Ductless mini splits in Fairfax Station.
A one-zone ductless mini split in Fairfax Station runs $7,000 to $10,000 installed, for a room the central air misses. The estimator quiz prices up to six.
- Published price ranges
- Heats and cools, room by room
- Dedicated HVAC team
Get your mini split priced
In Fairfax Station’s big houses, the room that needs a mini split is often downstairs.
Plenty of Fairfax Station basements started out unfinished. In a house from the 1980s the main ducts hang from the basement ceiling to feed the floors above, and when the lower level became a family room, an office or a guest suite, it usually got a couple of registers cut into those trunks and nothing more. It runs cold all winter and clammy in July, on a thermostat two floors up that only cares how the kitchen feels.
About 1 in 8 homes in 22039 is older than 1980, and about 150 predate 1960. A house that age has often been added onto, a den at the back, an enclosed porch, a bedroom over a later garage, each tied into ductwork drawn for the original rooms, and some of the oldest were never ducted for cooling at all. A head gives the room the ducts can’t reach its own heat and air, with no new duct runs through the walls.
On a five-acre lot the space that needs it may not be in the house at all. A workshop in a detached garage, a studio, an office over the barn: a single-zone system puts one head inside and one outdoor unit against the building, with nothing to run across the yard. If the building’s power feed is small, that gets checked before the price is final.
Most houses here already have central air in the main rooms, often two systems of it, so a ductless job tends to be a room or two, not the whole house. Where two rooms sit at opposite ends, ask for it priced both ways: one outdoor unit running two heads, or two single-zone systems with a short run each.
Where a mini split usually goes across Fairfax Station.
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 |
|---|---|---|---|---|
| Fairfax Station | 1982 | single-family houses, about 9 in 10 | gas, about 5 in 10 | 1980s and 90s houses: the bonus room, the sunroom, the far bedroom. |
| South Run | 1988 | single-family houses, nearly all | gas, about 9 in 10 | 1980s and 90s houses: the bonus room, the sunroom, the far bedroom. |
| Crosspointe | 1993 | single-family houses, nearly all | gas, about 8 in 10 | 1980s and 90s houses: the bonus room, the sunroom, the far bedroom. |
Fairfax Station houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
Fairfax Station
ZIP 22039 as a whole: every Fairfax Station address. The Fairfax Station Census place in the table also takes in streets with Fairfax mail.
- Median home built1988 Census
- Built before 1980about 1 in 10 Census
- Built since 2000about 1 in 10 Census
- Most homes aresingle-family houses, nearly all Census
- Heated withgas, about 6 in 10 Census
- Rentedhardly any Census
- A single-family house usually has wall space for the outdoor unit behind the room, which keeps the line set short.
What a ductless mini split costs in Fairfax Station.
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
- Ductless mini split, two zones, installed$11,000 to $15,000
- Ductless mini split, three zones, installed$12,500 to $18,000
- Ductless mini split, four zones, installed$16,000 to $21,000
- Ductless mini split, five zones, installed$19,000 to $25,000
- Ductless mini split, six zones, installed$23,000 to $30,000
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.
When a ductless mini split makes sense in Fairfax Station.
The lower level is cold from November to March
A finished basement fed by a couple of registers off the main trunk never catches up in winter, and turning up the thermostat upstairs only overheats the bedrooms. A head on the lower level heats it on its own setting.
One room is always wrong
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.
New space with no ducts
An addition, a finished attic, a garage turned into a room. Stretching the ducts into it usually starves the rooms already on them.
Who signs off on a mini split in Fairfax Station.
How to pick the best mini split installer in Fairfax Station.
Questions worth asking anybody who quotes you, us included.
Did they say where the water goes?
A head that’s cooling a room makes water, and it has to drain somewhere. On an outside wall above ground it usually runs out alongside the line set; in a lower level below grade, it often needs a small pump. Ask which yours gets.
Did they check the rest of the house first?
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.
Is the whole job in the price?
Ask whether it covers the line set run, the new circuit and putting the walls back, or only the equipment.
What our customers say.
Swiftpro did an excellent job installing a minisplit unit for us in our sunroom. They were super professional.
5.0 stars across 884 Google reviews. Read them on our reviews page.
Ductless mini split questions from Fairfax Station.
Our in-law suite is in the basement. Can it have its own thermostat?
Yes. Every ductless head has its own control, separate from the rest of the house, so the suite can run warmer or cooler than upstairs. A bedroom and a sitting room down there would be two zones, $11,000 to $15,000 installed.
Our older Fairfax Station house has no ductwork at all. Can it get air conditioning?
Yes. Each room that needs it gets a head, each head runs to an outdoor unit through a small hole in the wall, and because nearly every ductless outdoor unit is a heat pump, the same heads heat in winter. Three rooms run $12,500 to $18,000 installed, and the estimator quiz goes up to six.
How much does a ductless mini split cost in Fairfax Station?
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.
Does a mini split heat, or only cool?
Both. A ductless system is a heat pump, and cold-climate models keep heating well below freezing, which covers a Northern Virginia winter.
More from SwiftPro in Fairfax Station.
More from SwiftPro in Fairfax Station
Tell us which room it is.
Call, or book online and pick a window. You get the installed price in writing before anything goes on the wall.
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Fairfax Station and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 884 Google reviews. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
SwiftPro Heating, Cooling & Plumbing, 4230 Lafayette Center Dr, Suite N, Chantilly, VA 20151, (703) 997-9757. Book online, read our reviews, or see every town we serve.