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A furnace tune-up in Chantilly is $99 a system. South Riding burns gas; in 20151 it’s close to half heat pumps, same price.
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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 Chantilly
Across 20151 the heat splits close to down the middle: about half the homeowners burn gas, and most of the rest are on electric heat, in a 1980s or 90s Chantilly house most often a heat pump. From a utility room doorway you can’t always tell them apart, and for the price it doesn’t matter: a furnace with burners and a flue pipe or an air handler with heat strips, either one is $99 a system.
On a gas furnace the tech takes the panel off, fires it through a whole heating cycle and makes each safety prove it works: the high limit that cuts the burners if the furnace overheats, the rollout switches beside the burners, and the pressure switch that keeps the gas closed until the exhaust is moving.
South Riding, across the county line in 20152, is gas country: about 8 in 10 homeowners heat with it, in houses mostly built after 2000. In the townhouses, nearly half the homes there, the furnace often sits in the attic, out of sight. Its filter is often out of reach too, behind a ceiling grille on the top floor: the easiest filter in town to forget.
Greenbriar, the older corner of 20151, leans further toward gas: close to 7 in 10 owners there burn it, in houses from around 1970, most likely on their third furnace. On both sides of the line about 2 in 100 heat with propane, and those furnaces are tuned up the same way, with the pressure read against propane’s numbers. No heat today? Call it in as a repair; our Chantilly furnace repair page lists what those cost.
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 |
|---|---|---|---|---|
| South Riding | 2006 | single-family houses, about 5 in 10 | gas, about 8 in 10 | Townhouse furnaces in closets and attics. |
| Chantilly | 1987 | single-family houses, about 6 in 10 | gas, about 5 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.
When it’s worth doing
When a South Riding condensing furnace, the kind that drains water, sits in an unheated attic, that pattern often points at its drain line freezing overnight and thawing once the sun warms the roof. Mention it when you book.
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.
Up there it’s the one nobody looks at until the bedrooms go cold. A tune-up gets somebody up the ladder before that.
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.
In its fall clock-change reminder, Loudoun County’s fire and rescue system tells residents to check their carbon monoxide alarms, and recommends one outside each sleeping area and on each level of the home, tested 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.
In South Riding the furnace is often up a pull-down ladder. Ask whether the tech opens it up there and runs every stage of a heating cycle, instead of judging from the hall thermostat.
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.
Arrived within an hour on a Sunday morning and provided great service.
Called SwiftPro around 5 am and their electronic system scheduled an appointment for us same day.
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 Chantilly: Centreville, Catharpin, Herndon, Aldie and Oakton.
Questions
No. Parts of Chantilly are on Columbia Gas, and the furnace can’t tell the difference. The tech reads the incoming pressure at the furnace’s own gas valve and compares it with the number on its rating plate.
It can, but September and October are easier. Once the nights drop below freezing, most furnaces in 20151 and 20152 run nightly, and anything the visit finds gets fixed on the furnace’s timetable, not yours.
The same tune-up, at the same $99 a system. A heat pump heats with the outdoor unit that cooled the house all summer, plus electric strips inside for the coldest mornings, so in the fall the tech runs it in heating and works through those parts.
$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 Chantilly 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.