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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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AC and heat pump repair in McLean and Tysons, from attic air handlers in 22101 to condo closets in 22102. You see the number before any work begins.
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 McLean
In 22101 at least half the homes have nine rooms or more, against a Fairfax County median of 6.4, and a house that big seldom cools on one system. Two is common, sometimes three, each with its own outdoor unit and thermostat, so the first question on a McLean AC call is which thermostat is losing. That’s the unit the tech opens first.
If the house heats with a boiler, the cooling is a separate machine. There’s no furnace blower for a coil to ride on, so central air brings its own air handler, usually in the attic feeding ceiling registers, or skips ducts with ductless heads on the walls. A warm July house has nothing to do with the boiler.
22102 takes in most of Tysons. Close to half its homes are in buildings of 50 units or more, and its owner homes are about half gas, more than four in ten electric. In a tower, electric usually means a heat pump in a closet that cools in summer and heats in winter, so the unit you fix in July is the one heating you in January. Some towers run fan coils on the building’s water loop instead, and then only the closet unit and its controls are yours.
Close to one home in four in 22101 went up since 2000, and a 1950s or 60s house is on its second or third air conditioner by now. Read the data plate before a big repair: a unit from before 2010 most likely runs R-22, which stopped being made in 2020, and a leak on one means setting the $1,850 to $2,700 leak repair beside a replacement price.
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 |
|---|---|---|---|---|
| McLean | 1977 | single-family houses, about 8 in 10 | gas, about 7 in 10 | Older houses on their third or fourth system, usually a gas furnace with a separate AC. |
| Tysons | 1985 | condo and apartment buildings, about 7 in 10 | electricity, about 5 in 10 | Condo and apartment buildings: small splits and fan coils, roof or balcony condensers. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIPs 22101 and 22102 as a whole: every McLean address, Tysons included.
What you’d notice
In a zoned McLean house that usually means the attic system has quit while the basement one runs on. Check its thermostat, then the pan under the attic unit: a full pan trips a float switch that shuts the system off to spare your ceiling.
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 Tysons tower, a condenser on the roof or a fan coil on the building’s water loop puts management in charge of who goes where. A company that works the towers asks for the building’s name when you book.
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.
Tyler from SwiftPro is very knowledgeable and professional on HVAC. Tech Edis and Rony are very professional and done good job to install AC
Where we work
Next door to McLean: Dunn Loring, Vienna, Falls Church, Arlington and Great Falls.
Questions
More than half the homes in 22102 are rented, and if the air conditioner came with the unit, Virginia’s landlord and tenant law puts keeping it working on the landlord. Call the owner or the management office first. When they send us, it’s the same book: a run capacitor is $240 to $370, a blocked condensate drain cleared $175 to $420.
Yes. The cooling is its own system, an outdoor unit piped to an air handler in the attic or to ductless heads in the rooms, repaired from the same price book. Say where the indoor unit is when you book: attic, closet or wall.
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 McLean 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.