Open 24/7 for emergencies
A furnace tune-up in Oakton is $99 a system, for natural gas or propane, in a basement, an attic or a condo closet.
Get your price in writing
Send this and the office calls or texts you back to set a time.
We’ll call or text this number about your request. By sending it you agree to our terms and privacy policy.
Rather talk now? (703) 997-9757
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 Oakton
Fairfax County’s assessment records show gas service on only about half of Oakton’s homes, and the split runs by decade: detached houses from the 1970s are gas connected less than a third of the time, those from the 1990s and 2000s 93 percent of the time. So the newer house on an Oakton street is the likelier one to have a furnace, and it may well have two.
Hearthstone Village, Timber Lake, Willow Creek Estates, Wheatland Farms, Fairwinds, Hannah Hills and Bridges of Oakton are the clearest case: 333 houses, nearly all on gas, with a median of about 4,700 square feet above ground. A house that size often splits its heat between a basement furnace for the main floors and an attic one for the bedrooms, each its own tune-up at $99.
The attic furnace is the one to watch. Its blower pushed the bedroom cooling all summer through an attic that bakes, and a high-efficiency model up there makes water every time it burns, draining through a trap, a line and a pan right over the bedroom ceilings. A 1995 house still on the builder’s pair is past 30 winters. The tune-up lights each furnace and runs it all the way through, so a slow igniter or a lazy inducer shows itself on a mild October day.
Some attached homes burn gas too: the county lists it on every unit of the Oakton condominium on Oakton Terrace Road and nearly all of Concord Village, Wyant Property and Oakton Manor, and a gas furnace in a closet or basement there gets the same visit as any house. On the big 1970s and 80s lots where no main reaches, a gas furnace runs on propane from a tank, about four in a hundred Oakton owner homes by the Census count, and the tech reads its burner pressure against propane’s settings.
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 |
|---|---|---|---|---|
| Oakton | 1981 | single-family houses, about 4 in 10 | gas, about 6 in 10 | 1980s and 90s houses, most on their second gas furnace. |
| Difficult Run | 1982 | single-family houses, nearly all | gas, about 6 in 10 | 1980s and 90s houses, most on their second gas furnace. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
ZIP 22124 as a whole: every Oakton address. The Oakton Census place in the table also takes in streets with Vienna and Fairfax mail.
When it’s worth doing
The attic unit’s blower carried the bedroom cooling from June to September, so by fall its filter has a full season on it, and its burners haven’t lit since spring. Book that furnace first, before the bedrooms need it.
Propane runs at a different gas pressure than natural gas, so the tune-up checks yours against propane’s numbers.
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.
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.
A high-efficiency furnace makes water, and in an attic that water travels over finished ceilings. Ask whether the tech clears the trap and the line and looks in the pan underneath, not just at the burners and the flame.
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.
Elvis Diaz did an excellent job cleaning our condo’s HVAC system. He was very knowledgeable about maintaining the unit and the price was very reasonable.
Where we work
Next door to Oakton: Fairfax, Vienna, Reston, Dunn Loring and Herndon.
Questions
Check for a propane tank first. With neither a meter nor a tank, the heat is usually electric, an air handler indoors with a heat pump outside doing the heating. Its tune-up is the same $99 a system, so the price doesn’t hang on the answer.
Two, at $99 each, since each furnace has its own burners, safeties and blower. Booked together, both get done on one trip and their readings land on one page, side by side.
$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 Oakton 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.