Furnace and AC replacement in Bluemont.
Furnace and AC replacement in Bluemont runs $8,898 to $23,000 installed. On this slope the heating half carries the year.
- Your price range up front
- Sized to the house, not the old label
- Dedicated HVAC team
Get your new system priced
In Bluemont the heating half of the pair does most of the work.
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.
Bluemont houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
The Clarke County side
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.
- Median home built1981 Census
- Built before 1980about 5 in 10 Census
- Built since 2000about 2 in 10 Census
- Most homes aresingle-family houses, about 9 in 10 Census
- Heated withelectricity, about 5 in 10 Census
- Rentedabout 1 in 10 Census
- A few homes still burn heating oil. We don’t work on oil burners, but a switch to a heat pump or a gas or propane furnace is ours to price.
- Electric heat here usually means a heat pump with backup strips, which is priced as a heat pump system, not a furnace and AC.
What a new furnace and AC costs in Bluemont.
$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
- Furnace alone, keeping your AC$4,285 to $14,040
- Heat pump system instead$8,499 to $21,650
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.
When replacing both makes sense in Bluemont.
Two repair bills in one year, one on each machine
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.
Your heat may not be a furnace
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 outdoor unit runs on R-22
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.
Who signs off on a new system in Bluemont.
Loudoun County
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.
Clarke County
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.
How to pick who replaces your furnace and AC in Bluemont.
Ask every company that quotes the job, us included.
Will the quote lay out a heat pump, the pair and a lone furnace as separate options?
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.
Do they size it to the house, or copy the old label?
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.
Is the whole job in the written price?
Furnace, outdoor unit, matching coil, refrigerant lines, thermostat, permit and hauling the old one away. If it isn’t on the paper, ask.
Already holding another company’s quote?
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.
What our customers say.
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.
5.0 stars across 884 Google reviews. Read them on our reviews page.
Furnace and AC replacement questions from Bluemont.
On propane in Bluemont, is replacing just one of the two machines an option?
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.
Is a heat pump a good fit on the slope above Bluemont?
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.
How much does a new furnace and AC cost in Bluemont?
$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.
Do I have to replace both at the same time?
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.
Furnace and AC replacement in the towns next door.
- Furnace and AC replacement in Round Hill
- Furnace and AC replacement in Philomont
- Furnace and AC replacement in Purcellville
- Furnace and AC replacement in Upperville
- Furnace and AC replacement in Middleburg
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Start with your number, then a written quote.
Call, book online, 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 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 884 Google reviews. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
SwiftPro Heating, Cooling & Plumbing, 4230 Lafayette Center Dr, Suite N, Chantilly, VA 20151, (703) 997-9757. Book online, read our reviews, or see every town we serve.