Furnace replacement in Broad Run.
A new propane furnace in Broad Run runs $4,285 to $14,040 installed, keeping your AC. About three in ten owners here heat with propane.
- Installed price in writing
- Sized to the house, not the old nameplate
- Dedicated HVAC team
Get your furnace priced in writing
A new Broad Run furnace burns propane, so the yard tank is part of the job
Utility gas doesn’t show in the Broad Run numbers: the Census counts none of the ZIP’s 660 owner homes heating with it. Just over half use electricity, close to three in ten propane and about one in seven oil. A furnace replacement here is a propane job, so the fuel line, the tank and the supplier’s regulator belong in the quote, along with the conversion if the furnace was built for natural gas.
The middle owner home here was built in 1979, and just over half predate 1980. The furnace now in one of those houses may vent differently from the one before it. An older furnace often exhausts through a metal flue or masonry chimney; a new high-efficiency one exhausts through plastic pipe out a side wall, which changes what goes through the wall or roof and belongs in the quote.
In Broad Run the furnace is the harder worker: at the Warrenton 3 SE record, heating degree days outrun cooling ones by better than four to one. So the furnace is the half worth replacing early, and the outdoor air conditioner can wait if its rating plate shows a much later year. When the plate shows a year near the furnace’s, ask what the pair costs together: $8,898 to $23,000 installed.
A fuel-burning furnace is permit work in both of this ZIP’s counties. Fauquier County wants a permit for any fuel-fired appliance, so a propane furnace swap takes one even in the old furnace’s spot; its trade permits need no plans. Prince William County, home to about one Broad Run house in six, requires one to replace a gas or propane furnace even like for like.
Broad Run houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
The Fauquier County side
ZIP 20137 as a whole: every Broad Run address. About one home in six of them is on the Prince William County side.
- Median home built1979 Census
- Built before 1980about 5 in 10 Census
- Built since 2000about 2 in 10 Census
- Most homes aresingle-family houses, nearly all Census
- Heated withelectricity, about 5 in 10 Census
- Rentedhardly any Census
- Propane heats a real share of homes here, and we replace propane furnaces too.
- Most homes here heat with electricity, usually a heat pump; a furnace swap here is for the gas and propane houses.
What a new furnace costs in Broad Run.
The same price book our estimator runs on, for a gas furnace on its own, 2 to 5 tons, keeping the air conditioner you have. A single-stage furnace in a small house sits near the bottom; a modulating one in a big house, near the top.
- A gas furnace alone, keeping your air conditioner, installed$4,285 to $14,040
- A furnace and air conditioner together, installed$8,898 to $23,000
- Repair diagnostic visit, if it may be worth fixing$99
The HVAC replacement cost estimator narrows it to your house. Then a tech measures, and you get the installed price in writing, at no charge, before anything is ordered.
Natural gas or propane, in a house, a townhouse or a condo, we replace them all. Oil furnaces we don’t.
When a new furnace makes sense in Broad Run.
Repairs have stacked up and the heat is still uneven
A furnace that has needed a board, a blower and an igniter within a couple of winters is telling you something. Put the repair list and the diagnostic, $99, on one side and the replacement range on the other. Short-cycling is the same question.
It shares a chimney with the water heater
A high-efficiency furnace vents out the side in plastic pipe, which can leave the water heater alone in a chimney sized for two. Ask about that before you pick a furnace, not on install day.
You heat with propane
We replace propane furnaces as well as natural gas ones. The new furnace is set up for propane before it’s lit, and the quote is written for your house.
Who signs off on a new furnace in Broad Run.
Fauquier County
Fauquier County wants a permit for any fuel-fired appliance, so a gas or propane furnace replacement is permit work even in the same spot. Trade permits need no plans, and usually no zoning approval. Source.
Outside the town limits, Fauquier County issues the permit. It wants one for any fuel-fired water heater, propane included, and for any heater being moved; an electric one swapped for a similar unit in the same spot counts as an ordinary repair. Trade permits go out over the counter the day the application comes in. Source.
Prince William County
Prince William County requires a permit to replace a gas or propane furnace or a gas appliance such as a water heater, even like for like. Replacing an electric water heater with one the same size in the same spot needs no permit. Source.
How to pick the best furnace replacement company in Broad Run.
Questions to ask anybody who quotes you, us included.
Did they size the furnace to the house or copy the old one?
Fauquier County sizes heating systems to a 17 degree design night, and a furnace that matched a house in 1979 may not match it after new windows or added insulation. Ask whether the tech measured the house, not just the old nameplate, and whether the quote includes the propane connection and the vent.
Did they size it to your house?
Ask how they picked the size. Copying the old nameplate repeats whatever was guessed when the house was built.
Did they check the air conditioner you’re keeping?
A new furnace has to work with the coil and the outdoor unit already there. Ask whether they looked at both before quoting a furnace on its own.
Will they tell you if it’s worth fixing?
A good company puts the repair price next to the replacement range and lets you choose. Already holding somebody’s big number? Take the free second opinion first.
What our customers say.
Aaron, Kaiden, Oscar, Derek and Felix did a great job installing an HVAC unit and cleaning out the ducts and dryer vents, which were very difficult to access! They were all very professional!
5.0 stars across 884 Google reviews. Read them on our reviews page.
Furnace replacement questions from Broad Run.
About one owner in seven here heats with oil. What are your choices if that’s your house?
No. We don’t install or service oil burners. What we price is the switch away from oil: a propane furnace, which brings in a tank from a supplier, or a heat pump. The estimator quiz gives the range for either, and the heating page lays out the choices.
Should I call my propane company before a furnace swap?
It helps. The supplier usually owns and fills the tank and looks after the line up to the house, and a bigger furnace or a longer run from the tank can ask more of that line. We connect and test from the house side.
How much does a new furnace cost in Broad Run?
$4,285 to $14,040 installed for a gas furnace on its own, keeping the air conditioner you have; size and efficiency set where yours lands. A furnace and air conditioner together run $8,898 to $23,000. The HVAC replacement cost estimator gives your house its own number.
Should I repair it or replace it?
Fix the small parts on almost any furnace. Past fifteen years, with a repair over a third of the price of a new one, replacing usually wins. Not sure which you’re looking at? The diagnostic visit is $99, and the tech prices the repair before starting it.
Furnace replacement in the towns next door.
- Furnace replacement in The Plains
- Furnace replacement in Haymarket
- Furnace replacement in Gainesville
- Furnace replacement in Marshall
- Furnace replacement in Warrenton
More from SwiftPro in Broad Run
- AC repair in Broad Run
- AC tune-up in Broad Run
- Air duct cleaning in Broad Run
- Dryer vent cleaning in Broad Run
- Ductless mini splits in Broad Run
- Furnace and AC replacement in Broad Run
- Furnace repair in Broad Run
- Furnace tune-up in Broad Run
- Heat pump replacement in Broad Run
- Plumbing in Broad Run
- Sewer camera inspection in Broad Run
- Sump pump replacement in Broad Run
- Water heater flush in Broad Run
- Water heaters in Broad Run
The range first, then your number.
Call, or book online and pick a window. A tech measures the house and puts the installed price in writing before anything is ordered, and if the old furnace is worth fixing, you’ll hear that first.
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Broad Run 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.