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Springfield’s gas-heated houses, Kings Park to West Springfield, get a new central AC for $5,942 to $14,450 installed. Most predate 1980.
Price range
$5,942-$14,450
8yrs @ 7.99%
$84/mo
15yrs @ 9.99%
$64/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 1,131 reviews
One of our HVAC technicians moving a new condenser up a driveway, the van behind him.
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 our estimator runs on, for a central air conditioner on its own, keeping the furnace you have. A single-stage unit on a small house sits near the bottom; a variable-speed one on a big house, near the top.
A central air conditioner alone, keeping your furnace, installed
$5,942 to $14,450
or $99/mo at 0% APR for 60 months
An air conditioner and furnace together, installed
$8,898 to $23,000
or $148/mo at 0% APR for 60 months
A heat pump in the AC’s place, installed
$8,499 to $21,650
or $142/mo at 0% APR for 60 months
Diagnostic visit, if it may be worth fixing
$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
The HVAC replacement cost estimator narrows it to your house. Then a tech measures, and you get the installed price in writing before anything is ordered.
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 Springfield
Springfield’s typical owner home went up in 1968, and North Springfield’s typical one in 1957, before central air was standard. Plenty of these houses got their cooling years after they were built: a condenser out back, a coil set on top of the basement furnace, and copper lines threaded along the basement ceiling and out through the foundation. That first add-on unit is long gone, and the one out there now is often the second or third. What hasn’t changed is the ductwork, drawn to carry heat, often with registers low in the floor.
In Kings Park, North Springfield and Ravensworth the great majority of owners heat with gas, so a worn out condenser there is an AC-only job: the furnace stays, and the outdoor unit and the coil on top of the furnace change. That’s the pattern for most of town, where gas heats 58.1 percent of owner homes. A unit set before 2010 most likely runs on R-22, and since its production ended in 2020, a leak on one gets refilled from whatever recovered stock is left. Put that recharge quote beside the price of a new AC before you choose.
The copper is the part to ask about. In a house that got central air late, the line set may cross a basement ceiling that’s since been finished. A new AC can reuse it if it’s the right size and sound, or it may need new copper, and running that above finished drywall is real work, so ask which the quote assumes. Sizing matters as much. Many of these houses have new windows, more attic insulation or a finished basement since the last unit went in, so the new one gets sized from the house as it is now, not bumped up a size from the old label.
West Springfield, mostly 1960s and 70s, puts close to four in ten of its homes in townhouses, with condensers standing in a row behind the units, so the new one has to fit the old one’s slot. Around Newington the outdoor unit is more often a heat pump: 57 percent of Newington owners heat with electricity, and Newington Forest leans further that way, which makes it a heat pump replacement at $8,499 to $21,650. In Springfield proper about a third of homes are rented, so the owner approves the swap. Fairfax County files it as mechanical work, plus the A2L certification.
Neighborhood by neighborhood
Census figures for the owner-occupied homes in each place, and what that usually means for the AC that’s there now.
| Place | Median home built | Most homes are | Heated with | The AC there now |
|---|---|---|---|---|
| Springfield | 1968 | single-family houses, about 6 in 10 | gas, about 6 in 10 | Gas furnaces with central air, often on the second or third AC. |
| West Springfield | 1972 | single-family houses, about 5 in 10 | gas, about 7 in 10 | Gas furnaces with central air, often on the second or third AC. |
| Newington | 1981 | townhouses, about 6 in 10 | electricity, about 6 in 10 | Mostly electric heat, so the cooling is usually a heat pump. |
| Newington Forest | 1984 | townhouses, about 5 in 10 | electricity, about 7 in 10 | Mostly electric heat, so the cooling is usually a heat pump. |
| North Springfield | 1957 | single-family houses, about 9 in 10 | gas, about 9 in 10 | Gas furnaces with central air, often on the second or third AC. |
| Kings Park | 1966 | single-family houses, about 8 in 10 | gas, about 9 in 10 | Gas furnaces with central air, often on the second or third AC. |
| Ravensworth | 1964 | single-family houses, nearly all | gas, nearly all | Gas furnaces with central air, often on the second or third AC. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
When it’s time
In a Kings Park or North Springfield house that label usually belongs to the second or third air conditioner, set during the 2000s. It may still cool. But the coil on the furnace, the copper and the compressor are all that age, and any repair past a capacitor now runs into a refrigerant that’s no longer produced. That’s the moment to price the new AC, before a July failure prices it for you.
An air conditioner put in before 2010 most likely holds R-22, which hasn’t been made since 2020. A leak on one of those usually ends the repair road.
The new coil sits on the furnace and uses its blower. When the furnace is the same age, replacing both usually costs less than two jobs a few years apart: $8,898 to $23,000 for the pair.
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 Springfield basement finished after the AC went in, the line set runs above drywall. Ask the installer whether the new AC reuses it, flushes it or replaces it, and if it’s replaced, where the new copper runs and who patches the ceiling. A quote that skips the question tends to find its answer on install day.
Ask how they picked the size. Copying the old nameplate repeats whatever was guessed when the house was built.
The outdoor unit and the coil on the furnace are rated as a pair. Ask whether the quote replaces both, and what happens to the line set.
A good company puts the repair price next to the replacement range and lets you choose. Already holding somebody’s big number? Take the free second opinion first.
Two of our crew going over a work order before the day's calls.
From our Google reviews
5.0 stars across 1,131 reviews. Read them on our reviews page.
On spec and on price for our A/C replacement. Showed up on time and all went as promised
Where we work
Next door to Springfield: Burke, Annandale, Fairfax Station, Lorton and Alexandria.
Questions
Usually not. In a 1960s Springfield house the ducts were drawn to carry heat, and a bigger condenser pushing through them mostly runs louder and in shorter bursts without reaching the far bedroom any better. Size it from a load calculation of the house as it stands. If one room still lags, a ductless head there fixes what a bigger AC can’t.
It depends on the building. Fairfax County counts some residential buildings, condos among them, as commercial under the building code, so a condo’s new AC can go through the commercial side while a townhouse or single-family house takes the residential mechanical permit. The A2L certification comes along either way. Bring the condo documents too, since the association may control where the outdoor unit sits.
$5,942 to $14,450 installed for a central air conditioner on its own, keeping the furnace you have; size and efficiency set where yours lands. An AC and furnace together run $8,898 to $23,000. The HVAC replacement cost estimator gives your house its own number.
It’s worth pricing. A heat pump cools exactly like an AC and also heats on mild days, so with your gas furnace it becomes dual fuel. A heat pump system runs $8,499 to $21,650 installed, and we’ll price it both ways.
Ready when you are
Call, or send the form at the top. A tech measures the house and puts the installed price in writing before anything is ordered, and if the old AC is worth fixing, 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 Springfield and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,131 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.