Open 24/7 for emergencies
Heat pump replacement in Philomont runs $8,499 to $21,650 installed. Electricity heats about 42 percent of owner homes in its ZIP area.
Price range
$8,499-$21,650
8yrs @ 7.99%
$120/mo
15yrs @ 9.99%
$91/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
Send this and the office calls or texts you back to set a time.
We’ll call or text this number about your request. By sending it you agree to our terms and privacy policy.
Rather talk now? (703) 997-9757
5.0 stars across 1,132 reviews
One of our HVAC technicians with an electric heat strip kit, the backup heat inside a heat pump’s air handler.
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
The same price book as our heating page and the HVAC estimator, for a heat pump and air handler, 2 to 5 ton.
A heat pump system, outdoor unit and air handler, installed
$8,499 to $21,650
or $142/mo at 0% APR for 60 months
A gas furnace and air conditioner together, installed
$8,898 to $23,000
or $148/mo at 0% APR for 60 months
Diagnostic visit, when a repair may do
$99
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
Might it be a repair? The diagnostic visit is $99, and the tech prices the repair and the replacement side by side. Financing is available, subject to approval.
With Comfort+ membership at $199 a year, the diagnostic visit is included, and half of each repair bill is banked toward replacing that system, up to $1,500.
What’s different in Philomont
The Census counts a heat pump as electric heat, and in ZIP 20132, the Purcellville-area ZIP that Philomont’s figures come from, electricity heats about 42 percent of owner homes. Another 42 percent burn propane. About 48 percent of homes there went up since 2000, and in a house that new, electric heat often means a heat pump with an air handler and backup strips. Take the HVAC estimator quiz and pick electric heat, and it prices a heat pump system for your house.
Winter is the test here. The Purcellville station counts 4,942 heating degree days against 1,050 for cooling, a January low averaging 24.5F and 114.7 days a year with lows at or below 32F. Philomont’s low hit -2F on January 23, 2025, and the coldest nights of the January 2026 arctic outbreak fell under Extreme Cold Warnings. On nights like those the backup heat does real work, so its size belongs on the quote.
Propane houses take a different route. A heat pump there can go on the pad where the air conditioner stood and work alongside the propane furnace. Set that beside a furnace and air conditioner done together, $8,898 to $23,000. The median owner home in the ZIP area dates to 2000, so a pair from that year is old enough that a heat pump is worth pricing.
Ground-source heating is something Loudoun County permits, through geothermal wells, and it is not the project priced here, which is an outdoor unit with an air handler inside. A house heating with oil today, about 6 percent of owner homes in the ZIP area, can ask us to price a heat pump in its place; the burner itself is not our work. Either way it runs on electricity, so storm outages count.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise. A heat pump counts as electric heat.
Philomont’s own ZIP, 20131, is post office boxes only, so the Census Bureau maps no area for it. These are ZIP 20132 as a whole, the Purcellville ZIP area Philomont sits in, the Town of Purcellville included.
When it’s time
Heat pump air is warmer than the room but cooler than a furnace’s, so some of that feeling is normal. Air that feels cool on a January night near 24.5F is not. It points to a defrost fault, a refrigerant problem or a failing part, and the diagnostic visit at $99 finds which.
When the heat pump can’t keep up, the electric strips take over, and they cost far more to run. Aux heat on for hours is the sign.
A heat pump from a 2000s house that’s still original has run every summer and winter since. Once repairs start, price the replacement before the next one.
Choosing who installs it
Questions to ask anybody who quotes you, us included.
The Purcellville station counts 4,942 heating degree days against 1,050 for cooling, so the winter load is the bigger one. Ask how the installer chose the size, what backup heat comes with it, and whether the quote names both before you sign.
Copying the old nameplate repeats whatever guess was made when the house was built. The wrong size runs worse in both seasons.
A heat pump system is the outdoor unit plus the air handler inside. Ask whether the quote covers both, matched, in writing.
Set wrong, the electric strips run on mild days. Ask who programs the thermostat and at what outdoor temperature the strips may come on.
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.
Hard working crew that removed old system and installed new system in a professional manner.
Where we work
Next door to Philomont: Middleburg, Round Hill, Bluemont, Purcellville and Hamilton.
Questions
Yes, the county permits geothermal wells used for ground-source heating and cooling, apart from drinking-water wells. The heat pump priced on this page is an outdoor unit with an air handler inside, $8,499 to $21,650 installed. A ground-source system is a separate project.
Worth a price, yes. The outdoor unit goes where the air conditioner sits and the propane furnace stays for the coldest weather. The heat pump system is $8,499 to $21,650 installed, against $8,898 to $23,000 for a furnace and air conditioner together, and the estimator narrows both to your house.
$8,499 to $21,650 installed for a heat pump system, the outdoor unit and the air handler, 2 to 5 ton. A small single-stage system lands near the bottom, a big variable-speed one near the top. The HVAC estimator narrows it to your house.
A heat pump system runs $8,499 to $21,650 installed; a gas furnace and air conditioner together, $8,898 to $23,000. No gas line usually means a heat pump. With gas, you can keep the furnace and add one; our heat pump vs gas furnace guide runs the numbers.
Ready when you are
Call, or send the form at the top. The price is in writing before the old unit comes out, and if a repair makes more sense, 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 Philomont 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.