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A furnace tune-up in Dumfries is $99 a system, for natural gas and propane furnaces and the heat pumps beside them.
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Two of our heating technicians in a Northern Virginia basement, beside an open gas furnace.
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
$99 for one furnace, anywhere we work. The tech checks the gas pressure, the temperature rise, the safeties and the sequence of operation, which is the order the furnace lights, heats and shuts down in. A repair it turns up gets a written price first, and you decide.
Furnace tune-up, one system
$99
Heat pump, boiler or ductless mini split tune-up, one system
$99
Comfort+ membership, a heating maintenance visit every fall included
$199 a year
It’s priced per system, so a house with a second furnace for the upstairs is two tune-ups. A heat pump, a boiler or a ductless mini split is the same $99 a system.
With Comfort+ membership, $199 a year or $20 a month covers four visits every year: a heating maintenance visit in the fall, a cooling maintenance visit in the spring, a dryer vent cleaning, and a water heater flush with a sewer camera inspection. We book each one when it’s due.
What’s different in Dumfries
Inside the Town of Dumfries about four owner homes in ten heat with natural gas and a little over one in twenty with propane; about half heat with electricity, usually through a heat pump. The Town lists two gas companies, Columbia Gas and Washington Gas. Whichever one feeds your meter, the furnace’s own valve sets what reaches the burners, and that pressure, read with a gauge, is where the tune-up starts. Too low and the flame runs lazy; too high and the heat exchanger runs hot.
A propane house adds links to the chain: the tank in the yard and one or two regulators stepping its pressure down on the way to the furnace. The tune-up reads it at the furnace end, where it counts. New to a propane house? Find out whether the tank is yours or leased from the company that fills it.
The oldest houses in the Town sit on single-family streets like Whitehaven, whose houses Town records date from 1930 on, and Tripoli Heights, from 1950 on. A gas furnace in a house that age may still vent up a masonry chimney beside the water heater. The tune-up watches that draft through a full cycle, because exhaust that hangs at the furnace instead of rising is what the venting safety is there to stop.
In the townhouse rows, Williamstown and Port O’Dumfries among them, a gas furnace may sit in the attic. If it’s been swapped for a high-efficiency one that makes water as it burns, the drain line crosses an unheated attic, and a line that freezes on a hard January night shuts the furnace off. Cherry Hill, median owner home built 2005, has the most gas of the three places on a Dumfries address, seven owners in ten. Montclair is about half electric, and a heat pump there gets its fall tune-up at the same $99 a system as a furnace.
Neighborhood by neighborhood
Census figures for the owner-occupied homes in each place, and what that usually means for a tune-up.
| Place | Median home built | Most homes are | Heated with | What the tune-up usually meets |
|---|---|---|---|---|
| Montclair | 1989 | single-family houses, about 8 in 10 | electricity, about 5 in 10 | Mostly heat pumps; furnaces are the smaller share. |
| Cherry Hill | 2005 | townhouses, about 4 in 10 | gas, about 7 in 10 | Townhouse furnaces in closets and attics. |
| Dumfries | 1985 | townhouses, about 4 in 10 | electricity, about 5 in 10 | Mostly heat pumps; furnaces are the smaller share. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
Nearly all of the Town sits in 22026, with a sliver in Triangle’s 22172. None of it is in 22025.
Montclair in 22025, where the Postal Service accepts Montclair as the town name; Southbridge and Cherry Hill in 22026, outside the town line.
ZIPs 22025 and 22026 as a whole: Montclair, Cherry Hill and the rest of Dumfries mail, the Town’s homes included.
When it’s worth doing
From May to October nobody needs the furnace, and its closet fills up. Clear it before the tech comes and keep it that way: in a townhouse closet the furnace may draw its combustion air from that same small space, and paint, cleaners and cardboard don’t belong beside a flame.
Propane runs at a different gas pressure than natural gas, so the tune-up checks yours against propane’s numbers.
A furnace that went in with the house is close to 20 years old on a lot of these streets. That’s the age when inducer motors and control boards start to go, and a yearly look finds the tired ones before a cold night does.
Safety and paperwork
Prince William County Fire and Rescue says to have a qualified technician inspect the heating system and chimneys every year, to make sure nothing blocks the fumes from venting out of the house. Source.
Prince William County Fire and Rescue lists furnaces and water heaters among the household sources of carbon monoxide, and says to put a CO alarm outside each sleeping area and on every level of the home and to test it monthly. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who tunes it up
Questions to ask anybody who quotes you, us included.
A propane furnace set to the wrong pressure can look fine for a minute. Ask whether the tech reads the pressure at the gas valve, compares it with what the rating plate calls for on propane, and tells you the number.
Ask before anyone comes out. Gas pressure and temperature rise are readings on a meter, so a real tune-up has numbers in it, not just a look at the filter.
Some tune-ups end in a list. Ask which items are failing now, which can wait a season, and what each one costs, before you agree to any of it.
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.
SwiftPro (Moises) did an excellent job assessing our HVAC system and explaining its current condition. We will likely work with them again in the future.
Where we work
Next door to Dumfries: Triangle, Quantico, Woodbridge, Lorton and Stafford.
Questions
Early fall, before the Town’s rental inspector sees the place. Inside its rental districts the Town issues a rental certificate only after a home passes inspection, and the property maintenance code behind it covers heating. Anything the tune-up turns up is priced in writing first.
$99 for one furnace, and the same for a heat pump, a boiler or a ductless mini split. If it turns up a repair, you get the price in writing before any work, and you decide.
No. The furnace tune-up is its own visit at $99. The Heating Check and the Clean Heat deep clean, the one that takes the blower wheel out and cleans it, are separate offers with their own terms on our Clean Heat page.
Ready when you are
Call, or send the form at the top. One furnace is $99, and anything it needs gets a written price before any work.
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 Dumfries 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.