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The diagnostic visit is $99, and a run capacitor replaced is $240 to $370 from our published price book.
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Amissville, 20106: AC and heat pump repair for propane houses and electric ones, with the part’s price before the work.
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 Amissville
In ZIP 20106 the AC you’re calling about depends on the heat. About four owner homes in ten burn propane, so the outdoor unit is usually a plain air conditioner beside a furnace. A bit over a third heat with electricity, and there the outdoor unit is probably a heat pump that carries the house in January too. Tell us which you have: the parts that wear in July are the same, but the fault list isn’t.
Heat is what breaks them. The Boston station averages about 22 days a year at 90 degrees or higher, hit 100 on July 8 and 9, 2012, and the Rappahannock zone’s heat index ran over 110 in July 2011. A capacitor or contactor that was marginal in June gives up on a day like that, and the compressor trips soon after. From the book, a contactor replaced is $290 to $425.
Storms are the other cause. Quarter-size hail fell northwest of Amissville on June 19, 2023, and trees and limbs came down in the village in 2016, 2020 and 2025. Hail dents the thin aluminum fins on a condenser, and a limb can crush the fan guard or push the unit crooked, which strains the copper lines. Switch it off before anyone inspects it.
The median owner home in the ZIP was built in 1993, and about three in ten went up since 2000. Many first air conditioners are retired by now, so a big repair on an original system deserves the replacement number beside it, and we’ll give you both. A cheap repair on a young system is the easy decision; a pricey one on an old system is where the second number earns its keep.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 20106 as a whole: about half its homes are in Culpeper County, about four in ten in Rappahannock County, where the village is, and a few in Fauquier County.
What you’d notice
A buzzing outdoor unit with a motionless fan points at the run capacitor, which gives the motor its first push. Turn the system off instead of retrying; a seized fan lets the compressor overheat. The capacitor is $240 to $370 from the book, a part a heat pump leans on in January too.
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.
That’s an airflow problem far more often than a refrigerant problem: a clogged filter, a matted coil, or a blower wheel packed with dust.
Choosing who fixes it
Questions worth asking anybody who comes out, us included.
In a ZIP where the median house dates to 1993, an estimate for a big repair on an original system deserves a second number. Ask whether the tech will price both and say which one they’d pick for their own house. We’ll tell you when a repair is a bad bet.
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
Questions
Changing a part inside the cabinet leaves the unit where it stands, and Fauquier County treats even an electric appliance swapped like for like as ordinary repair work. Moving the unit takes a permit there, and so does a gas or propane furnace. For a house on the Rappahannock or Culpeper side, ask that county’s office: Rappahannock’s Building Office is in Washington and Culpeper’s Building Department is in Culpeper.
Switch the system off at the thermostat, then look from a distance: bent fins, a crushed guard or a crooked cabinet are all worth a visit. Running a damaged unit can make it worse. A diagnostic visit is $99; any repair is priced before the tech starts.
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 Amissville 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.