Open 24/7 for emergencies
Heat pump replacement in Stafford runs $8,499 to $21,650 installed. In Aquia Harbour, about 97 percent of owner homes heat with electricity.
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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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 Stafford
Electric heat, which around here almost always means a heat pump, warms 13,649 of Stafford’s 24,011 owner homes, a bit over half. It runs highest where the gas main never went: in Aquia Harbour, down on Aquia Creek, the Census finds no owner on natural gas at all, and in 22556 it’s 5,005 of 7,791 owner homes on electricity, close to two in three.
Aquia Harbour’s typical owner home went up in 1984, and about two in three of them between 1980 and 1999. A heat pump works both seasons, and a house that age has probably been through two outdoor units already. If the one out back went in before 2010, it most likely holds R-22, and a leak on it is usually the end of the repair road.
How cold the outdoor air gets decides a heat pump’s winter, and Stafford sits between two NOAA stations. The Quantico Marine Corps Air Station, eight miles northeast on the Potomac, averages fewer than two nights a year down at 10 degrees and a January low of about 28. Fredericksburg’s, ten miles south-southwest, averages 3.4 such nights and a January low near 25. A properly sized heat pump carries most of that; stretches like the late January 2026 Arctic outbreak are what the backup strips are for.
Stafford County’s permit FAQ puts a heat pump swapped for one of the same type and size, where the old one sat, on its no-permit list. Move the outdoor unit, go up a size, or put a heat pump where a gas furnace stood, and you’re outside that exemption, so expect a permit from the County’s Building Division.
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 |
|---|---|---|---|---|
| Aquia Harbour | 1984 | single-family houses, nearly all | electricity, nearly all | Electric heat leads, which here means heat pumps: often a like-for-like swap. |
| Stafford Courthouse | 2005 | single-family houses, about 4 in 10 | gas, about 6 in 10 | Gas houses from the 2000s, where an aging air conditioner can give way to a heat pump. |
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.
ZIPs 22554 and 22556 as a whole: every Stafford address. The Census places in the table hold about one in seven of these homes.
When it’s time
NOAA’s storm records note six trees blown down in Aquia Harbour in a May 2019 thunderstorm, and numerous trees down across Stafford in July 2025. A limb that crushes the top of a heat pump or folds its coil can turn a repair into a replacement. Call us after a storm and we’ll check it before it runs.
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.
A heat pump sheds meltwater every time it defrosts, and NOAA’s storm records put up to 23.5 inches in the county in February 2010. Ask whether the new unit will stand on a riser tall enough to keep its coil above the snow and let that water 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.
Thank you very much for the great work. The HVAC installation, turned out perfectly. I will recommend SwiftPro service to people I know.
Where we work
Next door to Stafford: Fredericksburg, Quantico, Triangle, Dumfries and Midland.
Questions
A unit that old has worked every winter and summer for a quarter century, and if it’s on R-22, a refrigerant leak is where repairs stop paying. Start with the $99 diagnostic visit: the tech prices the repair and a replacement side by side, and you choose.
Yes, and it’s a natural pairing where the gas main doesn’t reach; 1,149 owner homes in 22556 burn propane. A heat pump takes the air conditioner’s place and heats on the milder days, and the propane furnace takes the coldest nights.
$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 Stafford 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.