Open 24/7 for emergencies
For heat pump repair in Woodbridge, 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 Woodbridge, SwiftPro is rated 5.0 stars across 1,130 reviews and works under Virginia Class A contractor license 2705192276. We cover heat pump repair in Woodbridge, Lake Ridge and Potomac Mills. We find out why it isn’t heating and put the repair price in writing before any work starts. 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.
Get your price in writing
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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 Woodbridge
The median owner home across the Woodbridge area went up in 1976, older than almost any other part of the county we cover, and about a third of owner homes predate 1980. Electric heat serves close to four in ten of them, and in the condo and townhouse stretches that means a heat pump nearly every time. Where the house is that old, the pump out back is rarely original; more often it’s the second or third one, and the ductwork it’s pushing air through is the original.
That ductwork is half of why we get so many repair calls here. A heat pump in a 1970s house with leaky or undersized ducts runs long cycles, ices up more often, and leans on the backup strips when the air barely moves through the vents. Before blaming the refrigerant, we measure airflow at the handler. A dirty coil or a weak blower motor can look exactly like a failing outdoor unit and cost a fraction of the price.
Renters are a large share here, nearly three in ten households, and a lot of Woodbridge landlords call on a tenant’s report. If your tenant says it blows cool air in winter, that can be a stuck reversing valve, or just a pump stuck in defrost on a cold morning. Tell us what the tenant saw and give us their number; we set the visit with them and send the price to you.
Condos and garden-style buildings around Potomac Mills often share pads, with a rooftop or ground-level cluster of outdoor units that all look alike. Know which one is yours before the visit, and tell the association we’re coming. A label on the unit with your unit number saves a lot of walking. For the gas furnaces mixed in around Dale City, the Woodbridge furnace repair page covers that side.
Neighborhood by neighborhood
Census figures for each place, and what that usually means for a heat pump. Median year built and heat count owner-occupied homes only.
| Place | Median home built | Most homes are | Heated with | What that means for a heat pump |
|---|---|---|---|---|
| Dale City | 1983 | single-family houses, about 7 in 10 | gas, about 7 in 10 | Mostly gas: heat pumps here often sit over a furnace. |
| Lake Ridge | 1985 | townhouses, about 4 in 10 | electricity, about 5 in 10 | Mostly electric heat: heat pumps, and the bill shows trouble first. |
| Woodbridge | 1976 | single-family houses, about 4 in 10 | gas, about 5 in 10 | Mostly electric heat: heat pumps, and the bill shows trouble first. |
| Leesylvania | 2006 | single-family houses, about 4 in 10 | gas, about 6 in 10 | Mostly gas: heat pumps here often sit over a furnace. |
| Potomac Mills | 1988 | single-family houses, about 6 in 10 | electricity, about 7 in 10 | Mostly electric heat: heat pumps, and the bill shows trouble first. |
| County Center | 2006 | townhouses, about 4 in 10 | gas, about 6 in 10 | Mostly gas: heat pumps here often sit over a furnace. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
What you’d notice
Put your hand on a vent while the system runs. If the air is lukewarm and the flow is weak, start with the air filter, because a clogged one chokes the whole system. If the filter is clean, you’re likely looking at a blower or a coil problem, not the outdoor unit.
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.
A little frost on a cold morning is normal, and the unit melts it off every so often by running backwards for a few minutes. Ice that builds for hours and covers the whole coil usually means the defrost board, a sensor, or low refrigerant.
Need heat pump repair in Woodbridge?
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.
In a Woodbridge house from the 1970s, weak airflow through old ducts is a common cause of icing and strip heat. A tech who only hooks up gauges can miss it and sell you a repair that doesn’t last.
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 by Tyler and Team. Right from pricing to performing professional installation of new Heat Pump.
Where we work
Next door to Woodbridge: Dumfries, Lorton, Fairfax Station, Burke and Clifton.
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
If the unit serves only your home, the repair is usually yours even on common ground. Check your association’s access rules first and tell the manager a tech is coming.
A capacitor at $240 to $370 or a contactor at $290 to $425 is worth it on almost any age. A pump from that era likely runs R-22, so a refrigerant leak is often where repairs stop making sense, and we lay a replacement beside the repair before you decide.
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 Woodbridge 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.