Furnace tune-ups in Herndon.
A furnace tune-up in Herndon is $69 a system, regularly $99. Inside the town about 6 in 10 owners heat with electricity, and a heat pump tune-up is $69 too.
- Priced per system, in writing
- Gas and propane furnaces
- Dedicated HVAC team
Book your furnace tune-up
Gas furnaces are the minority inside the town, and the rule in McNair and Floris.
About six in ten owners inside the Town of Herndon heat with electricity, which usually means a heat pump outside and an air handler with backup strips indoors. Most of the rest burn gas. Behind a closet door the two look alike, so here’s the quick check: a furnace has a gas pipe running in and a vent pipe, metal or white plastic, running out. An air handler has neither. No pipes? That’s a heat pump system, and its tune-up costs the same as a furnace’s.
Most gas furnaces in the town have been replaced at least once since the houses went up, and one from the last thirty years has a small fan that clears the vent before anything lights. The tech watches that start, the sequence of operation: the fan spins up, a pressure switch confirms the vent is drawing, the igniter glows, the burners catch, the flame is proven, and only then does the blower send warm air out. A step that hesitates in October is often the one that quits on a January night.
Across the county side gas takes over by neighborhood. About seven in ten McNair owners heat with it, and most of McNair went up after 2000, so plenty of those furnaces are the builder’s, near twenty winters in, many of them compact units in condo closets. Floris is about six in ten gas, mostly 1980s and 90s detached houses with the furnace in the basement. Franklin Farm splits close to evenly and Dranesville leans electric, so there the closet question comes first.
Fire and rescue inside the town is Fairfax County’s. Station 4 on Spring Street is a county station, so the county’s furnace advice further down this page holds on both sides of the town line. The county also keeps a limited number of carbon monoxide alarms for residents who need one, and the local fire station comes out to put it up.
What the furnaces look like across Herndon.
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 |
|---|---|---|---|---|
| Franklin Farm | 1985 | single-family houses, about 9 in 10 | electricity, about 5 in 10 | Mostly heat pumps; furnaces are the smaller share. |
| Herndon | 1981 | single-family houses, about 4 in 10 | electricity, about 6 in 10 | Mostly heat pumps; furnaces are the smaller share. |
| Dranesville | 1984 | single-family houses, nearly all | electricity, about 6 in 10 | Mostly heat pumps; furnaces are the smaller share. |
| McNair | 2003 | condo and apartment buildings, about 6 in 10 | gas, about 7 in 10 | Condo buildings: compact gas furnaces in closets. |
| Floris | 1990 | single-family houses, about 8 in 10 | gas, about 6 in 10 | 1980s and 90s houses, most on their second gas furnace. |
| Hutchison | 1979 | townhouses, about 5 in 10 | electricity, about 7 in 10 | Mostly heat pumps; furnaces are the smaller share. |
| Sully Square | 2015 | condo and apartment buildings, about 6 in 10 | gas, about 6 in 10 | Condo buildings: compact gas furnaces in closets. |
Herndon houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
The Town of Herndon
Inside the town limits. Floris, Franklin Farm, McNair and Dranesville, on the Fairfax County side, are counted by the Census as places of their own.
- Median home built1981 Census
- Built before 1980about 4 in 10 Census
- Built since 2000about 2 in 10 Census
- Most homes aresingle-family houses, about 4 in 10 Census
- Heated withelectricity, about 6 in 10 Census
- Rentedabout 4 in 10 Census
- Electric heat here usually means a heat pump with backup strips rather than a furnace, and a heat pump tune-up is the same $69 a system.
- Plenty of 1980s and 90s houses here are on their second furnace, often a high-efficiency one venting out the side wall in plastic pipe.
What a furnace tune-up costs in Herndon.
$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 Herndon.
It lights, then gives up a few seconds later
Burners that catch and go out, a few tries and then nothing, usually mean the furnace can’t prove its flame, so it shuts the gas off for safety. Running the sequence of operation is where that shows up. If it won’t light at all, that’s a repair, and our Herndon furnace repair page prices the common ones.
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.
You just bought the house
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.
What the county says about furnace care in Herndon.
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 Herndon.
Questions to ask anybody who quotes you, us included.
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.
Showed up on time, worked quietly, recommended other maintenance procedures for my HVAC system. Good overall experience.
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Furnace tune-up questions from Herndon.
My Herndon townhouse furnace is in a closet beside the water heater. How do I get ready?
Clear the closet and a path to it. The county’s three-foot rule for anything that burns counts in a closet as much as in a basement. If the door is louvered, leave it: a closet furnace often draws the air it burns through that door.
Does a propane furnace in Herndon get the same tune-up?
Yes. About one owner in a hundred inside the town burns propane from a tank, a few more in McNair. They get the same visit and price, with the gas pressure read against propane’s settings, which run higher than natural gas.
How much is a furnace tune-up in Herndon?
$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 Herndon.
More from SwiftPro in Herndon
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 Herndon 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.