Open 24/7 for emergencies
Heat pump replacement in Dumfries runs $8,499 to $21,650 installed. About half the owners in the Town and Montclair heat with electricity, mostly by heat pump.
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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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 Dumfries
The Census files a heat pump under electric heat, and by that count two of the three big pieces of Dumfries lean electric. Inside the Town, 696 of the 1,375 owner homes heat with electricity; in Montclair, 3,367 of 6,439. Cherry Hill is the gas corner, about one owner in four on electric heat.
In those electric houses, replacement usually means heat pump for heat pump: a new outdoor unit and a new air handler with backup strips, matched to each other. A new outdoor unit tied to an old indoor coil is a mismatch, so the written quote should name both halves.
Cherry Hill’s gas houses are a different job. Most went up from the 1990s on, with an air conditioner outside and a gas furnace inside. When that air conditioner fails, a heat pump in its place can carry the heating through fall and spring and hand the hard freezes to the furnace, and with Washington Gas on the bill and a qualifying furnace, that pairing can earn Washington Gas’s dual fuel rebate. Our dual fuel guide lists what it pays and what the furnace has to meet.
Parts of the Town sit low; its comprehensive plan has the ground rising from sea level at the tidal flats to over 170 feet. If water has stood around your outdoor unit, ask the Town’s floodplain manager in Public Works whether the parcel is in FEMA’s special flood hazard area, where Virginia’s code lets the building official require a permit even for replacement work it otherwise exempts. A taller stand for the new unit is worth pricing in.
Neighborhood by neighborhood
Census figures for the owner-occupied homes in each place, and what that usually means for a heat pump.
| Place | Median home built | Most homes are | Heated with | What a heat pump job usually looks like |
|---|---|---|---|---|
| Montclair | 1989 | single-family houses, about 8 in 10 | electricity, about 5 in 10 | Electric heat leads, which here means heat pumps: often a like-for-like swap. |
| Cherry Hill | 2005 | townhouses, about 4 in 10 | gas, about 7 in 10 | Gas houses from the 2000s, where an aging air conditioner can give way to a heat pump. |
| Dumfries | 1985 | townhouses, about 4 in 10 | electricity, about 5 in 10 | Electric heat leads, which here means heat pumps: often a like-for-like swap. |
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.
Nearly all of the Town sits in 22026, with a sliver in Triangle’s 22172. None of it is in 22025.
Montclair in 22025, where the Postal Service accepts Montclair as the town name; Southbridge and Cherry Hill in 22026, outside the town line.
ZIPs 22025 and 22026 as a whole: Montclair, Cherry Hill and the rest of Dumfries mail, the Town’s homes included.
When it’s time
Two in three rented Town homes heat with electricity, and the Town inspects rentals in its rental districts against a property maintenance code that covers heating. A heat pump living on its backup strips is better replaced between tenants than found at inspection.
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 can go where the air conditioner sat, heat on mild days and leave the cold nights to the furnace. That’s dual fuel.
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.
In a Williamstown or South Cove row, a middle unit shares two walls with heated neighbors and an end unit one. Same floor plan, different heat loss. Ask whether the size came from your unit’s own numbers, not the old label or the house next door.
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.
Excellent work by Tyler and Team. Right from pricing to performing professional installation of new Heat Pump.
Where we work
Next door to Dumfries: Triangle, Quantico, Woodbridge, Lorton and Stafford.
Questions
No. Washington Gas pays only when a heat pump replaces a central air conditioner in a house keeping its gas furnace, and says a heat pump replacing a heat pump isn’t eligible. An all-electric Town or Montclair swap has no gas company rebate under it; the HVAC estimator prices it straight.
It changes the path in, not the equipment: the new air handler goes up through the attic opening and sits over a drain pan, since a clogged condensate line up there drips onto the ceiling below.
$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 Dumfries 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.