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A one-zone ductless mini split runs $7,000 to $10,000 installed in Manassas, whether for a historic downtown house, a Loch Lomond addition or a condo.
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 Manassas
The City’s historic district is the clearest case for ductless in Manassas. Its design guidelines count frame vernacular houses from 1860 to 1920 as almost half the homes there, beside Queen Anne houses, American Foursquares and bungalows built up to about 1940, and note that front porches were common before air conditioning. A house like that most likely got its ducts, if it has any, long after it was built, and the upstairs tends to be served worst. A head on the wall of each room beats new duct runs through plaster.
What shows outside is what the City reviews. The guidelines ask for outdoor HVAC equipment somewhere unobtrusive or behind landscaping or a fence, and a permit that changes a historic exterior waits on the Architectural Review Board. A window unit in an existing window is minor work City staff handle; whether a mini split’s outdoor unit and line set count as minor depends on where they go. Start with the back of the house or a side hidden from the street.
Past the city line, Loch Lomond is the other older pocket: detached houses almost without exception, 88 in 100 built before 1980. Houses that age have often grown a family room, a sunroom or a converted garage, none of them on the original duct layout. A new run off the trunk steals air from rooms already short of it, so one head on its own outdoor unit leaves those ducts alone.
Bull Run is the condo end, about half its homes in condo and apartment buildings, which Prince William treats as commercial projects for permits; the association usually decides whether an outdoor unit goes on the building at all. In Independent Hill and Buckhall the ductless room is usually a basement finished after move-in or the space over the garage, and the county lists finishing a basement, new circuits and changes to the heating and cooling as always needing a permit.
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 Manassas | 1985 | single-family houses, about 4 in 10 | electricity, about 5 in 10 | 1980s and 90s houses: the bonus room, the sunroom, the far bedroom. |
| Buckhall | 1995 | single-family houses, about 8 in 10 | electricity, about 5 in 10 | 1980s and 90s houses: the bonus room, the sunroom, the far bedroom. |
| Sudley | 1977 | townhouses, about 4 in 10 | gas, about 6 in 10 | Townhouses: the top floor, where the HOA allows the outdoor unit. |
| Independent Hill | 2000 | single-family houses, nearly all | gas, about 6 in 10 | Bonus rooms over garages and finished basements. |
| Bull Run | 1995 | condo and apartment buildings, about 5 in 10 | gas, about 7 in 10 | Condo buildings: an outdoor unit needs the association’s yes. |
| Yorkshire | 1984 | single-family houses, about 4 in 10 | gas, about 5 in 10 | 1980s and 90s houses: the bonus room, the sunroom, the far bedroom. |
| Loch Lomond | 1968 | single-family houses, nearly all | 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.
The whole City sits in ZIP 20110. It runs its own water, sewer and electric service.
Sudley and Bull Run in 20109, Yorkshire and most of Buckhall in 20111, Independent Hill in 20112, plus the county edges of 20110.
When it’s the right call
A bungalow’s upstairs is a half story tucked under a big sloping roof and a dormer, so the rooms take the afternoon sun from above, and any duct that reaches them was likely added later. A head in each of those rooms heats and cools them on a setting of their own.
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
The City’s mechanical permit covers the first-time installation of heat pumps and central air conditioning, and the replacement of gas furnaces. Source.
Prince William County lists any work that alters a home’s heating and air conditioning as permit work, but swapping an electric furnace, heat pump or air conditioning condensing unit for the same type of unit in the same spot is an ordinary repair that needs no permit. 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.
On a historic lot downtown, a townhouse row or a Bull Run condo, somebody besides you may get a say in the outside wall. Ask for the outdoor unit’s spot and the line set’s route on the quote, so the City’s staff or the association can see them before anybody drills.
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.
Excellent service and attention to detail. James was super thorough and explained everything to me. I highly recommend them for any plumbing needs
SwiftPro was responsive and easy to work with for the mini split installation. The technicians Moises and Oscar were great! Would recommend!
Where we work
Next door to Manassas: Bristow, Nokesville, Clifton, Centreville and Catharpin.
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
Often, yes. A Foursquare’s second floor is usually four rooms off a central hall, and a multi-zone outdoor unit can run a head in each: three heads run $12,500 to $18,000 installed, four run $16,000 to $21,000. Whether one outdoor unit carries them all comes down to distances the visit measures.
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 Manassas 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.