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Furnace and AC replacement in Bluemont runs $8,898 to $23,000 installed. On this slope the heating half carries the year.
Price range
$8,898-$23,000
8yrs @ 7.99%
$126/mo
15yrs @ 9.99%
$96/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 technicians with a new Trane outdoor unit he just installed beside a Northern Virginia house.
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
$8,898 to $23,000 installed for a furnace and air conditioner replaced together, 2 to 5 ton, from the same price book as our estimator. Where you land depends on the size of the house, the efficiency you pick, and what the ductwork and venting need.
Furnace and AC together, installed
$8,898 to $23,000
or $148/mo at 0% APR for 60 months
Furnace alone, keeping your AC
$4,285 to $14,040
or $71/mo at 0% APR for 60 months
Heat pump system instead
$8,499 to $21,650
or $142/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
The HVAC replacement estimator gives your house its own number. Then we measure, and the price is in writing before anything is ordered.
Two years of labor come with every install. Monthly plans are on our financing page.
What’s different in Bluemont
Heating outweighs cooling here by a wide margin. Mount Weather totals 5,302 heating degree days a year against 848 for cooling; Purcellville, the valley comparison for the village, totals 4,942 against 1,050. So when a furnace and air conditioner are replaced together, the heating half deserves most of the thinking. Whether the house sits up the mountain or down in the village changes which set of numbers it lives by.
Your fuel picks the system. Electricity heats 54 percent of owner homes in ZIP 20135, and for those a heat pump system, $8,499 to $21,650 installed, is the like-for-like swap. Propane heats about 14 percent and natural gas about 3, and those houses get a furnace and air conditioner pair. Wood or another fuel covers 24 percent and oil 4. Oil burners are not something we repair or replace; leaving oil behind for a heat pump or a propane furnace is a job we do quote.
About a third of the owner homes here predate 1960, nearly half predate 1980, and the median year is 1981, so the ductwork in many houses is older than the equipment hooked to it. Replacing both machines at once is a sensible moment to ask what shape the supply and return runs are in, so the duct question gets answered once, with the equipment, and not again in a few years.
The furnace half is permit work in both counties. Loudoun County asks for a permit on a gas furnace swap, and a unit with identical BTUs going in the same place has not needed plans since October 2025. In Clarke County, Virginia’s building code exempts only appliances not fueled by gas or oil, so a gas or propane furnace goes through the Building Department in Berryville. Where the air conditioner is the newer half, a furnace alone is $4,285 to $14,040.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
ZIP 20135 as a whole: about seven in ten of its homes are in Clarke County, most of the rest in Loudoun around the village, and a few in West Virginia.
When it’s time
When the furnace needed a part last winter and the air conditioner needs one this summer, you are paying twice to keep two aging machines going. Lay both repair estimates next to the replacement range, then decide. A diagnostic visit is $99. In a heating season of 4,942 to 5,302 degree days, the furnace has the longer working year.
Where a lot of homes heat with electricity, the indoor half is often an air handler, and the like-for-like swap is a heat pump system, $8,499 to $21,650 installed.
The label on its side names the refrigerant. R-22 hasn’t been made or imported in the US since 2020, so a leak gets expensive. Replace it on your schedule, not in July.
Permits and sign-offs
Loudoun County requires a permit to swap a gas water heater or furnace. Since October 2025, a replacement that keeps the same BTUs in the same spot needs no plans. Source.
Virginia’s building code lets a home’s mechanical appliance be replaced without a permit only when it isn’t fueled by gas or oil, so in Clarke County a gas or propane furnace swap is permit work. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who installs it
Ask every company that quotes the job, us included.
Your fuel decides which are real options. An electric house compares a heat pump system, $8,499 to $21,650, with keeping what it has; a propane house compares the pair, $8,898 to $23,000, with a furnace alone. An installer who shows one number has chosen for you. Ask for the options in writing, with what each one does about the ducts.
The old size is a guess somebody made years ago. Ask whether they measure the house and check the ductwork first. Too big short cycles; too small runs all afternoon in August.
Furnace, outdoor unit, matching coil, refrigerant lines, thermostat, permit and hauling the old one away. If it isn’t on the paper, ask.
Our free second opinion looks at the system you were quoted on and tells you what it actually needs, with our price if you want it.
Two of our crew going over a work order before the day's calls.
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.
From our Google reviews
5.0 stars across 1,132 reviews. Read them on our reviews page.
Rich did a great job. We hit it off very well. He was on time, and we promptly gathered the necessary measurements. He explained all the details. He prepared the estimate while at the house. This work is for a HVAC full replacement.
Where we work
Next door to Bluemont: Round Hill, Philomont, Purcellville, Upperville and Middleburg.
Questions
Only if both are tired. Propane homes, about one in seven in ZIP 20135, can keep a newer air conditioner and replace the furnace alone. If both labels show a similar age and the furnace has needed a repair, the pair is one install instead of two. A diagnostic visit, $99, tells you which situation you are in before you spend on either.
It can be, with a plan for the coldest hours. Mount Weather’s January low averages 22.3 degrees and Purcellville’s 24.5, and the two stations log 104.7 and 114.7 days a year at or below 32. A heat pump system leans on electric strips or a furnace on those nights, and the quote should say which one it uses.
$8,898 to $23,000 installed for the pair, by size and efficiency. A furnace alone, keeping your AC, is $4,285 to $14,040. The HVAC replacement estimator gives your house its own number.
No. If the AC is young and only the furnace failed, replace the furnace. If they’re the same age, do both: a new outdoor unit needs a matched coil, and one built for the old refrigerant isn’t rated for the new one.
Ready when you are
Call, send the form at the top, or take the HVAC replacement estimator first. We measure before we quote, and if a repair makes more sense than a new system, you’ll hear that first.
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 Bluemont 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.