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McLean’s gas-heated houses get a new central air conditioner for $5,942 to $14,450 installed, the furnace left in place. Tysons leans to heat pumps.
Price range
$5,942-$14,450
8yrs @ 7.99%
$84/mo
15yrs @ 9.99%
$64/mo
Monthly figures on the starting price, the whole price financed, on approved credit. The lender sets the final terms. How financing works
Get your price in writing
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5.0 stars across 1,131 reviews
One of our HVAC technicians moving a new condenser up a driveway, the van behind him.
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 our estimator runs on, for a central air conditioner on its own, keeping the furnace you have. A single-stage unit on a small house sits near the bottom; a variable-speed one on a big house, near the top.
A central air conditioner alone, keeping your furnace, installed
$5,942 to $14,450
or $99/mo at 0% APR for 60 months
An air conditioner and furnace together, installed
$8,898 to $23,000
or $148/mo at 0% APR for 60 months
A heat pump in the AC’s place, installed
$8,499 to $21,650
or $142/mo at 0% APR for 60 months
Diagnostic visit, if it may be worth fixing
$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
The HVAC replacement cost estimator narrows it to your house. Then a tech measures, and you get the installed price in writing before anything is ordered.
With Comfort+ membership at $199 a year, the diagnostic visit is included, and half of each repair bill is banked toward replacing that system, up to $1,500.
What’s different in McLean
In 22101 about 77 percent of owner homes heat with gas, and 38.8 percent of all its homes went up between 1950 and 1969. A house like that has been through two or three air conditioners already. What it usually hasn’t replaced is the ductwork, laid out for the first system, back before the family room or the finished basement was added. So a new AC on the furnace here gets sized from the house and its return. An oversized condenser on a 1960s return runs short, loud cycles and leaves the rooms feeling clammy.
Read the label on the condenser before deciding anything. A unit put in before 2010 most likely holds R-22, and with that refrigerant out of production since 2020, each leak repair on one draws on a dwindling supply. An R-410A unit can still be serviced, and if it’s young, a repair may be the better money. About 15 percent of 22101’s homes went up in 2010 or later, some where an older house came down, and those are still on their first systems, often one big unit split into zones with a thermostat on each floor.
Boiler houses are McLean’s own case. McLean is where we see boilers most. Hot-water heat is a regular part of our McLean heating work, far more than anywhere else we go. In those houses no furnace blower waits for a cooling coil, so the central air came with an air handler of its own, usually in the attic above the bedrooms. Replacing that AC means the outdoor unit plus the coil in the attic air handler, or the whole air handler if it’s worn, and the boiler stays as it is. The quote should say which, and where the drain runs.
22102 is a different McLean. It takes in most of Tysons, and 46.2 percent of its homes sit in buildings of 50 units or more. Electricity heats 44.6 percent of its owner homes, which in a tower usually means a closet heat pump, replaced as a heat pump rather than an AC, and some towers run closet units off the building’s water loop, so management comes first. The 22102 houses and townhouses on gas, about half the owner homes, are where an AC-only swap fits. Fairfax County permits either job as mechanical work, with an A2L certification for the newer refrigerants.
Neighborhood by neighborhood
Census figures for the owner-occupied homes in each place, and what that usually means for the AC that’s there now.
| Place | Median home built | Most homes are | Heated with | The AC there now |
|---|---|---|---|---|
| McLean | 1977 | single-family houses, about 8 in 10 | gas, about 7 in 10 | Gas furnaces with central air, often on the second or third AC. |
| Tysons | 1985 | condo and apartment buildings, about 7 in 10 | electricity, about 5 in 10 | Condo and apartment buildings: mostly heat pumps, few AC-only systems. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
ZIPs 22101 and 22102 as a whole: every McLean address, Tysons included.
When it’s time
A condenser that cycles every few minutes on a mild June day is often too big for the house, which happens when a larger unit was set on ducts sized for a smaller one. It chills the air fast without pulling the moisture out, so rooms stay sticky. If yours does that and it’s due anyway, replacement is the chance to size it to the house.
An air conditioner put in before 2010 most likely holds R-22, which hasn’t been made since 2020. A leak on one of those usually ends the repair road.
It’s the pump at the heart of the outdoor unit and its costliest part. Out of warranty on an older unit, the repair can come close to half the price of a new AC, the point where Goodman says replacing may be the better money.
Permits, locally
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who installs it
Questions to ask anybody who quotes you, us included.
In a 1950s or 60s McLean house the return was cut for the first system, and the rooms added since all pull on it. A quote that sizes the AC without checking the return and the supply runs can hand you a condenser the ducts can’t feed. Ask what the return measured and whether the size changed because of it.
Ask how they picked the size. Copying the old nameplate repeats whatever was guessed when the house was built.
The outdoor unit and the coil on the furnace are rated as a pair. Ask whether the quote replaces both, and what happens to the line set.
A good company puts the repair price next to the replacement range and lets you choose. Already holding somebody’s big number? Take the free second opinion first.
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.
On spec and on price for our A/C replacement. Showed up on time and all went as promised
Where we work
Next door to McLean: Dunn Loring, Vienna, Falls Church, Arlington and Great Falls.
Questions
The owner’s, if the system came with the unit: Virginia’s landlord and tenant law has landlords keep the air conditioning they supply in good and safe working order. More than half the homes in 22102 are rented, 65.7 percent in the Tysons Census area. Start with the owner or the management office, and when they send us, the written price goes to them.
Usually, yes. Newer 22101 houses often run one big system split into zones, with dampers in the ducts answering to a thermostat on each floor. That’s one condenser and one coil, priced as a single AC. Ask whether the new unit works with the zone board you have. Three outdoor units would be three systems, each priced on its own.
$5,942 to $14,450 installed for a central air conditioner on its own, keeping the furnace you have; size and efficiency set where yours lands. An AC and furnace together run $8,898 to $23,000. The HVAC replacement cost estimator gives your house its own number.
It’s worth pricing. A heat pump cools exactly like an AC and also heats on mild days, so with your gas furnace it becomes dual fuel. A heat pump system runs $8,499 to $21,650 installed, and we’ll price it both ways.
Ready when you are
Call, or send the form at the top. A tech measures the house and puts the installed price in writing before anything is ordered, and if the old AC is worth fixing, 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 1,131 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.