Open 24/7 for emergencies
AC replacement in Lovettsville runs $5,942 to $14,450 installed, for houses keeping their propane or gas furnace.
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 Lovettsville
Propane heats about 44 owner homes in 100 inside the town and natural gas fewer than 8, so roughly half of Lovettsville has a furnace with the cooling hung off it: a coil on top, a condenser outside. Those are the houses where the air conditioner can be replaced by itself. The other big share, about 42 in 100, heats with electricity, which in houses like these usually means a heat pump doing both jobs, and replacing that is a heat pump system, $8,499 to $21,650. Some propane houses have one too, out front with the furnace as backup, so look at what’s on the pad before pricing anything.
Summers here are short but real. The Purcellville co-op, the nearest long-record station, averages 1,050 cooling degree days and about 30 days a year at 90 or above, with a July high of 86.4. A house that cools that few hours wants an air conditioner sized to its real summer load, not the biggest box that fits the pad; a unit too large runs short cycles and never gets the damp out. The size comes from the house itself, its insulation, its windows and which way it faces, measured before a model gets picked.
Inside the limits the typical owner’s home dates from 2007, with 222 homes from the 2000s and 232 from the 2010s. A builder condenser on one of the early houses is closing in on twenty, and one set before 2010 probably holds R-22, which went out of production in 2020. The 2010s units run on R-410A, still serviceable, so a leak or a fan motor on one is usually a repair. A new AC runs on one of the newer A2L refrigerants and comes with an indoor coil made for it, set on the propane furnace you keep.
The old center is another kind of house. Most of its historic buildings went up between 1880 and 1930, long before central air, and the Census counts 88 homes in town from 1939 or earlier. In those, the ducts and the air handler were fitted in later, often in the attic, with the drain line threaded down through a wall. When the condenser outside gets replaced, the coil and the drain pan up there get replaced or checked with it, because a coil swap is the one time anyone has that cabinet open.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
When it’s time
On July 28, 2023, weather stations across western Loudoun measured heat indices above 110, and that’s the afternoon a worn compressor picks. On a condenser that came with a 2000s house, the $99 diagnostic is still worth having: it tells you whether this is a capacitor or the end of the road, with the repair priced beside the replacement range.
A house from the 2000s often cools with the condenser it was built with. Past fifteen years, compressors and fan motors start to go, one after another.
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.
In Lovettsville the two look alike from the yard, and they’re close to even in number. Ask the installer to read the old unit’s data plate and the thermostat, then quote like for like: an AC for a propane or gas furnace, a heat pump where one stands now. A plain AC where a heat pump used to be hands all of the heating back to the propane tank.
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.
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 Lovettsville: Waterford, Paeonian Springs, Hamilton, Purcellville and Leesburg.
Questions
The Town handles zoning and leaves building permits to Loudoun County; its own zoning permit form tells owners to check with the County. Lovettsville isn’t one of the three Loudoun towns with a historic district of their own, so in the old center there’s no town board reviewing the condenser. On the newer HOA streets, read the association’s rules before the outdoor unit moves.
Shut the cooling off and pull the disconnect beside the unit before you go near the limb. Trees came down along Milltown Road on August 3, 2024, and a mesonet in town clocked a 63 mph gust on February 16, 2025, so it happens here. Bent fins and a dented grille are often a repair. A crushed coil or a cracked refrigerant line on a unit near twenty usually isn’t, and the diagnostic prices both.
$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 Lovettsville 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.