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A furnace tune-up in Annandale is $99 a system. Gas heats about seven houses in ten here, mostly from the lowest floor.
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5.0 stars across 1,132 reviews
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 Annandale
Gas heats about seven Annandale houses in ten, and nearly eight in ten in Wakefield. All summer the burners sit cold while the blower above them works for the air conditioner, and dust settles on the burners and the flame sensor. Then the first cold night asks the furnace to light and shut down over and over until April. The tune-up reads the gas pressure and the temperature rise with the panel off, so a weak part shows up in October, not at 2 a.m. in January.
The furnace in a 1967 house is rarely its first, so Annandale basements hold both kinds. A standard-efficiency furnace still exhausts up the masonry chimney, usually beside the water heater; a high-efficiency one pipes it out a side wall in PVC and drips condensate into a trap. After a summer off, the first tends to trip on a flue that isn’t drawing, the second on a blocked trap or vent.
Inside 22003 the heat changes with the street. Wakefield is about 95 homes in 100 single-family, so the furnace there is mostly gas, on the lowest floor, with the AC coil on top. In the Annandale Census place, with its condo buildings around Little River Turnpike and Columbia Pike, and in Woodburn, about a quarter of owners heat with electricity, most often a heat pump with a closet air handler. That isn’t a furnace, but a heat pump and its closet air handler are one system, and its fall tune-up is the same $99.
About three Annandale homes in ten are rented, and four in ten in Woodburn. For an apartment or a leased condo, Fairfax County wants heat that keeps every habitable room at 68 degrees or more from October 15, so a landlord’s tune-up belongs in late September or early October, with time left to fix whatever it turns up.
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 |
|---|---|---|---|---|
| Annandale | 1967 | single-family houses, about 5 in 10 | gas, about 7 in 10 | Gas furnaces in older houses, often on a chimney shared with the water heater. |
| Wakefield | 1968 | single-family houses, nearly all | gas, about 8 in 10 | Gas furnaces in older houses, often on a chimney shared with the water heater. |
| Woodburn | 1968 | single-family houses, about 4 in 10 | gas, about 6 in 10 | Gas furnaces in older houses, often on a chimney shared with the water heater. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
When it’s worth doing
When an Annandale lower level was finished, the furnace often ended up in a closet barely bigger than it is, with paint cans and boxes moving in. A gas furnace drawing its air from the room needs enough of it to burn right, so point a boxed-in one out to the tech.
That’s the night every furnace in town gets asked to work at once. A tune-up in the fall finds a weak part while you still get to choose when it’s fixed.
The home inspector ran the heat for a minute. A tune-up runs it through a full cycle with the panel off, and tells you what the last owners left you.
Safety and paperwork
Fairfax County Fire and Rescue says to have the heating system cleaned and checked by a professional every year, and to keep anything that burns at least three feet from the furnace and the water heater. Source.
Fairfax County Fire and Rescue names a faulty gas furnace or water heater as a carbon monoxide source, says to have gas appliances inspected every fall, and to put a CO alarm on every floor. 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.
In 22003 it could be a gas furnace in a basement, a heat pump with a condo closet air handler, or now and then a propane furnace, which runs at its own gas pressure. A company that asks sends someone ready for yours.
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.
Showed up on time, worked quietly, recommended other maintenance procedures for my HVAC system. Good overall experience.
Where we work
Next door to Annandale: Falls Church, Springfield, Dunn Loring, Burke and Fairfax.
Questions
Yes. It has more parts that can stop the heat on their own: an inducer motor, a pressure switch, a condensate trap and a pipe out the side wall where leaves or a nest can block it. The tune-up proves each one works.
Not first. Leave the house, then call 911 and Washington Gas’s leak line from somewhere safe, which is Washington Gas’s own advice. Book the tune-up once the house is safe.
$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 Annandale 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.