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In Annandale a one-zone ductless mini split is $7,000 to $10,000 installed: a wall head for a room the 1960s ductwork serves badly.
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 Annandale
Ductless mini-splits are a bigger part of our Annandale work than anywhere else we work regularly. The housing explains why. About eight in ten homes in 22003 went up before 1980, many of them ramblers and split-levels with one furnace and a duct layout drawn for the rooms the builder put in. Family rooms, enclosed porches and finished lower levels came later, and their ducts, if they got any, were tacked onto the end of a run.
Split-levels show it most. The furnace sits on the bottom floor and sends air up a half flight and a full flight, so the top bedrooms get it last in summer, while a lower level partly below ground stays cool on the same thermostat. A head in the upstairs hall or the rec room gives that level its own control, and the central system keeps serving everything else.
About one home in five here is in an apartment or condo building, mostly garden-style buildings around Little River Turnpike and Columbia Pike and east of Heritage Drive. A condo there may have one closet system that leaves the end bedroom uncomfortable, and a single head fixes it, if the association signs off on the outdoor unit and the hole through an exterior wall, which is usually the association’s too. Ask the management office first.
In a rambler with a back addition and a sunporch, or a split-level with a hot top floor and a cold bottom one, the answer is often two heads, not one. Both on one outdoor unit come to $11,000 to $15,000 installed, three heads to $12,500 to $18,000, and pricing them together beats adding the second later: an outdoor unit sized for one head has no room for another.
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 |
|---|---|---|---|---|
| Annandale | 1967 | single-family houses, about 5 in 10 | gas, about 7 in 10 | Additions, sunrooms and upstairs rooms the old ducts barely reach. |
| Wakefield | 1968 | single-family houses, nearly all | gas, about 8 in 10 | Additions, sunrooms and upstairs rooms the old ducts barely reach. |
| Woodburn | 1968 | single-family houses, about 4 in 10 | gas, 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.
When it’s the right call
A family room or enclosed porch added onto a 1960s Annandale rambler often hangs off the last few feet of a duct run, or off nothing at all. If it’s the room everyone avoids in August and again in January, that’s where a head goes.
Plenty of older houses got central air added years after they were built, and the rooms at the end of the duct run are the ones that stay warm.
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.
The refrigerant lines, the drain and the power cable travel from the head to the outdoor unit, straight out the wall behind it in the simplest case. On a split-level or in a condo the path can climb or cross a ceiling. Ask to see it marked before you sign, so nobody decides it on install day.
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.
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 Annandale: Falls Church, Springfield, Dunn Loring, Burke and Fairfax.
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
Yes. The head mounts high on the wall, the window closes for good, and the outdoor unit goes wherever the association allows: on the ground, a balcony or a bracket on the wall.
Not usually. With gas heating about seven in ten owner homes here, a head covers the room the furnace and central air can’t reach, and the rest of the house stays on the system it has. If the whole system is due, the HVAC price estimator prices that too.
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 Annandale 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.