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Heat pump replacement in Great Falls runs $8,499 to $21,650 installed per system. About four in ten owner homes here 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 Great Falls
Electricity heats about 39 in 100 owner homes in Great Falls, by the Census count, a little more than the 35 in 100 across Fairfax County. Out here that usually means heat pumps, and in houses this size, often more than one: an outdoor unit for the lower floors and another for the bedrooms, each with its own air handler and its own bank of electric heat strips as backup. Replacing one doesn’t commit you to the other.
A heat pump runs winter and summer, so it wears out sooner than an air conditioner that only cools, and fifteen years or so is a fair run. Half the houses in 22066 went up in the 1970s and 80s, which puts the all-electric ones on their second outdoor unit at least, and many on their third. A worn one gives itself away on the coldest mornings: the house stays warm, but the thermostat shows aux heat on more and more.
In the other half of town the furnace burns natural gas or propane, and a heat pump can still earn its place. Set where the air conditioner sits, it cools all summer, heats through the mild part of winter, and hands off to the furnace when it gets properly cold. That’s dual fuel, and in a propane house it means the furnace, and the tank, only carry the coldest stretches. Our dual fuel guide explains how the handoff works and where it gets set.
Backup heat matters more in a big all-electric house. Each air handler carries strips rated in kilowatts, and with two systems in a 4,000 square foot house, they can lean hard on the electrical panel on a cold morning. A replacement is the time to check that the breaker and the wire feeding each air handler match the strips going in.
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
A heat pump frosts over on cold, damp days and melts it off in defrost now and then; that’s normal. A coil that stays caked in ice is not. Under big trees, leaves packed into the base keep the meltwater from draining. The $99 diagnostic visit finds out whether it’s a defrost part or the end of the unit.
It heats all winter and cools all summer, so it piles up hours an air conditioner never sees. Past 15 years, price the replacement beside any big repair.
Most heat pumps installed before 2010 hold R-22, which hasn’t been made since 2020. A leak on one is usually where recharging stops making sense.
Permits, locally
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 two-system house the heat pumps are rarely the same age. Ask for a separate line for each, with its own size, so you can replace the one that’s finished and plan for the other.
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.
Oscar and Ndung were great technicians for our HVAC install! Very knowledgeable and friendly. Would recommend them to others!
Questions
Yes. The heat pump takes the air conditioner’s place outside, a matching coil sits on the furnace, and the thermostat decides which of the two heats. We price that pairing at the visit, side by side with a full heat pump system and air handler, $8,499 to $21,650 installed.
$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 Great Falls 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.