The back ell is the coldest room in the house
Built on after the main house, the ell is usually the far end of the duct run, if a run reaches it at all. A head there gives it its own setting without rebalancing the ducts that serve everything else.
Casanova, 20139
Ductless mini splits in Casanova.
A one-zone ductless mini split in Casanova runs $7,000 to $10,000 installed, often for an old I-house’s back ell or a room the ducts never reached.
$117/mo60mo @ 0% APR
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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- Published price ranges
- Heats and cools, room by room
- Dedicated HVAC team
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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
What a ductless mini split costs in Casanova.
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 Casanova
Casanova’s I-houses are one room deep, and that makes a head easy to place.
Most of the historic houses in Casanova’s village are I-houses from roughly 1880 to 1910: two stories, one room deep, a center door with a room to either side, and often a wing or ell off the back. Fauquier County’s village plan describes them that way, and the shape helps a ductless job. Every main room has an outside wall, so each head can hang on the wall the outdoor unit sits behind, with a short line set and no long hidden runs through plaster.
The ell is often where the kitchen and a bath ended up, built on after the main block, and it’s usually the room a later central system serves worst, at the far end of the longest duct if a duct reaches it at all. One head in the ell on its own outdoor unit is $7,000 to $10,000 installed; a head there and one in an upstairs bedroom on a shared outdoor unit is $11,000 to $15,000.
The district’s houses wear standing-seam metal roofs, and a metal roof drops its snow in one slide. In the January 2016 blizzard southern Fauquier got 18 to 30 inches, and a CoCoRaHS observer a few miles west-southwest of Casanova measured 30 inches on the ground. So the outdoor unit goes on a gable end or a bracket clear of the eave line, high enough to stay above the drifts, and each head’s condensate line drains somewhere it can’t freeze across a walk.
A head here works both seasons. Warrenton 3 SE, the NOAA normals station a few miles west-northwest, averages about 21 days a year at 90 or above and a January high of only 42, and the airport south of the village read 3 below on January 27, 2026. Size each head for the room’s coldest morning as well as its hottest afternoon, and know what backs the room up in an outage, since a head runs on electricity alone.
By the numbers
Casanova houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
Casanova
Casanova’s own ZIP, 20139, is post office boxes only, so the Census Bureau maps no area for it. These are ZIP 20119 as a whole, the Catlett ZIP area Casanova sits in.
- Median home built1990 Census
- Built before 1980about 4 in 10 Census
- Built since 2000about 2 in 10 Census
- Most homes aresingle-family houses, nearly all Census
- Heated withelectricity, about 5 in 10 Census
- Rentedabout 2 in 10 Census
- A single-family house usually has wall space for the outdoor unit behind the room, which keeps the line set short.
- Where the heat is already a heat pump, a ductless head is the same kind of equipment, sized for one room.
When it’s the right call
When a ductless mini split makes sense in Casanova.
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.
Paperwork, locally
Who signs off on a mini split in Casanova.
Fauquier County
Fauquier County counts swapping an electric appliance for a similar one in the same spot as an ordinary repair that needs no permit. Moving an appliance to a new spot takes one. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who installs it
How to pick the best mini split installer in Casanova.
Questions worth asking anybody who quotes you, us included.
Did they walk the outside walls with you?
In a Casanova house the decisions are outside: which wall the outdoor unit hangs on, where the line set runs and under what cover, and where the roof’s snow comes down. Ask to walk it before the job is priced.
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.
Two of our crew going over a work order before the day's calls.
From our Google reviews
What our customers say.
5.0 stars across 1,132 reviews. Read them on our reviews page.
Swiftpro did an excellent job installing a minisplit unit for us in our sunroom. They were super professional.
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
Ductless mini split questions from Casanova.
Will a mini split change the look of a historic Casanova house?
Less than new ductwork would change the inside. What shows is the outdoor unit, a covered line set down the wall and the head in the room. Putting the outdoor unit on a side or rear wall, out of view from the road, keeps the front of the house as it was.
How many zones does a Casanova I-house need?
Often one per main room you want on its own setting: two down and two up in the main block, plus the ell. Three zones run $12,500 to $18,000 installed and four run $16,000 to $21,000; the HVAC price estimator gives your house its number.
How much does a ductless mini split cost in Casanova?
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.
Ready when you are
Tell us which room it is.
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 Casanova 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.