Open 24/7 for emergencies
A Middleburg AC or heat pump repair opens with the $99 diagnostic visit. After hail or a falling limb, that visit goes over the outdoor unit top to bottom.
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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 Middleburg
Middleburg sits on a low rise in the Piedmont, about 490 feet up, and its summers run a little gentler than the suburbs’ to the east. The Purcellville co-op station, 12 miles north at nearly the same height, puts the typical July afternoon at 86.4 degrees and tallies around 1,050 cooling degree days against Dulles Airport’s 1,233. Gentler isn’t mild: western Loudoun’s weather stations recorded heat indices past 110 on July 28, 2023.
The cooling season is also the short one. The Census finds 582 of the ZIP’s 927 owner homes heating with electricity, which around here mostly means a heat pump: the same outdoor unit cools from June and heats from November. Purcellville counts almost five heating degree days for every cooling one, so most of a heat pump’s hours here are winter hours. A contactor pitted by a winter of starts often quits in the first muggy week of June; replacing it runs $290 to $425.
The storms are what break things. On June 16, 2016, golf ball hail fell just northwest of town, and east of it a spotter reported trees down and windows damaged by hail. Thunderstorm gusts estimated near 69 mph knocked trees down along Washington Street on June 21, 2021, and on June 22, 2022, hundreds of trees, branches and wires came down between Middleburg and Upperville. Even an EF0 tornado touched down two miles east of town in May 2014, laying a large tree across Sally Mill Road.
After a storm, walk out to the condenser before you switch it back on. Branches in the top grille, the unit knocked crooked on its pad, a kinked copper line or fins beaten flat all mean leave it off, and so does high water around it. Phone us and we’ll go over all of it, the coil, the wiring and the refrigerant pressures, before it runs again. A surge that cooked a run capacitor is a $240 to $370 part.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 20117 as a whole: every Middleburg address, the Town and the farms around it, about a tenth of the land in Fauquier County. The Census place for the Town alone has too few homes for steady figures.
What you’d notice
Hailstones knock the coil’s thin aluminum fins flat, and a coil starved of air runs hot and hard. A few bent fins are cosmetic; a whole face hammered flat can wear out a compressor over a summer. The $99 diagnostic visit says which you have.
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.
Where the house heats with a heat pump, which is most of 20117, the air conditioner is half of it. On a summer call, ask the tech to switch it into heating for a minute and test the defrost controls while the panel’s open.
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.
Moises , he fix my A/C July 1 He is profetional , excelent Tech Only 1 day Thank you SwiftPro
Where we work
Next door to Middleburg: Philomont, Aldie, Round Hill, Hamilton and Purcellville.
Questions
The drain. Houses older than central air, and 333 of the ZIP’s 1,416 homes predate 1940, often had cooling added as an attic air handler, where a blocked condensate line overflows the pan onto the plaster below. Clearing it runs $175 to $420, and a pan sensor that cuts the cooling before it spills costs little next to a ceiling.
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 Middleburg 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.