Open 24/7 for emergencies
A one-zone ductless mini split runs $7,000 to $10,000 installed in Calverton, often in a village house built long before central air, or a room a stove misses.
Price range
$7,000-$10,000
8yrs @ 7.99%
$99/mo
15yrs @ 9.99%
$75/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 1,132 reviews
One of our HVAC technicians with a new Trane outdoor unit he just installed.
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
Installed, from the price book our HVAC price estimator runs on. A zone is one room with its own indoor head, and you get the price in writing before you decide.
Ductless mini split, one zone, installed
$7,000 to $10,000
or $117/mo at 0% APR for 60 months
Ductless mini split, two zones, installed
$11,000 to $15,000
or $183/mo at 0% APR for 60 months
Ductless mini split, three zones, installed
$12,500 to $18,000
or $208/mo at 0% APR for 60 months
Ductless mini split, four zones, installed
$16,000 to $21,000
or $267/mo at 0% APR for 60 months
Ductless mini split, five zones, installed
$19,000 to $25,000
or $317/mo at 0% APR for 60 months
Ductless mini split, six zones, installed
$23,000 to $30,000
or $383/mo at 0% APR for 60 months
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
Where you land in a range is mostly the distance from the outdoor unit to the room, the kind of head and the room left in the electrical panel.
The second zone costs the most because it often needs a bigger outdoor unit. Our mini split cost guide explains.
What’s different in Calverton
The houses at the heart of Calverton were built for another century’s idea of comfort. The County’s plan dates more than half the buildings in the village’s historic district to 1920 through 1960, mostly vernacular I-houses and gable-end houses. An I-house is two stories tall and one room deep, so nearly every room has outside walls front and back, and a ductless head can go on either one with a short line set to the outdoor unit and no ductwork to find a path for.
Wood still heats a real share of houses out here: in ZIP 20119 about one owner home in eight lists wood or some other fuel as its main heat. A stove keeps its own room warm, leaves the far bedrooms cold, and does nothing in July. A head in the room the stove never reaches heats it in winter and cools it in summer, on its own remote.
A head here has to heat as well as it cools. Fauquier County’s code table sets the winter design temperature at 17 degrees, and the Warrenton 3 SE normals station, about six miles off, averages a January low of 24.8. So the outdoor unit should hold its heating output at those temperatures, mounted on a wall bracket or a stand: that station had 25 inches on the ground after the January 2016 blizzard, and in the village the County’s floodplain is one more reason to keep it up.
Out on the lots around the village the houses are younger, and across 20119 the typical owner’s house dates from 1990. Those houses have ducts, so a mini split there is for space the ducts never reached: the room over the garage, a finished basement, an addition built after the system went in.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
Calverton’s own ZIP, 20138, is post office boxes only, so the Census Bureau maps no area for it. These are ZIP 20119 as a whole, the Catlett ZIP area that holds nearly nine in ten of the Calverton Census place’s homes.
When it’s the right call
On a two-story house one room deep, the bedrooms sit right under the roof, and in plenty of older houses window units are the only cooling those rooms have had. Heads there replace the window units and add real heat for winter.
The bonus room, the sunroom, the bedroom over the garage. We check for a closed damper or a crushed duct first; sometimes that’s all it is.
An addition, a finished attic, a garage turned into a room. Stretching the ducts into it usually starves the rooms already on them.
Paperwork, locally
Fauquier County counts swapping an electric appliance for a similar one in the same spot as an ordinary repair that needs no permit. Moving an appliance to a new spot takes one. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who installs it
Questions worth asking anybody who quotes you, us included.
Ask for the heating output at a cold outdoor temperature, not only the cooling size. Fauquier’s design day is 17 degrees, and a head picked only for summer leaves the room cold in January.
If the room’s trouble is a closed damper or a crushed duct, a mini split is an expensive fix for a cheap problem. Ask what they checked first.
Ask whether it covers the line set run, the new circuit and putting the walls back, or only the equipment.
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.
SwiftPro was responsive and easy to work with for the mini split installation. The technicians Moises and Oscar were great! Would recommend!
The system we put in first
Built to take a beating. Put in by our crew.
Heat lamps, snow and rain on one outdoor unit: that’s Trane’s own film. We’re a Trane Comfort Specialist, on Trane’s own dealer locator, and when you pick a Trane, our crew puts it in.
Films: Trane’s own.
Questions
Count the rooms you actually use. Upstairs, each bedroom usually gets its own head; downstairs rooms may share one if the doorway between them stays open. Two zones on one outdoor unit run $11,000 to $15,000 installed, and three run $12,500 to $18,000.
Only at the electrical panel. The well pump already has its own circuit, and a mini split needs one too. In an older house the panel can be small or full, so the tech checks the room left in it, and the written price covers what it needs.
Installed, one zone is $7,000 to $10,000, two zones $11,000 to $15,000 and three zones $12,500 to $18,000, up to $23,000 to $30,000 for six. The HVAC price estimator gives your number.
Both. A ductless system is a heat pump, and cold-climate models keep heating well below freezing, which covers a Northern Virginia winter.
Ready when you are
Call, or send the form at the top. You get the installed price in writing before anything goes on the wall.
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 Calverton 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.