Open 24/7 for emergencies
A new heat pump and air handler in Woodbridge runs $8,499 to $21,650 installed. Two Potomac Mills owners in three heat with electricity; in Lake Ridge, half.
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 Woodbridge
Electric heat in the Census mostly means heat pumps here, and Woodbridge splits sharply on it. In Potomac Mills, 881 of 1,304 owner homes heat with electricity. In Lake Ridge it’s 6,137 of 12,238, almost exactly half. Dale City, the biggest place with Woodbridge mail, is the gas side, about three owners in ten on electric heat. Renters lean further: two rented homes in three in the Census place called Woodbridge heat with electricity.
In Lake Ridge most electric houses went up in the 1980s, more than four in ten of them townhouses, so the heat pump out back is rarely the first, and the air handler lives in a closet or the attic. A like-for-like swap there comes down to sizing and to the path in: the new air handler has to fit through the same doorway or attic opening the old one used, and the new outdoor unit onto the old pad.
Dale City is where a heat pump usually replaces an air conditioner. Two owners in three there heat with gas, so the unit outside cools through the furnace’s blower. Put a heat pump in its place and the furnace stays for the hardest freezes. That swap falls outside the county’s no-permit line, which covers only the same type of unit in the same spot.
Sizing matters more than for an air conditioner, since a heat pump carries the house in January too. Prince William’s design temperature, the cold a heating system gets sized against, is 16 degrees. A unit picked by copying the old cooling size can run short on a cold night and hand more of it to the backup strips.
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 |
|---|---|---|---|---|
| Dale City | 1983 | single-family houses, about 7 in 10 | gas, about 7 in 10 | 1980s and 90s gas houses, most on a second air conditioner, the part a heat pump would replace. |
| Lake Ridge | 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. |
| Woodbridge | 1976 | single-family houses, about 4 in 10 | gas, about 5 in 10 | Older gas houses, where a heat pump pairs with the furnace once the ducts are checked. |
| Leesylvania | 2006 | 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. |
| Potomac Mills | 1988 | single-family houses, about 6 in 10 | electricity, about 7 in 10 | Electric heat leads, which here means heat pumps: often a like-for-like swap. |
| County Center | 2006 | townhouses, 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.
When it’s time
On a Lake Ridge or Potomac Mills heat pump past its fifteenth year, strips that come on in mild weather, or a house that can’t hold its setting on a freezing morning, mean the outdoor unit is losing ground. A $99 diagnostic visit says whether that’s a fixable fault or the end of the unit.
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.
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.
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.
Ask what outdoor temperature they sized the heating for; here the answer should be 16 degrees. One that only mentions the old unit’s tonnage means nobody did the winter math.
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!
Where we work
Next door to Woodbridge: Dumfries, Lorton, Triangle, Fairfax Station and Quantico.
Questions
It can, if Washington Gas sends your gas bill and the heat pump takes a central air conditioner’s place beside a gas furnace that meets its efficiency floor. A heat pump replacing a heat pump gets nothing from that rebate, which leaves the all-electric houses of Lake Ridge and Potomac Mills out. Our dual fuel guide has the amounts.
Get both prices before the next lease starts. A $99 diagnostic visit puts the repair on paper, and if the unit is past fifteen years or on R-22, the replacement range goes beside it so the owner decides once. The HVAC estimator narrows that range first.
$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 Woodbridge 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.