Open 24/7 for emergencies
AC replacement for Fredericksburg’s 22405 and 22406 costs $5,942 to $14,450 installed, with your gas or propane furnace kept.
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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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 Fredericksburg
Fredericksburg mail on this side of the Rappahannock is Stafford County, not the City, and its houses split by fuel. Gas heats about four in ten owner homes across 22405 and 22406, propane another 7 percent, and those furnaces have a separate condenser outside, the setup this page replaces. About half of 22405’s owner homes heat with electricity instead, usually by heat pump, a different job.
Stafford’s permit FAQ exempts an air conditioner swapped for one of the same type and size in the same spot. Size counts: an AC sized to today’s house can differ from the old one, and then the exemption no longer fits. The Building Division at 1300 Courthouse Road takes the appliance permit on its Residential Change form, signed by the contractor, or by the owner with a notarized affidavit. An HOA’s sign-off doesn’t stand in for it.
22406 is the young ZIP, its typical owner home from 2004, and plenty of builder condensers out Warrenton Road are close to twenty and most likely on R-22, a refrigerant that hasn’t been manufactured since 2020. 22405 runs older, a 1993 median, so many houses there are on a second air conditioner. In Falmouth, typical owner home from 1983, central air was often added to a house laid out around its furnace, so the ducts get measured before a size is picked.
The Fredericksburg weather station by the river logs about 41 days a year at 90 or hotter. Wind is the other threat: the June 2012 derecho measured a 70 mph gust at Route 17 and Poplar Road, and the August 2024 tornado near Glendie snapped trees through subdivisions. On the Falmouth side, Claiborne Run flooded Harrell Road on 14 separate days from 2010 to 2021, so a condenser on low ground there belongs up on a stand.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
ZIPs 22405 and 22406 as a whole: Fredericksburg mail on the Stafford County side, not the City of Fredericksburg.
When it’s time
A unit from 22406’s 2000s building that needs refrigerant has a leak, and on R-22 every refill is reclaimed stock. In a gas or propane house, that’s the point to replace the outdoor unit and its coil and keep the furnace, once the $99 diagnostic rules out a cheap fix.
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.
A house from the 2000s often cools with the condenser it was built with. Past fifteen years, compressors and fan motors start to go, one after another.
Choosing who installs it
Questions to ask anybody who quotes you, us included.
Stafford’s exemption covers the same type and size in the same spot. If the load calculation says your house needs a different size than the old unit, a good quote says so and says what the county paperwork then involves, instead of quietly matching the old size to skip it.
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.
They replaced my AC system and got it up and running with great service. Moises and Efrain are great!
Questions
Not necessarily. Stafford County permits condominiums and other multi-family buildings under its commercial rules rather than the house rules, and about 1,670 homes in 22406 sit in buildings of five units or more. Start with the association, which may control where the condenser sits.
Yes. About one owner in nine in 22406 burns propane, and a propane furnace takes a new coil and condenser the same way a gas one does; the furnace itself isn’t touched. A heat pump in the AC’s spot, with the propane furnace as its backup, is worth pricing beside it at $8,499 to $21,650.
$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 Fredericksburg 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.