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Furnace Repair

Shafer Services Plus  /  Furnace Repair
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  • Mon - Fri: 7am - 6pm
    Sat - Sun: 8am - 5pm
  • Dispatching from San Antonio, TX

Furnace Repair Services

Dependable Heating Repairs to Keep Your Home Warm and Safe.

When cold weather hits, the last thing you need is a broken furnace. At Shafer Services Plus, we provide fast, professional furnace repair that restores comfort and reliability to your home. Our skilled technicians handle every type of heating repair with care and precision, making sure your system runs safely and efficiently when you need it most.

  • Fast, Reliable Service: We respond quickly to your call and work efficiently to get your furnace back up and running.
  • Skilled Technicians: Our certified experts repair all major furnace brands and models with a focus on long-lasting results.
  • Safety First: We check for gas leaks, ventilation issues, and other safety concerns during every furnace repair visit.
  • Honest Recommendations: You’ll always get clear explanations and upfront pricing with no hidden costs or unnecessary upsells
  • Trusted Local Care: Backed by decades of experience, we take pride in doing the right thing and treating your home like our own.

If your furnace isn’t heating properly or making unusual noises, don’t wait. Contact Shafer Services Plus today for trusted furnace repair in San Antonio and dependable warmth all winter long.

What Are Some Common Signs It's Time to Repair a Furnace?

Recognizing when your furnace may need repair is key to avoiding a complete breakdown. Here are some common signs that your furnace could be in need of a service or repair:

  • Unusual Noises: Banging, whistling, or groaning sounds from your furnace can indicate mechanical problems, airflow blockages, or issues with the blower motor.
  • Inconsistent Heating: If some rooms are too cold while others are too hot, or if the furnace struggles to maintain the set temperature, there could be an issue with the furnace itself or the thermostat.
furnace repair san antonio, tx
  • Increased Heating Bills: An unexpected rise in heating costs can signal that your furnace is no longer operating efficiently and may need repairs.
  • Frequent Cycling: If the furnace turns on and off more frequently than it should, this could be a sign of a faulty thermostat, improper air circulation, or a clogged filter.
  • Yellow Pilot Light: For gas furnaces, a pilot light that is yellow instead of blue can indicate the presence of carbon monoxide, which is a serious issue that should be addressed immediately.
  • Difficulty Starting the Unit: If the furnace struggles to start up or doesn't start at all, there could be a problem with the ignition system or the pilot light.
  • Poor Air Quality: An increase in dust, dirt, or even signs of rust in the air or around the vent registers can suggest that the furnace filters need replacement or that the furnace itself requires maintenance.
  • Age of the Furnace: Furnaces typically last between 15-20 years. If your furnace is old and experiencing issues, it might be time for repairs or possibly a replacement.
  • Carbon Monoxide Detector Activation: If your carbon monoxide detector goes off, it's a clear sign that your furnace could be leaking this dangerous gas and needs to be serviced immediately.

If you notice any of these warning signs, it’s advisable to contact a professional HVAC technician to inspect your furnace and carry out any necessary repairs.

Common Furnace Repair Questions

Common furnace problems include a malfunctioning thermostat, issues with the pilot light or ignition system, worn-out bearings or belts, dirty filters leading to poor airflow, and cracks in the heat exchanger that can lead to carbon monoxide leaks.

It’s recommended to service your furnace annually to ensure it’s running safely and efficiently. Ideally, this should be done in early fall before the heating season begins.

The cost for a furnace tune-up varies by region and service provider but typically ranges from $80 to $200. This service usually includes inspecting and cleaning the furnace, checking for leaks and wear, testing its efficiency, and ensuring that it’s in good working order for the season ahead.

A furnace problem is considered an emergency if it poses a safety risk or significantly affects your comfort during extreme weather. Indicators of an emergency include strange smells like burning or gas, which could signal a fire hazard or gas leak; any signs of carbon monoxide presence, such as a headache, dizziness, or a CO detector alarm; unusual loud noises that could precede a breakdown; or complete loss of heating when the outdoor temperature is very low. If you encounter any of these issues, turn off your furnace and contact a professional immediately.

Delaying furnace repairs can lead to more serious and costly issues down the line. Small problems can quickly escalate into major malfunctions, potentially requiring a full system replacement. There’s also the risk of increased energy bills due to decreased efficiency, and most critically, there’s a safety risk — a malfunctioning furnace can lead to dangerous situations like gas leaks or carbon monoxide poisoning. It’s always best to address furnace repairs as soon as issues are noticed to ensure safety and optimal operation.

$100 OFF Any Furnace Repair

  • Offer cannot be combined with other offers.
  • Expires 4/1/2025

$60 A/C Repair Diagnostic for Central & Ductless Systems

What you get from Shafer Services Plus:
  • We’ll come to your home.
  • Analyze your new A/C installation needs.
  • Present you with personalized equipment options.
  • Financing options available!
  • 100% satisfaction guaranteed.
  • Diagnostic fee WAIVED for Advantage Plan Members.

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Name*
By submitting, you authorize Shafer Services Plus to reach out via phone, email, or text for explicit information about project needs. We will never share your personal information with 3rd parties for marketing purposes or spam you. You can opt out at any time. Message/data rates apply. Consent is not a condition of purchase.