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A one-zone ductless mini split runs $7,000 to $10,000 installed in Lorton, often for a basement finished long after the builder’s ducts went in.
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
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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 Lorton
More than four in ten Lorton homes were built since 2000, and many single-family houses from those years had a basement finished later: a rec room, a guest suite, an office. The builder ran the ducts for the floors above, and a supply or two cut into the trunk rarely keeps a whole basement comfortable. A ductless head gives it heating and cooling of its own without borrowing air from upstairs.
Mason Neck is the opposite case. Its houses are all single-family, the typical owner’s from 1973, and close to two in three owners heat with electricity. Some houses of that age may have been built with baseboard heaters and no ductwork at all, which leaves window units for the summer. A multi-zone system, one outdoor unit running heads in two or three rooms, heats and cools them without cutting a duct chase through a single wall. Two zones run $11,000 to $15,000 installed, three run $12,500 to $18,000.
In the Lorton Census place about a quarter of homes are in condo and apartment buildings and about a third are townhouses. In a condo, an outdoor unit on a wall or balcony needs the association’s approval before anything is drilled, and some buildings won’t allow one. In a townhouse the line set usually runs down the back wall to a pad or a wall bracket, and the association’s rules decide which.
The room over the garage is the other usual Lorton call. It sits at the far end of the upstairs duct run, over a space nobody heats, with outside walls on three sides and a roof overhead, so it’s often the warmest room in July and the coldest in January. A head sized for those walls usually settles it.
Neighborhood by neighborhood
Census figures for the owner-occupied homes in each place, and the room a ductless head usually ends up in.
| Place | Median home built | Most homes are | Heated with | Where ductless usually fits |
|---|---|---|---|---|
| Lorton | 2001 | single-family houses, about 4 in 10 | gas, about 7 in 10 | Bonus rooms over garages and finished basements. |
| Newington | 1981 | townhouses, about 6 in 10 | electricity, about 6 in 10 | Townhouses: the top floor, where the HOA allows the outdoor unit. |
| Laurel Hill | 2002 | single-family houses, about 4 in 10 | gas, about 8 in 10 | Bonus rooms over garages and finished basements. |
| Mason Neck | 1973 | single-family houses, nearly all | electricity, about 6 in 10 | Additions, sunrooms and upstairs rooms the old ducts barely reach. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
ZIP 22079 as a whole: every Lorton address. Most of Newington, in the table, has Springfield mail.
When it’s the right call
In a house that never had ductwork, a window unit in each bedroom is how the summer gets handled, and each one takes a window. Two or three ductless heads on one outdoor unit replace them, and they heat in winter as well.
In a three-level townhouse the heat rises to the bedrooms, and one thermostat can’t please two floors. A head upstairs gives that floor its own setting.
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.
Paperwork, locally
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.
Every head needs a refrigerant line set and a drain for the water it pulls out of the air. On a finished basement wall or a front elevation those runs show, so ask where each one goes and what covers it before the price is final.
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 did an excellent job installing a minisplit unit for us in our sunroom. They were super professional.
Where we work
Next door to Lorton: Fort Belvoir, Springfield, Woodbridge, Fairfax Station and Burke.
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
In a smaller house, often yes, with a head in each main room on one or two outdoor units. In a bigger one it usually works best alongside the heat that’s already there. Five zones run $19,000 to $25,000 and six run $23,000 to $30,000, and the HVAC price estimator sets your range.
Yes, where the association allows an outdoor unit. Bring us the building’s rules on exterior equipment, and the head and outdoor unit get priced to fit inside them, in writing, before anything goes on the wall.
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 Lorton 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.