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Emergency Furnace Repair in San Marcos, TX

While the winters in San Marcos don’t get too tumultuous, it would still be a serious issue if your furnace went out on you unexpectedly. A broken furnace can affect your quality of life and even the safety of you and your loved ones inside of your home. If you’ve found yourself in need of emergency furnace repair services, don’t worry. SM Air has the experience and professionalism you need to help get your furnace back in working order. We even offer 24/7 emergency services, meaning we’ll be at your home at any time of day, any day of the week when you need us.


Don’t deal with a broken furnace for a moment longer. Call (512) 212-4777 now for emergency furnace repair in San Marcos!

Signs You’re in Need of Emergency Furnace Repair in San Marcos

While your furnace might have gone kaput on you out of the blue, there are a couple signs that show your system is about to go kaput. Keep your eyes peeled for these clues of sudden furnace system failure:

  • Poor airflow around the house
  • Hot or cold spots around the house
  • A short cycling system
  • Increasing energy bills
  • A heating system that is 10 to 15 years old
  • Strange smells or noises coming from your house
  • A leaking heating system

If you’ve noticed any or multiple of these signs, it may mean you’re in need of emergency furnace heating repair in the San Marcos area. Call (512) 212-4777 right away!

When Home Furnace Repair Is an Emergency

Any furnace problem is serious. But some furnace repairs can be scheduled for later; some absolutely can’t wait. If your furnace problem poses a threat to life or property, it’s an emergency.

Emergency repairs include:

  • Cold air/furnace stops – If your heating system is blowing cold air or shuts down completely, it’s an emergency. Especially if the temperatures are below zero. Infants, elderly, and chronically ill loved ones need consistent air comfort indoors.
  • Electrical issues – Buzzing, humming, breaker tripping, flickering lights … all indicate a serious problem that can be dangerous.
  • Gas odors – Shut off your main and call 512-212-4777 immediately.
  • Leaks – Furnace/boiler leaks can cause a lot of damage quickly.
  • Noises – Something is damaging your system, and the longer it goes on, the worse the damage will be.

Over 30 years, SM Air has provided reliable, honest emergency furnace repair to our friends and neighbors in Comal and Hays counties (like you). There’s no reason you and your loved ones should be uncomfortable indoors. Call 512-212-4777 or contact us when you have questions about heating and cooling for your home.

Choose SM Air for Your Emergency Heating Repair Needs

We get it. Emergency system breakages can be scary, and even unhealthy for some! You need help and you need it fast. This is where SM Air comes in. We provide around-the-clock emergency furnace repair services, so your home will get back to feeling cozy and comfortable as quickly as possible. We stand by our work as professional HVAC technicians and guarantee we will provide you with the greatest service we can. Choose SM Air now for your emergency furnace repair needs.

Call (512) 212-4777 now for emergency furnace repair in your San Marcos home.


Some of the frequently asked questions we receive include:

What is the smell coming from my furnace?

The first time you turn the furnace on for the winter, it may emit a smell. Some are normal; some indicate that you need service sooner rather than later; and some mean you should call SM Air ASAP.

  • Burning plastic – Something may be overheating. Shut off the furnace and call for service.
  • Burnt toast – Dust has settled on parts of the furnace; once it heats up, the smell will go away.
  • Metallic – Check the floor registers to see if something has been spilled inside them.
  • Musty – This could be mildew in your ductwork or on your filter. Change your furnace filter and schedule a duct cleaning. You don’t want to compromise IAQ (indoor air quality) for good health.

Why is my furnace making noise?

Some furnace noise you might hear include:

  • Clanging – The blower motor belt might be slipping. Not an emergency if you shut off the furnace immediately.
  • Clicking – This can be an emergency. A cracked heat exchanger can let carbon monoxide leak into your air. Shut off the gas and the furnace.
  • Duct pinging/popping – This is normal; it happens the first time air pressure is released in your ductwork.
  • Rumbling/booming – This could be dirt building in the burner. It’s not an emergency if you shut down immediately.
  • Squealing/grinding – Motor bearings might be wearing out, so shut down before they overheat/burn out.
  • Startup click/chirping – One click/chirp at startup is not unusual. Repeated clicking indicates a serious problem.