Open 24/7 for emergencies
Heat pump replacement in Haymarket runs $8,499 to $21,650 installed. Inside the town, close to four owner homes in ten 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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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 Haymarket
The Census counts a heat pump as electric heat, and across 20169 that share splits three ways. Inside the town limits, 170 of the 472 owner homes heat with electricity, and in a town where most houses date from the 1980s and 90s, that usually means a heat pump with backup strips. Across the whole ZIP it’s about one owner home in four, and in Bull Run Mountain Estates close to four in ten again.
The Town lists two electric companies, Dominion and NOVEC, and the one on your bill matters. Dominion’s Home Energy Evaluation program, for its own customers, lists a heat pump or mini split upgrade among its measures; it starts with an evaluation by one of its participating contractors, who files the rebate afterward. Our dual fuel guide notes that NOVEC doesn’t offer a heat pump rebate.
In a gas house, about six in ten owner homes in town, a new heat pump usually means dual fuel. In town that gas is Columbia Gas, and our dual fuel guide puts the handoff to the furnace for Columbia Gas customers at about 33 degrees on Dominion and about 9 on NOVEC. The guide’s Washington Gas dual fuel rebate isn’t open to a Columbia Gas account, and Columbia Gas’s own rebate list has no heat pump on it.
Up on the mountain about one owner home in eight burns propane, and a heat pump paired with a propane furnace carries the spring and fall and leaves the tank for January. Like for like, a heat pump going back in the old one’s spot needs no Prince William County permit; a unit in a new spot or one needing a new circuit does.
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 |
|---|---|---|---|---|
| Bull Run Mountain Estates | 1978 | single-family houses, nearly all | electricity, about 4 in 10 | Little natural gas: heat pumps and propane furnaces. |
| Haymarket | 1995 | single-family houses, about 6 in 10 | gas, about 6 in 10 | 1980s and 90s gas houses, most on a second air conditioner, the part a heat pump would replace. |
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.
Inside the town limits only, about one in eighteen of the owner homes with Haymarket mail. Dominion Valley, Piedmont and Bull Run Mountain Estates sit outside it, in the county.
ZIP 20169 as a whole: every Haymarket address, the Town’s homes included.
When it’s time
In Bull Run Mountain Estates close to four owner homes in ten heat with electricity, in houses mostly from the 1970s. If yours is a heat pump from a previous owner, the label’s year tells you how long it’s run. If it’s baseboard heaters instead, the real question is ductless.
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
The Town’s design guidelines ask that outdoor meters and mechanical, heating and air conditioning units be screened from public view by walls, fences, planting or a mix, and that roof-mounted equipment be screened on all sides. Source.
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.
Inside the town limits it can be Dominion or NOVEC. Dominion’s program runs through its participating contractors, and in a dual fuel setup the handoff temperature sits far apart on the two.
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 Haymarket: Gainesville, Catharpin, Broad Run, The Plains and Aldie.
Questions
Only for a Washington Gas customer. Inside the Town of Haymarket the gas company is Columbia Gas, so that rebate is off the table there. On the county side, some of Prince William County is Columbia Gas territory too, so check the name on your gas bill before counting on it.
It can, but the Town wants outdoor heating and AC units screened from public view, and a new spot the street can see is a change for its Architectural Review Board. A move also turns a no-permit swap into County permit work. The old pad is the simplest place.
$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 Haymarket 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.