Open 24/7 for emergencies
The diagnostic visit is $99, and a run capacitor replaced is $240 to $370 from our published price book.
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AC and heat pump repair in Philomont: 30.2 days a year at 90F or hotter, and electric heat in about 42 percent of owner homes.
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 Philomont
The Purcellville weather station, 6.2 miles north-northeast, averages a July high of 86.4F and counts 30.2 days a year at or above 90F. Western Loudoun’s July 28, 2023 heat wave pushed heat indices past 110F on mesonets across the zone. In weather like that the small parts decide whether the house stays cool. Start with the diagnostic visit at $99. A capacitor is $240 to $370, a contactor $290 to $425, and a condensate drain that has clogged runs $175 to $420.
Electricity heats about 42 percent of owner homes in ZIP 20132, the Purcellville-area ZIP that Philomont’s Census figures come from, and the Census files heat pumps under electric heat. A heat pump is your air conditioner in July and your heat in January, so one failure can leave you uncomfortable in either season. Philomont’s low reached -2F on the morning of January 23, 2025, which is a hard test for the cold-weather side of the machine.
Propane heats another 42 percent, and in those houses the air conditioner usually shares an air handler and blower with a propane furnace. A blower wheel that has gone out of balance shows up whichever season the system is running, and replacing one is $300 to $440. The median owner home dates to 2000, and about 48 percent of homes went up since then, so many wheels, motors and coils here are in mid-life.
The electrical side takes the beating when storms roll through. Trees came down, some on wires, at Snickersville Turnpike and JEB Stuart Road in June 2016, and trees blew across the roads south of Philomont on July 16, 2024. A weak capacitor tends to give out when power returns and the system tries to start. Turn the thermostat off while the lights are out, then bring the system back once the power has held for a bit.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
Philomont’s own ZIP, 20131, is post office boxes only, so the Census Bureau maps no area for it. These are ZIP 20132 as a whole, the Purcellville ZIP area Philomont sits in, the Town of Purcellville included.
What you’d notice
A condenser fan turning while the compressor stays silent often means a weak run capacitor, a part at $240 to $370 in our price book. On a 90F Philomont afternoon, run time on a struggling system climbs fast, so it is worth catching on the first warm day instead of the hottest one.
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.
A house from the 2000s often still has its first air conditioner. Anything installed before 2010 usually runs R-22, which hasn’t been made since 2020, so a leak on one is a repair-or-replace question.
Choosing who fixes it
Questions worth asking anybody who comes out, us included.
About 42 percent of owner homes here heat with electricity, many of them with heat pumps, and another 42 percent with propane. Which one you have changes what gets checked. A heat pump needs its heating side looked at too, not just the cooling.
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.
Alex was very professional and the 2 technicians Oscar, and Derek was fast and efficient. They replace my A/C unit within the next day
Where we work
Next door to Philomont: Middleburg, Round Hill, Bluemont, Purcellville and Hamilton.
Questions
Thermostat on cool, breaker on, filter clean. If the outdoor fan spins but the compressor only hums, a weak capacitor is a common cause, $240 to $370 to replace. A contactor that has worn out is $290 to $425. The diagnostic visit is $99, and the tech prices any repair before starting it.
Turn the system off so it stops making more. A backed up condensate line is the usual cause, and where a float switch is fitted it shuts the system down to protect the ceiling. Clearing the drain runs $175 to $420.
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 Philomont 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.