Heat pump replacement in Fairfax Station.
Heat pump replacement in Fairfax Station runs $8,499 to $21,650 installed. About a third of owner homes here heat with electricity, most often a heat pump.
- The installed range, published
- Sized to the house, not the old label
- Dedicated HVAC team
Get your heat pump priced
Where Fairfax Station heats with electricity: the big lots, far more than the subdivisions.
Electricity heats about 1,860 owner homes in 22039, about a third, and around here that usually means a heat pump. They aren’t spread evenly. In South Run, where nearly every house dates from the 1980s and 90s, about 1 in 8 owners heat with electricity; in Crosspointe, about 1 in 5. In the two Census tracts that hold most of Fairfax Station’s septic lots it’s about 4 in 10, level with gas, and in the southern one, nearer the Occoquan, about half.
Where a house has no gas line, the like-for-like job is a new heat pump outside and a new air handler inside, with electric strips for the coldest hours, $8,499 to $21,650 installed. Propane is the other way out here: it heats more homes on the big lots than across the ZIP, and a heat pump teamed with a propane furnace runs on mild days and leaves the bitter ones to the flame.
In a big gas house the heat pump is often the upstairs half: a gas furnace for the main floors, a heat pump with its air handler in the attic for the bedrooms. That system can be replaced on its own. The air handler comes down through the hatch, its replacement goes up the same way with a new drain pan underneath, and a matched outdoor unit goes in beside the house.
Pair a heat pump with gas and one more thing matters: which electric company sends the bill. Fairfax County names Dominion for most residents and says parts of Clifton, next door, and Centreville may be on NOVEC. Our dual fuel guide works out, for each, the outdoor temperature where the furnace should take over, and that setting goes into the thermostat.
How the houses across Fairfax Station are heated.
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 |
|---|---|---|---|---|
| Fairfax Station | 1982 | single-family houses, about 9 in 10 | gas, about 5 in 10 | 1980s and 90s gas houses, most on a second air conditioner, the part a heat pump would replace. |
| South Run | 1988 | single-family houses, nearly all | gas, about 9 in 10 | 1980s and 90s gas houses, most on a second air conditioner, the part a heat pump would replace. |
| Crosspointe | 1993 | single-family houses, nearly all | gas, about 8 in 10 | 1980s and 90s gas houses, most on a second air conditioner, the part a heat pump would replace. |
Fairfax Station houses, 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.
Fairfax Station
ZIP 22039 as a whole: every Fairfax Station address. The Fairfax Station Census place in the table also takes in streets with Fairfax mail.
- Median home built1988 Census
- Built before 1980about 1 in 10 Census
- Built since 2000about 1 in 10 Census
- Most homes aresingle-family houses, nearly all Census
- Heated withgas, about 6 in 10 Census
- Rentedhardly any Census
- Bigger single-family houses often have a second system upstairs, priced on its own.
What heat pump replacement costs in Fairfax Station.
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
- A gas furnace and air conditioner together, installed$8,898 to $23,000
- Diagnostic visit, when a repair may do$99
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.
When a heat pump in Fairfax Station is worth replacing.
Sized before the basement was finished
A heat pump picked for the house as built now heats a finished lower level too, and on cold nights it leans on the electric strips. The replacement gets sized for every room that’s finished now.
The AC quit, and you heat with gas
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’s past 15 years old
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.
The paperwork behind a new heat pump in Fairfax Station.
How to pick the best heat pump installer in Fairfax Station.
Questions to ask anybody who quotes you, us included.
Did they ask about your generator?
If a standby generator backs up the house, ask the installer to check it can carry the new heat pump, and whether the electric strips should be locked out while it runs. The strips draw far more power than the heat pump itself.
Did they size it, or copy the old label?
Copying the old nameplate repeats whatever guess was made when the house was built. The wrong size runs worse in both seasons.
Is the air handler in the price?
A heat pump system is the outdoor unit plus the air handler inside. Ask whether the quote covers both, matched, in writing.
Who sets up the backup heat?
Set wrong, the electric strips run on mild days. Ask who programs the thermostat and at what outdoor temperature the strips may come on.
What our customers say.
Excellent price and service. Had our AC/heating system replaced. Gave us a great price and top quality install. Can’t say enough good things about them.
5.0 stars across 884 Google reviews. Read them on our reviews page.
Heat pump replacement questions from Fairfax Station.
There’s no gas line to our Fairfax Station house. Heat pump or propane furnace?
Either can work. A heat pump system runs $8,499 to $21,650 installed and heats and cools with one outdoor unit, strips behind it for the coldest hours. A propane furnace with an air conditioner keeps a flame for those hours, and a heat pump teamed with propane splits the work. On the estimator quiz, Electric Heating prices a heat pump system.
Is a 1990s heat pump worth a compressor repair?
Usually not. A heat pump from the 1990s has run every winter and summer for close to thirty years, and it most likely holds R-22, which is no longer made. A $99 diagnostic visit gets the repair price in writing; set that against $8,499 to $21,650 for a new system before deciding.
How much does heat pump replacement cost in Fairfax Station?
$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.
Should I get a heat pump, or a furnace and air conditioner?
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.
Heat pump replacement in the towns next door.
- Heat pump replacement in Burke
- Heat pump replacement in Clifton
- Heat pump replacement in Springfield
- Heat pump replacement in Fairfax
- Heat pump replacement in Annandale
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See the range first, then your number.
Call, or book online and pick a window. 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 is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Fairfax Station and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 884 Google reviews. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
SwiftPro Heating, Cooling & Plumbing, 4230 Lafayette Center Dr, Suite N, Chantilly, VA 20151, (703) 997-9757. Book online, read our reviews, or see every town we serve.