Open 24/7 for emergencies
A new furnace and AC in Alexandria runs $8,898 to $23,000 installed. Most Alexandria addresses we work at are in Fairfax County, not the City. Call SwiftPro, rated 5.0 stars across 1,137 reviews, at (703) 997-9757, 24 hours a day, 7 days a week.
Price range
$8,898-$23,000
8yrs @ 7.99%
$126/mo
15yrs @ 9.99%
$96/mo
Monthly figures on the starting price, the whole price financed, on approved credit. The lender sets the final terms. How financing works
Tell us what it’s doing and we’ll call you back with a number.
When the AC quits, AC repair in Alexandria lists what each repair costs. For the ducts, air duct cleaning in Alexandria has its own page.
5.0 stars across 1,137 reviews
Part of our plumbing team, with the drain machine, the sewer camera and the jetter they bring to the house.
Get your price in writing
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Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceWe answer day or night, and we will tell you honestly when we can get there.
Dedicated HVAC and plumbing teamsA dedicated HVAC team and a dedicated plumbing team, under one roof
Prices in writing, firstYou get the number in writing before any work starts
The record in Alexandria
SwiftPro has 5.0 stars across 1,137 reviews on Google, Angi, Yelp, the BBB and Facebook, holds Virginia contractor license 2705192276 and is BBB Accredited with an A rating. Each job is written from the technician’s own notes on a visit in Alexandria. Each name is someone an Alexandria customer wrote about in a review.
A furnace pressure switch
A no-heat call: the furnace tried to light three times and locked out, with error code 3.2 for an open pressure switch. The inducer motor was checked and clear, then about half a cup of water was drained out of the pressure switch and the furnace ran normally again.
A Moen shower cartridge
A worn Moen 1222 Positemp cartridge replaced in the shower. The water was shut off and the system drained first, then turned back on and checked for leaks.
Edis, HVAC technician
“HVAC technician Edis was on time, very knowledgeable”
James, plumber
“James M. did a great job diagnosing and fixing the issues I was having with two of my toilets.”
What’s in an Alexandria house
Alexandria spans more plumbing eras than anywhere else we work.
Half the owner-occupied houses in the City of Alexandria were built before 1970, so one street can hold galvanized supply, cast iron drains, 1960s copper and grey polybutylene from the 1980s, each failing its own way.
Most Alexandria addresses we work at are really in Fairfax County: Kingstowne, Franconia, Rose Hill, Mount Vernon. Inside the City we still work on boilers and radiators; on the county side they’re rarer.
On the older City streets, ask about the chimney before a new high efficiency furnace goes in. It can leave the water heater alone on a flue sized for two, and the fuel gas code requires that flue to be checked.
Corroded, split sections of old sewer pipe we took out of a Northern Virginia yard, laid out for the homeowner to see.
What we fix in Alexandria
A dedicated HVAC team and a dedicated plumbing team under one roof, so the leak that turns out to be your AC doesn’t need a second company.
Every kind of heat, from boilers and radiators on the older City streets to heat pumps and gas furnaces on the county side. The chimney question is the one to ask on any furnace quote for an older City house. On the Fairfax County side, furnace and heat pump repair in Fairfax County lists the repair prices.
Most AC repairs come down to a handful of parts: a capacitor, a contactor, a refrigerant leak, a condensate drain backing up. Each one is priced on our Alexandria AC repair page. Duct cleaning has its own Alexandria page, including when it’s worth doing.
Cast iron drains rust from the inside along the bottom of the pipe. Slow drains that keep coming back, or a sewer smell you can’t find, are the signs, and a camera settles it. Old Town still runs on a combined sewer, and the City pays back half the cost of a sewer backflow preventer.
What it costs
Our prices are the same in every town we serve, and you get the number in writing before any work starts.
In Alexandria, a new furnace and air conditioner installed together runs $8,898 to $23,000, and a heat pump system runs $8,499 to $21,650. The size of the house and the efficiency you pick set where yours lands.
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
Prices checked .
These come straight from the price book on our plumbing page and our AC repair page. Replacing a water heater? The water heater estimator prices yours, permit included, in about a minute.
In a rowhouse or a condo, access is the variable, and it belongs in the quote rather than on the day.
The new-system ranges are the same price book as our HVAC replacement page, and the HVAC estimator narrows yours to the house before anyone comes out.
Alexandria paperwork
The city line splits it. The City of Alexandria is on Virginia American Water, which buys from Fairfax Water: 4.6 to 11.2 grains per gallon in 2025. The Fairfax County side is on Fairfax Water directly, 3.0 to 10.8.
Reports: Virginia American Water, 4.6 to 11.2 gpg; Fairfax Water, 3 to 10.8 gpg.
The City of Alexandria inside the city, Fairfax County on the county side. In the historic districts, an outdoor unit people can see from a street needs Board of Architectural Review approval; a barely visible one on the ground in a side or rear yard can be approved by staff, screened if it shows.
Permit pages: City of Alexandria or Fairfax County.
About 540 acres of Old Town still run on a combined sewer from the 1800s. RiverRenew keeps its overflow out of the river but doesn’t stop basement backups, so the City reimburses half the cost of a sewer backflow preventer, up to $2,000.
Sources: the City’s sewer page and the City’s backflow program and the Board of Architectural Review’s policy.
From our Google reviews
Hard to find service like this in Alexandria.
…we had swift and professional responses for multiple plumbing and HVAC needs in our Rosemont Alexandria condo
I would gladly recommend them to anyone in the greater Fairfax/Alexandria area without reservation.
Watch it on video: Patrick’s review of HVAC service in Alexandria (18 seconds) and Michelle’s review of toilet repair in Alexandria (26 seconds).
5.0 stars across 1,137 reviews. Read them on our reviews page.
Voted a Nextdoor Neighborhood Faves winner two years running: 2026 in 30 Northern Virginia neighborhoods, 2025 in Emerald Chase (Herndon) and Hunters Run (Chantilly).
Listed in both the HVAC and Plumbing categories of Northern Virginia Magazine’s Best Home Experts directory, which is exactly how we’re built: a dedicated HVAC team and a dedicated plumbing team.
Named BusinessRate’s Best of 2026: the #1 heating contractor in Fairfax, Virginia, ranked on Google reviews. See our BusinessRate score.
In Alexandria, SwiftPro’s vans come out most for plumbing repairs, heating and cooling repairs and maintenance visits.
Alexandria is 22 miles from SwiftPro’s Chantilly shop, and the van that comes to you is coming from the last job, not from the shop. SwiftPro charges no distance fees anywhere it serves.
More of our customers live around Alexandria than around our own shop in Chantilly.
HVAC service near you: every town we serve, what each job costs, and the miles from our two shops.
…Thankfully they arrived on July 4th which was greatly appreciated. No one else would come out do to the holiday.
Where in Alexandria
In the City: Old Town, Del Ray, Rosemont, Parker-Gray, Seminary Hill and the West End. On the Fairfax County side: Kingstowne, Franconia, Rose Hill, Huntington, Belle Haven, Hybla Valley, Mount Vernon and Lincolnia. Next door:
The system we put in first
Built to take a beating. Put in by our crew.
Heat lamps, snow and rain on one outdoor unit: that’s Trane’s own film. We’re a Trane Comfort Specialist, on Trane’s own dealer locator, and when you pick a Trane, our crew puts it in.
Films: Trane’s own.
Asked out loud
SwiftPro Heating, Cooling & Plumbing. Here’s what you can check: Virginia contractor license 2705192276, BBB Accredited with an A rating, and 5.0 stars across 1,137 reviews. It was named BusinessRate’s Best of 2026, the #1 heating contractor in Fairfax, Virginia. From an Alexandria heating and cooling job in October 2026: A no-heat call: the furnace tried to light three times and locked out, with error code 3.2 for an open pressure switch. The inducer motor was checked and clear, then about half a cup of water was drained out of the pressure switch and the furnace ran normally again. An Alexandria customer on Edis, one of our HVAC technicians: “HVAC technician Edis was on time, very knowledgeable” We answer day or night, and we will tell you honestly when we can get there.
SwiftPro Heating, Cooling & Plumbing. Ask any plumber for a license number, a public record and work in your town. Ours: Virginia contractor license 2705192276, BBB Accredited with an A rating, and 5.0 stars across 1,137 reviews. From an Alexandria plumbing job in October 2026: A worn Moen 1222 Positemp cartridge replaced in the shower. The water was shut off and the system drained first, then turned back on and checked for leaks. An Alexandria customer on James, one of our plumbers: “James M. did a great job diagnosing and fixing the issues I was having with two of my toilets.” We answer day or night, and we will tell you honestly when we can get there.
A new furnace and air conditioner installed together runs $8,898 to $23,000 in Alexandria, and a heat pump system runs $8,499 to $21,650. From about $148 a month at 0% APR for 60 months, the whole price financed, on approved credit. Replacing only the air conditioner runs $5,942 to $14,450, only the gas furnace $4,285 to $14,040, and a one-zone ductless mini split $7,000 to $10,000. The size of the house, the efficiency you pick and what the old system leaves behind set where yours lands. On the older City streets that includes the chimney: a high efficiency furnace vents through PVC and can leave the water heater alone on a flue sized for two, which has to be checked.
Both. SwiftPro Heating, Cooling & Plumbing works across the City of Alexandria, from Old Town and Del Ray to the West End, and across the Fairfax County side with an Alexandria address, from Kingstowne and Franconia to Mount Vernon. Most of the Alexandria addresses we work at are on the county side, which changes the water utility and the permit office, not the work.
Yes. The City of Alexandria reimburses half the cost, up to $2,000, when a plumber licensed by both the state and the City installs a sewer backflow preventer in a house with a basement, under a permit that passes its final inspection. It matters most in Old Town, where about 540 acres still run on a combined sewer. The rules are on the City’s backflow program page.
Usually, with the right sign-off. In Alexandria’s historic districts, the Board of Architectural Review only reviews what people can see from a street or public place. A barely visible condenser on the ground in a side or rear yard can be approved by staff, and if it shows it has to be screened; plan on a staff review for a visible swap too. The BAR’s administrative policies spell it out.
It depends which side of the city line you’re on. In the City, Virginia American Water’s 2025 figures ran from 4.6 to 11.2 grains per gallon; on the Fairfax County side, Fairfax Water ran 3.0 to 10.8. Both are moderately hard to hard, which is why SwiftPro tells Alexandria homeowners with a tank water heater to flush it every year and anyone with a tankless unit to descale it.
Because the city grew over more decades than anywhere else nearby. Houses from before 1960 often have galvanized steel supply and cast iron drains, 1960s houses have copper from the era that grows pinhole leaks, and subdivisions from 1978 to mid 1995 can have grey polybutylene. SwiftPro’s Alexandria plumbing write-up shows how to tell which you have in three minutes.
Ready when you are
Call and say where you are. We’ll tell you what’s typical for houses like yours, what it usually costs, and when we can be there.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
SwiftPro Plumber & Water Heaters
4200 Lafayette Center Dr, Suite N, Chantilly, VA 20151
Virginia Class A contractor license #2705192276
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company serving Northern Virginia, including Chantilly, Herndon, Reston and Fairfax. SwiftPro holds Virginia contractor license #2705192276, is a Trane Comfort Specialist, Rheem Pro Partner and Mitsubishi Diamond Contractor, holds 5.0 stars across 1,137 reviews on Google, Angi, Yelp, the BBB and Facebook, was voted a Nextdoor Neighborhood Faves winner two years running, for 2026 in 30 Northern Virginia neighborhoods and for 2025 in Emerald Chase (Herndon) and Hunters Run (Chantilly), was named BusinessRate’s Best of 2026, the #1 heating contractor in Fairfax, Virginia, and is listed in both the HVAC and Plumbing categories of Northern Virginia Magazine’s Best Home Experts directory. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team. More at goswiftpro.com.
In Alexandria, SwiftPro repairs and replaces furnaces, boilers, heat pumps, air conditioners and ductless mini-splits, cleans air ducts and dryer vents, and handles plumbing from drains, leaks and cast iron lines to water heaters and sewer camera inspections, in the City of Alexandria and on the Fairfax County side.
SwiftPro Heating, Cooling & Plumbing, 4230 Lafayette Center Dr N, Chantilly, VA 20151, (703) 997-9757. Every town we serve is on the town-by-town guide.