Open 24/7 for emergencies
AC repair in Calverton starts with a $99 diagnostic visit. About half the owner homes around here heat with electricity, so the unit is often a heat pump.
Get your price in writing
Send this and the office calls or texts you back to set a time.
We’ll call or text this number about your request. By sending it you agree to our terms and privacy policy.
Rather talk now? (703) 997-9757
5.0 stars across 1,132 reviews
One of our HVAC technicians beside an outdoor unit at a Northern Virginia home, the vans at the curb.
Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceOften same-day, 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 our AC repair page. The diagnostic visit is $99, and the common parts ride on the truck, so most of these get fixed on the first visit.
Run capacitor replaced
$240 to $370
Contactor replaced
$290 to $425
Condensate drain cleared
$175 to $420
Refrigerant topped up
$190 to $740
Blower wheel pulled and cleaned
$300 to $440
Refrigerant leak found and repaired
$1,850 to $2,700
or $31/mo at 0% APR for 60 months
Repair diagnostic visit
$99
Monthly figures: 60mo @ 0% APR on each starting price, the whole price financed, on approved credit. Longer plans lower the payment and cost more in total. The lender sets the final terms. How financing works
Often same-day, 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 the cooling and heating maintenance visits are part of the membership.
What’s different in Calverton
Calverton’s own ZIP, 20138, is post office boxes, so the Census numbers here come from 20119, the Catlett ZIP area that holds most of the village’s houses. About half the owners there heat with electricity, and in these detached houses that’s most often a heat pump. Fix the outdoor unit in July and you’ve fixed the heat for a winter of close to a hundred freezing nights, so the tech should test both modes before calling it done.
Summers are short but sharp. Warrenton 3 SE, the NOAA station about six miles west-northwest, averages a July high just under 85 degrees and about 21 days a year at 90 or hotter, with roughly 1,020 cooling degree days against about 4,680 heating. It read 99 on July 23, 2011, and on the 2012 derecho day the Weather Service estimated heat indexes of 110 to 114 across southern Fauquier. A tired capacitor tends to quit on a day like that.
On August 29, 2024, thunderstorm gusts estimated near 64 mph knocked down numerous trees near Calverton, and in October 2011 an EF0 tornado ended its six-mile track about half a mile from the village. After a blow like that, look at the outdoor unit before turning the cooling back on. A branch through the top grille or fins plastered with leaves is a reason to leave it off and call us; a fan blade that catches a stick can take the motor with it.
Fauquier County’s village plan says an extensive floodplain runs through the middle of Calverton, and Bastable Mill Road has closed for high water at Turkey Run or near Brookfield Drive four times since 2014. If floodwater reaches the outdoor unit, don’t switch it on to test it; the contactor, capacitor and fan motor all live in that cabinet. Let it dry, call us after the storm, and we’ll check the unit, its wiring and the condensate drain inside on one visit.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
Calverton’s own ZIP, 20138, is post office boxes only, so the Census Bureau maps no area for it. These are ZIP 20119 as a whole, the Catlett ZIP area that holds nearly nine in ten of the Calverton Census place’s homes.
What you’d notice
Many systems wait a few minutes after the power returns before the compressor starts, so give it ten. If it’s still silent, check the breaker and the disconnect box beside the unit once. If the breaker trips again, leave it off and call: something is shorting, and resetting it over and over can damage the compressor.
Ice on the outdoor lines in July means low refrigerant or starved airflow. Shut it off to thaw and call; running it iced can take out the compressor.
Usually the outdoor unit has stopped running. A hum with no fan turning is almost always the run capacitor; silence while the thermostat calls is usually the contactor.
Choosing who fixes it
Questions worth asking anybody who comes out, us included.
On a Calverton heat pump, August is the cheap month to catch a sticking reversing valve or a weak defrost board, long before January leans on it. Before the tech packs up, have them flip it to heat and let it run a while.
A company that prints what a capacitor or a contactor costs has already told you the number. One that won’t say until the tech is in your driveway hasn’t.
A healthy system drops the air somewhere around 16 to 22 degrees across the indoor coil. Low refrigerant means a leak, and topping it up every summer is the expensive way to find that out.
Some repairs aren’t worth doing on a 20-year-old system. The good answer shows you the repair price and the replacement price side by side and lets you pick.
Two of our crew going over a work order before the day's calls.
From our Google reviews
5.0 stars across 1,132 reviews. Read them on our reviews page.
Aaron and Marshal did a great job. There were professional and respectful. Aaron had AC units more efficient and maintenance free.
Questions
No. In about half of Calverton’s houses that unit is a heat pump, and it needs open air on all sides whatever the season. Move or tie down the patio furniture, trash cans and anything else that can fly into it, leave the unit uncovered, and once the storm passes, clear off whatever landed on it.
The diagnostic visit is $99. The common repairs: a run capacitor $240 to $370, a contactor $290 to $425, a condensate drain cleared $175 to $420, refrigerant topped up $190 to $740. A refrigerant leak repair runs $1,850 to $2,700.
Fix the cheap parts on almost anything. Think twice about a big repair on a system over 15 years old, and about any leak on an R-22 system. The HVAC estimator prices a new system in about a minute, so you can put the two numbers side by side.
Ready when you are
Call, or send the form at the top. The tech prices the repair from the book before starting, and if it’s the end of the road 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
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 Calverton and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,132 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.