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 Leesburg, from Exeter and Potomac Station out to Lansdowne, priced from our published book before any work starts.
5.0 stars across 1,131 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 Leesburg
The Census puts the median owner home in the Town of Leesburg at 1996, and about four in ten homes in town went up between 1980 and 1999. In most of those houses the builder’s air conditioner has been replaced once already, so the condenser out back is often a second unit on the original line set and ductwork. Where an original still runs, it’s thirty or older, and any repair on it deserves a replacement price beside it.
Two in three owner homes in town heat with gas: a furnace inside with the cooling coil sitting on top of it, the condenser outside. Close to three in ten heat with electricity, and in a Leesburg house that usually means a heat pump, an outdoor unit that works January and July alike. A weak capacitor on one of those leaves you stuck in either season.
Downtown, in the Old and Historic District, plenty of houses are older than central air, and the Town wants the equipment that came later kept out of view. Its design guidelines for the district put outdoor mechanical units on the side or rear of the house, screened with plantings or a fence from the street, and rule out rooftop units on the front. A replacement that moves the condenser or runs new lines up a wall is exterior work, and the time to call the Town’s preservation staff.
Lansdowne, outside the town limits with the same 20176 mail, is newer: its median owner home dates to 2005. Houses finished from about 2005 to 2010 straddle the change from R-22 to R-410A equipment, so two neighbors on one street can own systems that take different refrigerant. The label plate on the condenser says which, and it matters before anyone quotes a leak repair.
Neighborhood by neighborhood
Census figures for each place, and what that usually means for the air conditioning. Median year built and heat count owner-occupied homes only.
| Place | Median home built | Most homes are | Heated with | What the cooling usually is |
|---|---|---|---|---|
| Leesburg | 1996 | single-family houses, about 4 in 10 | gas, about 7 in 10 | 1980s and 90s houses, most on their second or third system. |
| Lansdowne | 2005 | condo and apartment buildings, about 4 in 10 | gas, about 8 in 10 | Newer houses: many original systems at 15 to 25 years. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
Inside the town limits: the Old and Historic District downtown, Exeter and Carrvale inside the bypass, Potomac Station and Edwards Landing outside it.
Lansdowne only. It’s the one Census place outside the town limits, so the farms and lots beyond it aren’t in these figures.
What you’d notice
About three in ten homes in town are townhouses, and in a three-level one with the only thermostat on the main floor, the bedrooms under the roof can run several degrees warmer. Check the upstairs returns and the filter before blaming the condenser.
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.
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 the historic district the Town’s guidelines want outdoor units at the side or back, screened from the street. Ask about it before the new pad is poured.
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 1,131 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 Leesburg: Paeonian Springs, Hamilton, Waterford, Ashburn and Middleburg.
Questions
A repair, no: a new capacitor or a cleared drain line changes nothing on the outside. The Town requires a Certificate of Appropriateness for every exterior alteration in the Old and Historic District, even in-kind replacement of material, so check with preservation staff before a replacement. They keep walk-in hours at 15 North King Street on Wednesdays.
Yes, one book on both sides of the line: a run capacitor $240 to $370, a contactor $290 to $425, a condensate drain cleared $175 to $420. Close to four in ten Lansdowne homes are in condo buildings, so before a replacement there, check the association’s documents for where a condenser may sit.
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 Leesburg and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,131 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.