Furnace Repair in Warrenton, VA

Local heating repair from a Warrenton-based team

When your furnace stops working, you want a local team that can get there and fix it right. Service First Heating & Air is based in Warrenton, and we repair gas, oil and propane furnaces all over town. Same-day service is often available, and you will know the price before any work begins.

✔ Licensed & Insured HVAC Professionals
✔ Same-Day Service Often Available
✔ Upfront, Transparent Pricing
✔ Local Team Serving Warrenton

📞 Call Now (540) 690-4280 to Schedule Service

Home › Service Areas › Warrenton Area › Furnace Repair

Warrenton Homeowners Call Us First for Furnace Trouble

A furnace rarely fails on a mild afternoon. It usually gives out on the first hard freeze or in the middle of a long cold stretch. Because our shop is right here in Warrenton, we are close by when that happens, whether you live near Old Town or out on the edges of town.

Our licensed and insured technicians work on every kind of furnace we see in Fauquier County’s county seat: older gas units, newer high-efficiency models, and the oil and propane systems found in many older and rural homes. We find the actual cause, explain it in plain language, and give you a clear price first. Learn more about our full range of heating services.

Fully Insured

Your safety and comfort come first. Our team is fully insured and trained to handle all AC services with precision.

Quality Materials

We use only trusted brands like Rheem to ensure long-lasting performance and energy efficiency.

Reasonable Price

From 10% discounts for veterans and seniors to flexible financing plans, we make cool comfort affordable.

Quality Maintenance

Seasonal tune-ups and regular maintenance keep your system efficient, reliable, and ready for summer.

Furnace Problems We Fix Most Often

Most no-heat calls in Warrenton trace back to a short list of parts. These are the ones we replace or repair most:

Failed hot surface ignitor. The ignitor cracks with age, so the burners never light and the furnace locks out.
Tripped limit switch. When the furnace overheats, often from a clogged filter, this safety switch shuts the burners off.
Cracked heat exchanger. Common in older furnaces, it can let carbon monoxide escape and is a serious safety concern.
Thermostat faults. Dead batteries, loose wires or a bad setting can look like a broken furnace.
Oil burner issues. Clogged nozzles and filters can stop an oil furnace from firing cleanly.

Old Town Homes, New Subdivisions and Everything Between

Warrenton’s housing covers a lot of ground. Historic Old Town has many older homes, and newer subdivisions sit on the outskirts. Around town, you will find heat pumps, gas furnaces, and oil or propane systems in older and rural properties. That variety is why we carry parts for many kinds of equipment.

Older homes often have furnaces that have been running for a long time, sometimes tied into ductwork that was added years after the house was built. Those systems are more likely to have worn ignitors, tired blower motors and heat exchangers that need a close look. Newer homes tend to have high-efficiency furnaces with more sensors and electronic controls. Add in Virginia’s cold winter nights and big temperature swings in fall and spring, and every furnace in town gets a real workout.

What Happens When We Arrive

Here is how a typical furnace repair visit goes at a Warrenton home:

We listen first. You tell us what the furnace is doing, any sounds or smells, and when it started.
We check the basics. Thermostat, filter, power, gas or fuel supply, and error codes on the control board.
We test the components. Ignitor, flame sensor, limit switch, blower and burners are checked one by one.
We inspect for safety. We look at the heat exchanger and venting and test for carbon monoxide.
You approve the price. We explain the fix and the cost before we start.
We finish and verify. The furnace runs a full heating cycle before we leave.

Should You Repair or Replace Your Furnace?

Most furnace problems are worth repairing. A new ignitor or limit switch can put a furnace back to work for many more winters. We will always tell you when a repair makes sense.

Replacement becomes worth a look when your furnace is old and needs a major part, when repairs keep stacking up season after season, or when the heat exchanger is cracked. In older Warrenton homes, it can also be a chance to consider a heat pump or a dual-fuel setup. We install trusted brands such as Rheem, and flexible financing can help spread out the cost. We give you honest options and let you decide.

Why Choose Service First in Warrenton

Warrenton is where we live and work, so we treat your home the way we would want ours treated.

Licensed and insured technicians who work on gas, oil and propane furnaces.
Upfront, transparent pricing before any repair begins.
Same-day service is often available.
Veterans and seniors save 10% on service.
A team that local homeowners rate highly on Google.

What Our Customers Say on Google

         Posted on Google  
   
   Christopher McCrae 
 
 
 
 Trustindex verifies that the original source of the review is Google. Awesome !!
  
 
      Posted on Google  
   
   ahushoura 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent locally owned business. They replaced our AC system two years ago and they regularly service it. Great prices and service are what make them the best. I highly recommend them!
  
 
      Posted on Google  
   
   Sheryl Childs 
 
 
 
 Trustindex verifies that the original source of the review is Google. Seth Phillips Senior HVAC technician gave exceptional service, was prompt, efficient, knowledgeable and extremely helpful! I look forward to doing business with this company!
  
 
      Posted on Google  
   
   Joshua Wehrle 
 
 
 
 Trustindex verifies that the original source of the review is Google. Another incredible experience with the best professionals you could ask for - timely - professional - courteous. If you need heating, cooling, anything - you need to call these guys. Awesome job!
  
 
      Posted on Google  
   
   Brittney Brennan 
 
 
 
 Trustindex verifies that the original source of the review is Google. I met Seth a few years ago when I had another company install a new AC unit improperly. He fixed it and ended up installing a new secondary unit for me a short time later. Ever since then I’ve been a faithful customer and go to Seth for all of our HVAC needs and concerns. I am so thankful to have found a solid company after having countless companies take my money and give me the run around. I cannot recommend Seth or this company enough!! They will take the absolute BEST care of you!!
  
 
      Posted on Google  
   
   Chris Dix 
 
 
 
 Trustindex verifies that the original source of the review is Google. My heat pump broke in the middle of winter. I called several companies before this one and they all couldn't get to me for a whole month! I called this company and they were able to send someone to take a look at the heat pump the same day. This offered me a lot of relief as I wanted to resolve the broken heat pump as soon as possible so that I didn't have to wear a coat inside my own house or worry about frozen pipes. The technicians were all very respectful of my property and cordial. I ended up getting a new heat pump because we would have had to replace most of the parts of the old one. The price for the new heat pump was fair. Would definitely recommend giving these guys a shot.
  
 
      Posted on Google  
   
   Ellen Nosal 
 
 
 
 Trustindex verifies that the original source of the review is Google. Best people ever!
  
 
      Posted on Google  
   
   Bryan Hunsaker 
 
 
 
 Trustindex verifies that the original source of the review is Google. Professional friendly service. They do a great job! They fix systems not just change units like the other guys!
  
 
      Posted on Google  
   
   Michael Hooks 
 
 
 
 Trustindex verifies that the original source of the review is Google. Always outstanding communication, timeliness, prices and service. I would highly recommend this company.
  
 
  
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Get Your Warrenton Furnace Running Again

No heat, weak heat or strange noises? Call (540) 690-4280 to reach our Warrenton team, or request service online. You can also see everything we do on our Warrenton service area page.

Warrenton Furnace Repair FAQs

Why does my furnace turn on and then shut off after a few minutes?

This is called short cycling. In many Warrenton homes, the cause is a clogged filter that makes the furnace overheat and trip its limit switch. A dirty flame sensor, an oversized furnace or a thermostat in a bad spot can also do it. Short cycling wastes energy and wears out parts, so it is worth having checked.

Can you repair older furnaces in Old Town Warrenton homes?

Yes. Many older homes in and around Old Town still run furnaces that have been in place for a long time. We can usually find parts and get them running. We also take extra care to inspect the heat exchanger and venting on older units, since those are the areas most likely to wear out with age.

Is a cracked heat exchanger dangerous?

It can be. A cracked heat exchanger may let carbon monoxide mix with the air in your home. If we find a crack, we will show you and explain your options. Every home with a gas, oil or propane furnace should have working carbon monoxide detectors, and you should call right away if one goes off.

Do you fix oil and propane furnaces in Warrenton?

We do. Oil and propane systems are still common in many older and rural homes around Warrenton. We repair burners, nozzles, fuel filters, ignition parts and controls on these furnaces. If you are thinking about moving away from oil, we can also talk through heat pump and dual-fuel options for your home.

How soon can someone come out to fix my furnace?

Same-day service is often available, especially since our team is based in Warrenton. Timing depends on the day and how busy the season is. Call us at (540) 690-4280, tell us what your furnace is doing, and we will get you the soonest opening we have.