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A one-zone ductless mini split runs $7,000 to $10,000 installed in Gainesville, for the room a window unit can’t serve or the older house that never had 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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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 Gainesville
Virginia Oaks has a rule that makes ductless worth a look. A window air conditioner is allowed there only in a window on the back of the house, out of sight from the front, and only from May through October. A front bedroom that never cools, or a room that needs heat in March, is where a wall head fits instead. The association’s list of changes that skip an application covers replacing an exterior air conditioner, not adding one, so take the plan for the outdoor unit to the design review committee first.
Where the outdoor unit sits matters too. Virginia Oaks allows no permanent electrical equipment of any kind on association property, so in its villas and townhomes the outdoor unit and its line set stay on your own lot. Look at the ground behind the house before picking the far wall for a head: a longer line set around a corner costs more and shows more.
20155 isn’t all new construction. The Census counts 323 homes in the ZIP built before 1970, and 86 of them before 1940. A house that old may have spent decades heated by a boiler, a stove or baseboard, with no duct anywhere, and cutting ducts into its walls is the expensive way to cool it. A multi-zone system puts a head in each room that needs one: two zones run $11,000 to $15,000 installed, three run $12,500 to $18,000.
Expect a county permit. Prince William says alterations to a house’s mechanical systems and new electrical circuits always need one, and a mini split adds a heat pump and usually its own circuit. Condo buildings are commercial projects under the county’s rules, so in Heritage Hunt’s condominiums, start with the association, and the county’s commercial process applies.
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
In Virginia Oaks a window unit is allowed only at the back of the house. For a front room that runs hot every summer, a wall head on its own setting does the job within the rules, once the design review committee has seen where the outdoor unit goes.
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.
Choosing who installs it
Questions worth asking anybody who quotes you, us included.
In a Gainesville association, the outdoor unit’s spot decides the approval and a good part of the price. Ask for it marked on a photo or a sketch before you sign, so the committee sees what will actually be built.
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.
We had a mini split ac/heat unit installed. They were here when they said they would be, were very professional, and did a very nice job.
Where we work
Next door to Gainesville: Catharpin, Haymarket, Broad Run, Bristow and The Plains.
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
The guidelines don’t rule it out, but they ask two things. The outdoor unit stays on your own lot, since no permanent electrical equipment may sit on association property, and the plan goes to the design review committee first, because adding equipment isn’t on its no-application list.
It depends on how many rooms get a head. Three zones run $12,500 to $18,000 installed, four run $16,000 to $21,000, and six run $23,000 to $30,000. The HVAC price estimator narrows it to your house before anyone visits.
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 Gainesville 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.