Open 24/7 for emergencies
An AC tune-up in The Plains is $99 per system. Summer here brings about 21 days of 90 or hotter, then storms that drop trees.
Get your price in writing
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Rather talk now? (703) 997-9757
5.0 stars across 1,132 reviews
One of our HVAC technicians with an air conditioner on a Northern Virginia street, a SwiftPro box truck and pickup parked 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
One price per system, $99. We go through it before a Northern Virginia July finds the weak part for you. Anything it turns up is priced in writing before any work, and if it can wait, we say so.
AC tune-up, one system
$99
Furnace tune-up, one system
$99
Heat pump, boiler or ductless mini split tune-up, one system
$99
Comfort+ membership, a cooling maintenance visit every spring included
$199 a year
A house with two systems books two tune-ups, one for each, and a heat pump or a ductless mini split is the same $99 a system. The heating side, a furnace or a boiler, gets its own tune-up in the fall at the same price.
With Comfort+ membership at $199 a year, the cooling maintenance visit comes every spring, along with a heating maintenance visit, a water heater flush with a sewer camera inspection and a dryer vent cleaning.
What’s different in The Plains
NOAA’s 1991 to 2020 normals for the Warrenton 3 SE station, the nearest long temperature record, about 12 miles south, put the average July high near 85 and count about 21 days a year at 90 or hotter. In July 2019 the heat index across Northern Fauquier passed 110. Those are the afternoons a weak capacitor or a dusty coil finally quits; a spring tune-up finds either one in April.
Across 20198 about six owner homes in ten heat with electricity, usually a heat pump, so the unit facing July already got the house through roughly 98 freezing nights. About one in five heat with propane, and there the cooling is its own outdoor unit sharing the furnace’s blower. Same $99 a system either way.
Then come the storms. NOAA’s storm records list numerous trees down in The Plains on July 12, 2022, Bunker Hill Road among them; dozens of trees and wires down along Halfway Road and The Plains Road in 65 knot gusts on August 7, 2023; more on that road on August 3, 2024; and trees down south of town by Old Tavern Road on July 16, 2025. Four summers running. A big tree near the house puts the outdoor unit within reach of a limb.
After a storm, walk out before you count on it. Look for limbs on the cabinet, flattened fins, the unit shoved off level on its pad, and the disconnect box beside it. If the power went out, give the system a few minutes once it’s back; if it won’t start, reset its breaker once and leave it. FEMA maps a flood zone a few hundred yards from the center of town, and a 2017 flash flood closed Old Tavern Road half a mile out: if water reached the unit, keep it off. Then call us after a storm and we’ll check it all.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
ZIP 20198 as a whole, the Town included: its own homes are too few for steady Census figures.
When to book it
Storm power that flickers on and off is hard on an outdoor unit’s capacitor and contactor. If the fan won’t spin or the unit hums without starting, switch the cooling off at the thermostat and call. Left trying, it can take the compressor with it.
It cools all summer and heats all winter, so it piles up more hours in a year than an air conditioner that sits idle from October to May.
A weak capacitor is a small fix on a mild day in April. Found by a July heat wave, it’s a house with no cooling.
Choosing who tunes it up
Questions to ask anybody who books you, us included.
Where storms have put trees and wires down four summers running, the capacitor and contactor take the beating. Ask whether the tech tests them and writes down the readings.
Ask what gets cleaned and what gets checked, and whether a second system costs extra. A number with no list behind it is hard to hold anybody to.
Ask for the findings in writing, with a price on anything that needs fixing and an honest word on what can wait. A tune-up you never see written down is one you take on faith.
An air conditioner doesn’t use up refrigerant. Low means it’s leaking somewhere, and a company that tops it up every spring is selling you the same refrigerant twice.
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.
Quick response, Elvis was knocking my door in a couple of hours after my call to the office. He did full inspection for both HVAC units, and answered all my questions. Both systems are working well. I always have very pleasant experience with SwiftPro
Where we work
Next door to The Plains: Broad Run, Haymarket, Rectortown, Marshall and Gainesville.
Questions
If it still runs, yes: the tune-up looks over the whole system, cabinet and coil included, and anything bent gets a written price first. If it won’t run at all, say so when you call; that’s a repair visit.
No. The Warrenton station’s normals put the last spring freeze around April 9, so by late April a heat pump is mostly done heating and the cooling side can run for real, with May and June left to fix what turns up.
$99 per system, the same for a central air conditioner, a heat pump or a ductless mini split. A house with two systems books two. If the tune-up turns up a repair, you get its price in writing before any work, and you decide.
Once a year, in the spring, before the first heat wave. The heating side gets its own visit in the fall. The filter needs attention more often, every one to three months, and it’s the cheapest thing on the list.
Ready when you are
Call, or send the form at the top. Anything the tune-up turns up gets priced in writing before anybody touches it, and if it can wait, you’ll hear that too.
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 The Plains 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.