The rowhouse’s top floor bakes
Heat collects under an old City roof, and a radiator house has no ductwork to pull it down and out. A head on the top floor alone is often the first zone, with more to follow if it earns its keep.
In Alexandria, one ductless zone is $7,000 to $10,000 installed, the usual way a City radiator house gets cooling with no new ducts.
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 Alexandria
Inside the City we still work on boilers and radiators; on the Fairfax County side they’re rarer. A house heated by hot water through radiators was never built with a path for cold air, and cutting one through the plaster of an older City house is a renovation. A mini split skips it: a small line set through an outside wall to a head in the room, and the boiler still carries January.
A City rowhouse stacks its rooms, living space down and bedrooms above, sometimes a third floor under the roof, so it usually takes a head per floor or per bedroom on one multi-zone outdoor unit. Two heads come to $11,000 to $15,000; three heads, $12,500 to $18,000, installed. In Old Town and Parker-Gray, placement matters too. On the ground at the side or back, out of public view, the Board of Architectural Review isn’t involved; on a roof, the City wants it concealed.
More than half the City’s homes sit in condo or apartment buildings, and there ductless gets complicated. The City’s guidance for condo owners wants a listed fire-stop system wherever a new hole goes through an existing wall or floor, shown on the permit plans, and a panel upgrade needs a registered electrical engineer’s study of the whole building first. A mini split needs both a hole and a circuit. If the panel has room, it’s an ordinary job; if not, the association and the engineer come before anyone prices a head.
On the county side the ductless room is usually the one added later. Fort Hunt is nearly all single-family houses, most built before 1980, where a back family room or a basement finished decades later is the classic spot for a head. In the townhouses of Kingstowne and Franconia it’s more often a top-floor room or a lowest level somebody finished long after the sales trailer closed.
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 |
|---|---|---|---|---|
| City of Alexandria | 1970 | condo and apartment buildings, about 5 in 10 | gas, about 6 in 10 | Condo buildings: an outdoor unit needs the association’s yes. |
| Rose Hill | 1969 | single-family houses, about 7 in 10 | gas, about 7 in 10 | Additions, sunrooms and upstairs rooms the old ducts barely reach. |
| Franconia | 1986 | townhouses, about 5 in 10 | electricity, about 6 in 10 | Townhouses: the top floor, where the HOA allows the outdoor unit. |
| Fort Hunt | 1963 | single-family houses, nearly all | gas, about 8 in 10 | Additions, sunrooms and upstairs rooms the old ducts barely reach. |
| Kingstowne | 1994 | townhouses, about 5 in 10 | gas, about 7 in 10 | Townhouses: the top floor, where the HOA allows the outdoor unit. |
| Woodlawn | 1976 | townhouses, about 4 in 10 | electricity, about 6 in 10 | Additions, sunrooms and upstairs rooms the old ducts barely reach. |
| Lincolnia | 1982 | single-family houses, about 4 in 10 | gas, about 7 in 10 | 1980s and 90s houses: the bonus room, the sunroom, the far bedroom. |
| Mount Vernon | 1967 | single-family houses, about 7 in 10 | gas, about 7 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.
When it’s the right call
Heat collects under an old City roof, and a radiator house has no ductwork to pull it down and out. A head on the top floor alone is often the first zone, with more to follow if it earns its keep.
A house heated by a boiler has no ducts to carry cool air. Ductless is how it gets air conditioning without opening the plaster.
An outdoor unit on a condo building usually needs the association’s approval first, and some buildings say where it can go. Ask before you price one.
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.
The refrigerant lines, the wire and the drain between head and outdoor unit run inside the wall or along the outside of it. On an Old Town brick front or a condo building that route matters as much as the head, so ask to see it marked before you sign.
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.
Hard to find service like this in Alexandria.
…we had swift and professional responses for multiple plumbing and HVAC needs in our Rosemont Alexandria condo
He was very professional and had a great grasp of a mini-split system, the product you use and installation options in my particular space. He must be a very valued resource for your company.
Where we work
Next door to Alexandria: Arlington, Springfield, Falls Church, Annandale and Fort Belvoir.
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
Usually, yes. The City says a condo owner’s improvements have to follow the association’s governing documents, and a condenser on a balcony, a roof or the ground sits outside your unit. Ask the management office for its rules on outdoor equipment and new wall openings first.
In the rooms it serves it heats too, so it can carry spring and fall alone. In a radiator house the boiler usually stays for the coldest weeks anyway.
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 Alexandria 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.