Furnace tune-ups in Great Falls.
A furnace tune-up in Great Falls is $69 a system, regularly $99, whether it burns natural gas from the main or propane from a tank in the yard.
- Priced per system, in writing
- Gas and propane furnaces
- Dedicated HVAC team
Book your furnace tune-up
Great Falls furnaces: pipes at the daylight wall, flues beside the fireplaces.
About 2,160 Great Falls owner homes heat with natural gas and about 390 with propane, by the Census count. That propane share, one owner home in twelve, is more than five times the county’s, and both fuels get the same visit at the same $69. Another 1,860 or so heat with electricity, usually through a heat pump, and a heat pump’s tune-up is that same $69. Some of the big houses use both, a furnace for the basement and main floor and a heat pump for the bedrooms, each with its own tune-up at that price.
The county’s records give two in three Great Falls houses a daylight basement, one side open to the yard at ground level. A high-efficiency furnace down there often sends its two white plastic pipes out through that wall, not far above the grass, right where leaves drift in November and snow banks up in January. Block either pipe and a pressure switch, one of the safeties the tune-up tests, keeps the burners from lighting. Rake those pipe ends clear with the yard.
An older furnace often vents up a masonry chimney instead. Nearly every house here has a fireplace on the county’s books and about a third have three or more, so plenty of 1970s and 80s houses carry a big chimney with several flues. Where the furnace still vents by natural draft, it usually takes one of those flues, often shared with a gas water heater. The tune-up checks that its exhaust actually goes up, and tests the switch that shuts the burners off if the exhaust spills back.
September suits it here. The air conditioning still carries the afternoons, and anything the tune-up finds, a cracked igniter, a tired inducer motor, a nest in a pipe end, gets fixed before the house needs heat. Two furnaces are two tune-ups at $69 apiece, done on one trip.
Great Falls houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
Great Falls
- Median home built1986 Census
- Built before 1980about 4 in 10 Census
- Built since 2000about 2 in 10 Census
- Most homes aresingle-family houses, nearly all Census
- Heated withgas, about 5 in 10 Census
- Rentedhardly any Census
- A few homes here still burn heating oil. We don’t work on oil burners; a switch to a heat pump or a propane furnace is ours to price.
- Some homes here run on propane, and a propane furnace gets the same tune-up.
What a furnace tune-up costs in Great Falls.
$69 for one furnace, regularly $99, 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$69
- Furnace tune-up, regularly$99
- Heat pump, boiler or ductless mini split tune-up, one system$69
- 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 $69 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.
When a furnace tune-up earns its keep in Great Falls.
It lights, runs a minute, then quits
On a high-efficiency furnace that usually means the pressure switch sees a blocked pipe or a backed-up condensate drain and shuts it down, as it should. Check the pipe ends on the daylight side for leaves, snow or a nest before you call.
You heat with propane
Propane runs at a different gas pressure than natural gas, so the tune-up checks yours against propane’s numbers.
Before the first cold night
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.
What the county says about furnace care in Great Falls.
Fairfax County
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.
How to pick who tunes up your furnace in Great Falls.
Questions to ask anybody who quotes you, us included.
Will they look at where the exhaust leaves the house?
A tune-up done only at the furnace can miss the outside end: the plastic pipes at the daylight wall, or the flue an older furnace uses. Ask whether the tech checks the vent end to end.
Do they say what the tune-up checks?
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.
Will they tell you what can wait?
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.
What our customers say.
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.
5.0 stars across 884 Google reviews. Read them on our reviews page.
Furnace tune-up questions from Great Falls.
Does the furnace tune-up cover our chimney?
No. Fairfax County Fire and Rescue says a chimney serving a wood-burning fireplace should be cleaned and inspected by a licensed chimney sweep at least once a year, and capped. The tune-up covers the furnace and whether its exhaust goes up its flue the way it should. Book both in early fall.
The propane company fills our tank. Who looks after the furnace?
We do, from the shutoff valve beside the furnace inward, at the same $69 as natural gas. The fuel, and usually the tank and the line across the yard, stay with your supplier.
How much is a furnace tune-up in Great Falls?
$69 for one furnace, regularly $99, 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.
Is this the Heating Check or the Clean Heat?
No. The furnace tune-up is its own visit at $69. 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.
More from SwiftPro in Great Falls.
More from SwiftPro in Great Falls
Get the furnace looked at before you need it.
Call, or book online and pick a window. One furnace is $69, and anything it needs gets a written price before any work.
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Great Falls and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 884 Google reviews. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
SwiftPro Heating, Cooling & Plumbing, 4230 Lafayette Center Dr, Suite N, Chantilly, VA 20151, (703) 997-9757. Book online, read our reviews, or see every town we serve.