Furnace and heating repair in Catharpin.
Furnace and heat pump repair in Catharpin, ZIP 20143, on propane, gas or electric heat, priced before any panel opens.
The diagnostic visit is $99, and a flame sensor cleaned is $95 to $180 from our published price book.
- Prices in writing, first
- Furnaces, heat pumps and boilers
- Dedicated HVAC team
Get your heating repair priced
Propane, heat pumps and a long January: furnace repair in Catharpin.
ZIP 20143 heats three main ways. By the Census, 46% of owner homes use electricity, 34% propane and 7% natural gas, with oil at 8%. Repairs on a propane furnace run the same list as natural gas, flame sensor, igniter and circuit board, with the gas valve and burner orifices set for propane instead. Mention propane at booking, and the tech comes ready to read its line pressure.
About one owner home in twelve here heats with oil. We don’t work on oil burners, so if that’s your system, say so when you call. If the burner is failing, a heat pump or a propane furnace is the switch we can price.
Dulles logs 101.7 days a year with lows at or below freezing and 4.9 days at 10 degrees or colder. The late January 2026 Arctic outbreak brought Extreme Cold Warnings on January 27, 30 and 31, with wind chills as low as 10 below zero. A furnace that limped through October runs flat out in that stretch, and an igniter that was marginal quits. An igniter replaced is $240 to $410.
A snowstorm like January 5 and 6, 2025, with gusts to 45 mph and blowing snow, can drift over the side-wall pipes that carry a high-efficiency furnace’s exhaust and intake air. When a furnace starts, runs briefly and locks out after a storm, clear snow from those pipes first, then call. Our diagnostic visit is $99.
What furnace repair costs in Catharpin.
The same price book as the rest of our site. The diagnostic visit is $99, and the tech prices the repair before starting it.
- Flame sensor cleaned$95 to $180
- Igniter or flame sensor replaced$240 to $410
- Blower wheel pulled and cleaned$300 to $440
- Thermostat replaced$300 to $640
- Control board$550 to $1,180
- Blower motor$670 to $2,400
- Repair diagnostic visit$99
Often same-day, and we will tell you honestly when we can get there.
With Comfort+ membership, $20 a month or $199 a year, the diagnostic visit is included, any service is 15% off, and a heating maintenance visit comes every fall.
What a failing furnace in Catharpin usually does.
The furnace starts, then shuts off before the house warms
On a cold Catharpin night, a furnace that lights, runs briefly and quits is often a dirty flame sensor, a weak igniter or a blocked exhaust. A snow-drifted pipe is a shovel job. The other two are repairs, and the tech will price the repair before starting it.
It smells the first time it runs
Dust burning off the heat exchanger smells for the first few minutes of the season, then stops. A gas smell is different: leave the house and call your gas company from outside.
It runs a few minutes, stops, starts again
Short cycling is usually a clogged filter, a thermostat in a bad spot, or a furnace too big for the house. The filter is the one to check yourself first.
What the county says about your heat in Catharpin.
Prince William County
Prince William County Fire and Rescue says to have a qualified technician inspect the heating system and chimneys every year, to make sure nothing blocks the fumes from venting out of the house. Source.
Prince William County Fire and Rescue lists furnaces and water heaters among the household sources of carbon monoxide, and says to put a CO alarm outside each sleeping area and on every level of the home and to test it monthly. Source.
How to pick the best furnace repair company in Catharpin.
Questions worth asking anybody who comes out, us included.
Do they ask what fuel you burn before they come?
In 20143 the answer could be electric, propane, oil or natural gas, roughly in that order of likelihood. A company that asks first brings the right parts and tells you early if the system is oil, which we don’t repair. Propane and natural gas furnaces share most repairs, but the gas settings differ.
Will they price the part before they fix it?
Flame sensors, igniters and control boards all have a going rate. A tech who can’t tell you the number before starting is asking you to find out afterwards.
Do they look at the venting, not just the flame?
Getting the burners lit is half a heating call. Ask whether they check the flue and test for carbon monoxide while the panel’s open.
Do they know when a repair isn’t worth it?
A big repair on a furnace past 15 or 20 years deserves a replacement price next to it. A good tech puts both numbers in front of you and lets you choose.
What our customers say.
The draft inducer motor on my furnace was failing. They were able to get out same day to look at it. Ordered parts and got a new one installed quickly. The technicians were on time, responsive, and well equipped. Fairly priced too. I have nothing but good things to say.
5.0 stars across 884 Google reviews. Read them on our reviews page.
Heating repair questions from Catharpin.
How often should a Catharpin furnace get checked?
Prince William County Fire and Rescue advises having a qualified technician inspect the heating system and chimneys yearly, so nothing blocks the fumes from venting out of the house. It also lists furnaces among household sources of carbon monoxide and suggests an alarm outside each sleeping area and on each level. The first fall freeze lands around October 24.
Do you repair heat pumps in houses with electric heat?
Yes. The same outdoor unit serves January and July. If the thermostat’s auxiliary heat light stays lit through a stretch of mild weather, the strip heat inside is carrying the load, and the cause is usually outside: a sticking defrost control, an iced coil or a tired compressor. The diagnostic visit finds which, and the repair is priced before the work starts.
How much does furnace repair cost in Catharpin?
The diagnostic visit is $99. A flame sensor cleaned is $95 to $180; an igniter or flame sensor replaced, $240 to $410; a control board, $550 to $1,180; a blower motor, $670 to $2,400.
Should I repair it or replace it?
Fix the small parts on almost anything. Before a big repair on an old furnace, look at the replacement number: a furnace alone, keeping the air conditioner you have, runs $4,285 to $14,040 installed, and the HVAC estimator gives your number in about a minute.
Furnace repair in the towns next door.
- Furnace repair in Gainesville
- Furnace repair in Haymarket
- Furnace repair in Centreville
- Furnace repair in Chantilly
- Furnace repair in Bristow
More from SwiftPro in Catharpin
- AC repair in Catharpin
- AC tune-up in Catharpin
- Air duct cleaning in Catharpin
- Dryer vent cleaning in Catharpin
- Ductless mini splits in Catharpin
- Furnace and AC replacement in Catharpin
- Furnace replacement in Catharpin
- Furnace tune-up in Catharpin
- Heat pump replacement in Catharpin
- Plumbing in Catharpin
- Sewer camera inspection in Catharpin
- Sump pump replacement in Catharpin
- Water heater flush in Catharpin
- Water heaters in Catharpin
Tell us what your heat is doing.
Call, or book online and pick a window. The tech prices the repair from the book before starting, and if the furnace is at the end of its life 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 Catharpin 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.