Open 24/7 for emergencies
Heat pump replacement in Gainesville runs $8,499 to $21,650 installed. About one owner home in six here heats with electricity, usually with a 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 Gainesville
By the Census Bureau’s count, 1,864 of the 10,869 owner homes in the 20155 ZIP heat with electricity, about one in six, and inside the part the Census calls Gainesville the share comes out the same. In a house built since 2000, electric heat nearly always means a heat pump outside and an air handler with backup strips inside. Next door in the Town of Haymarket, where the typical owner home dates from 1995, the share is more than a third.
That one in six undercounts the heat pumps. The Census records a single heating fuel per house, the one used most, so a two-story gas house with a heat pump serving the bedrooms counts as gas. Builders in the 2000s often set houses up that way: a gas furnace for the main floor and basement, and a heat pump with its air handler in the attic for the floor above. Two thermostats and two outdoor units? Read the label on each unit before assuming both systems burn gas.
Prince William County keeps the like-for-like swap out of its permit office: a heat pump replaced by the same type of unit in the same location is on its no-permit list. That list is written for houses, though. The county treats condominium buildings as commercial projects, so in Heritage Hunt’s condominiums, with buildings on Chelmsford Drive and on Heritage Hunt Drive, the residential exemption doesn’t reach, and the condominium association usually has its own say about equipment on the building.
For the gas houses, about eight in ten, a heat pump comes up when the air conditioner fails. In a 2000s house that outdoor unit often holds R-22, and the replacement on the same pad can be a heat pump that heats on mild days and leaves the cold nights to the gas furnace. An air conditioner and a heat pump aren’t the same type of unit, so check how the county sees that swap before counting on the no-permit line.
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
That setting means the bedroom system is a heat pump, even when the furnace downstairs burns gas. In a 2000s Gainesville house it’s likely the builder’s original, past twenty years of heating every winter and cooling every summer. Once it starts needing repairs, have the replacement priced beside the next 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.
Choosing who installs it
Questions to ask anybody who quotes you, us included.
In a two-system Gainesville house, the quote should name the unit it replaces by its label, not by which floor it serves. From the yard, a heat pump and an air conditioner look almost the same.
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 Gainesville: Catharpin, Haymarket, Broad Run, Bristow and The Plains.
Questions
Prince William County’s no-permit line for a like-for-like heat pump applies to residential projects, and the county counts condominium buildings as commercial. So start with the condominium association, and expect the county’s commercial rules rather than the house rules.
$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 Gainesville 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.