Open 24/7 for emergencies
AC replacement in Bluemont runs $5,942 to $14,450 installed, for the houses with a propane or gas furnace to keep.
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
Send this and the office calls or texts you back to set a time.
We’ll call or text this number about your request. By sending it you agree to our terms and privacy policy.
Rather talk now? (703) 997-9757
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 Bluemont
Electricity heats 54 percent of owner homes in ZIP 20135, and the Census files a heat pump under electricity, so in most Bluemont houses the outdoor unit that cools in July is the same one heating in March. When that one wears out, the answer is a new heat pump, $8,499 to $21,650 for the system. This page is for the houses with a furnace to keep: propane heats about one owner home in seven here, natural gas about 3 percent. There the condenser outside and the coil on the furnace do the cooling, and they can be replaced while the furnace stays.
Bluemont doesn’t ask much of an air conditioner. Mount Weather, the ridge station that stands in for homes up the mountain, averages 848 cooling degree days a year and about 5 days at 90 or hotter. Purcellville, the valley comparison for the village, runs 1,050 and 30.2. So the same house cools differently depending on where it sits on the slope, and a new unit picked off the old label can come out too big. An oversized AC runs in short bursts that chill the rooms before it has pulled the damp out of them.
The houses are old for central air. About a third of owner homes in 20135 predate 1960, nearly half predate 1980, and the median one dates to 1981. A farmhouse from before 1960 got its ductwork long after it was built, and those runs are often older than the condenser on them now. When the new AC goes in, its coil has to fit the furnace you’re keeping and the air those ducts can really carry, so the ducts get checked before a size gets picked.
Hail is the outdoor unit’s local hazard. Ping-pong-ball hail fell near the village on June 16, 2023, and a report near Mount Weather put it at 3.00 inches in June 2016. A new condenser’s fins bend as easily as the old one’s, so the spot is worth rethinking: out from under a roof edge that sheds ice, clear of the trees that came down in the October 2019 winds. Bluemont also straddles a county line, 68.5 percent of the ZIP’s housing units on the Clarke side, so the quote should name which county your address answers to.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
ZIP 20135 as a whole: about seven in ten of its homes are in Clarke County, most of the rest in Loudoun around the village, and a few in West Virginia.
When it’s time
Read the year on both labels. If the propane furnace was replaced in recent years and the condenser outside is the original or close to it, the cooling can be replaced by itself and the furnace kept. The new coil rides on that furnace’s cabinet and blower, so both get checked first. A $99 diagnostic settles whether the old AC deserves a repair instead.
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.
Choosing who installs it
Questions to ask anybody who quotes you, us included.
Mount Weather’s July average high is 82.4 degrees; Purcellville’s is 86.4, with about six times as many 90-degree days. A house on the ridge and one in the village can need different sizes at the same square footage. A quote that picks a size without asking about the house, its insulation and which way it faces is guessing.
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 Bluemont: Round Hill, Philomont, Purcellville, Upperville and Middleburg.
Questions
Not really. A heat pump’s outdoor unit does both jobs, so there’s no cooling-only piece to swap; it gets replaced with another heat pump matched to the air handler inside. With electricity heating 54 percent of owner homes in 20135, that’s the more common replacement here. Switching to propane heat with a plain AC is a bigger change, and the quote should price both ways.
Often it’s worth repairing instead. Mount Weather averages 848 cooling degree days and about 5 days a year at 90 or above, so a condenser up there runs far fewer hours than one in the valley, and wear follows hours. An older unit on the ridge may have real life left. A $99 diagnostic puts the repair price beside the replacement range, and you decide.
$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 Bluemont 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.