfort Specialist, on Trane’s own dealer locator, and when you pick a Trane, our crew puts it in.
Films: Trane’s own.
Questions
Usually the contactor or the capacitor, then the fan motor, then the defrost board. All of them are repairs, and we price each from the book before we start. The compressor is the one to protect.
When a big repair, like a compressor or a refrigerant leak on an older unit, costs close to half a new one. We lay the repair and a replacement side by side so you can pick.
That’s defrost. The unit stops the outdoor fan, runs backwards for a few minutes to melt frost off the coil, and you see steam rising. It’s normal. Ice that stays is not.
The diagnostic visit is $99. From our price book, a capacitor is $240 to $370, a contactor $290 to $425, and a defrost board $450 to $1,150. You get the number before we start.
Ready when you are
Call, or send the form at the top. The tech prices the repair from the book before starting, and if the system is at the end of its life you’ll hear that first.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
SwiftPro Plumber & Water Heaters
4200 Lafayette Center Dr, Suite N, Chantilly, VA 20151
Virginia Class A contractor license #2705192276
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Round Hill and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,130 reviews on Google, Angi, Yelp, the BBB and Facebook. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
From SwiftPro Heating, Cooling & Plumbing in Chantilly. Housing figures are the Census Bureau’s American Community Survey, 2020 to 2024, for each place named; permit, water and sewer facts link to each office’s own page and were checked in September and October 2026.