Open 24/7 for emergencies
AC and heat pump repair in The Plains starts with a $99 diagnostic visit, and every part is priced from our book before the work begins.
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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 The Plains
Natural gas is rare in this corner of Fauquier. Of the 589 owner homes the Census counts in ZIP 20198, 349 heat with electricity, 134 with propane and just 16 with a gas line. Electric heat out here usually means a heat pump, so the unit beside the house cools all summer and heats the rest of the year. A contactor with pitted points gets no season off; a new one runs $290 to $425.
In the propane houses, the air conditioner outside usually shares the furnace’s blower inside. A blower wheel packed with dust starves the coil in July, one of the usual reasons a coil ices over, and weakens the heat in February. Pulling it and cleaning it is $300 to $440.
NOAA’s 1991 to 2020 normals for its Warrenton 3 SE station, about 12 miles south, put the average July high near 85, with around 21 days a year at 90 or above. Heat waves are when weak parts give out: the Weather Service estimated heat indices above 115 across northern Fauquier on July 22, 2011, and above 110 on July 20, 2019. A run capacitor that’s been fading all season tends to quit on afternoons like those, $240 to $370 to replace.
On July 12, 2022, a thunderstorm blew down numerous trees in The Plains, Bunker Hill Road near Featherstone Lane among them, and on August 7, 2023, gusts estimated at 65 knots took down dozens of trees and wires along Halfway Road and The Plains Road north of town. After a storm like those, look the unit over before the cooling goes back on: a branch across the top grille, a copper line kinked where it leaves the cabinet, the cover knocked off the disconnect box. A surge when the power returns can also damage a capacitor or the control board. Call us after a storm and we’ll check it all before it runs.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 20198 as a whole, the Town included: its own homes are too few for steady Census figures.
What you’d notice
FEMA maps a Zone A flood hazard area within about 300 meters of the center of town, and flash floods closed Old Tavern Road in August 2017 and left roads near town under standing water in September 2023. If water rose over the pad, leave the breaker off. Wet controls and a soaked fan motor need a look before that unit runs again.
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.
In a heat pump, summer cooling and winter heat share one compressor, one outdoor fan and one set of controls. Ask the tech to check the defrost board while the panel is off. A failing one costs the same $450 to $1,150 in August as in January, minus the cold house.
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.
SwiftPro was able to schedule a repair visit that same day when our a/c was blowing warm air. They sent out a qualified technician who communicated effectively and resolved our problem quickly. He also made a few recommendations to keep our unit in working order. Thanks Jaime for the great job!
Where we work
Next door to The Plains: Broad Run, Haymarket, Rectortown, Marshall and Gainesville.
Questions
Once the power’s been steady for a while, usually yes. Switch the cooling on and listen: the fan outside should start with the compressor. If the breaker trips, or the unit hums while its fan sits still, turn it off and book the $99 diagnostic visit.
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 The Plains 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.