Open 24/7 for emergencies
Heat pump replacement in Triangle runs $8,499 to $21,650 installed. The Quantico weather station averages under two nights a year at 10 degrees or colder.
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
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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 Triangle
A heat pump pulls its heat from the outdoor air, so what matters is how cold that air gets. NOAA’s 1991 to 2020 normals for the Quantico Marine Corps Air Station, 3.8 miles away at the Potomac’s edge, count 1.8 nights a year at 10 degrees or below, where Dulles Airport counts 4.9. Most of a Triangle winter sits where a properly sized heat pump carries the house without leaning on its backup strips. Wind chill doesn’t count: the outdoor unit only feels the air temperature.
The Census counts 466 of Triangle’s 2,089 owner homes heating with electricity, a bit over one in five, and here that usually means a heat pump. Rentals lean further: 529 of the 1,223 rented homes. If you own one, replace a heat pump that’s living on its strips between leases. On the base itself, family housing belongs to Liberty Military Housing, so on-post residents call their housing office.
Another 1,574 owner homes burn gas, where a heat pump usually takes the air conditioner’s place and the furnace keeps the coldest nights. Washington Gas pays toward that setup only for its own customers, and Columbia Gas of Virginia also serves part of Prince William County, so look at your gas bill; our dual fuel guide has the amounts. The County’s no-permit list covers a heat pump swapped like for like in the same spot; one replacing an air conditioner isn’t, so expect a permit.
Low ground needs a closer look. The National Weather Service’s Little Creek gauge at Route 1 has flooding starting along Fuller Heights Road near Fuller Road at 7 feet, and in June 2018 floodwater submerged a car at Route 1 and Fuller Road. If floodwater reaches your outdoor unit, don’t switch it back on: call us once the water’s down and we’ll check the electrical parts and the compressor before it runs. On low ground, the new unit can sit on a taller stand.
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.
When it’s time
If the thermostat showed aux heat for days during the January 2026 Arctic stretch and the house still ran cool, the heat pump has lost capacity. A $99 diagnostic separates a low charge from a worn compressor before anyone prices a new one.
A heat pump can go where the air conditioner sat, heat on mild days and leave the cold nights to the furnace. That’s dual fuel.
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.
Permits, locally
Prince William County lists any work that alters a home’s heating and air conditioning as permit work, but swapping an electric furnace, heat pump or air conditioning condensing unit for the same type of unit in the same spot is an ordinary repair that needs no permit. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who installs it
Questions to ask anybody who quotes you, us included.
A heat pump melts frost off its outdoor coil and sheds that water under the unit. The Quantico station averages about 76 nights a year at freezing or below, so a unit beside steps or a patio can leave ice where people walk. Ask where the new one will drain.
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.
Moises and Oscar did a superlative job doing a custom installation of a new HVAC unit in a tight basement space. And they then took the time to go over system operation. Top tier job and service in all respects!
Where we work
Next door to Triangle: Quantico, Dumfries, Woodbridge, Stafford and Lorton.
Questions
Often, if the ducts can carry it. Heat pump air leaves the registers cooler than a gas furnace’s, so it takes more of it, and ducts from the Carborough Heights or Amidon years were sized for a furnace’s hotter air. We measure the duct runs before quoting; if they come up short, keeping the gas furnace as backup is usually the easier answer.
$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 Triangle 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.