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5 Best Furnace Repair Services San Marcos, TX

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Written By Callie Marsalisi|Last Updated: February 05, 2024

Having a local expert you can trust is important for keeping your heating and cooling services running smoothly. Whether it's a furnace emergency or just regular maintenance, your local professionals are here to help. Below, find our discussion of common furnace problems, as well as our guide to the top heating, ventilation, and air conditioning (HVAC) servicers in San Marcos, Texas. We also have our picks for top furnace brands if you find that you need a full system replacement.

5 Best Furnace Repair Companies in San Marcos

AirOne Logo


Based on 262 customer reviews.

Services Offered

DuctlessEmergency ServicesDuct CleaningBoiler InstallationIndoor Air QualityAc RepairAc InstallationFurnace InstallationFurnace RepairInspectionBoiler RepairFiltrationMaintenance


  • Informative resources
  • Free quote
  • Clear pricing policy
4105 Hunter Rd Bldg 8 Ste 11, San Marcos, TX 512-392-0022 myairone.com
Air Comfort Systems Logo

Air Comfort Systems

Based on 90 customer reviews.

Services Offered

FiltrationMaintenanceFurnace RepairDuctlessAc InstallationFurnace InstallationEmergency ServicesInspectionBoiler InstallationAc RepairIndoor Air Quality


  • Free quote
  • Reliable customer support
  • Clear pricing policy
233 Town Lk Bnd, Kyle, TX 512-909-1235 aircomfortaustin.com
Blue Ribbon Cooling, Heating, Plumbing, & Electrical Logo

Blue Ribbon Cooling, Heating, Plumbing, & Electrical

Based on 162 customer reviews.

Services Offered

Duct CleaningAc RepairFurnace InstallationIndoor Air QualityDuctlessFurnace RepairVentilationInspectionFiltrationMaintenanceAc Installation


  • Prompt service delivery
  • Reliable customer support
  • Informative resources
290 Wonder World Dr, San Marcos, TX 760-280-5590 blueribbonservices.com
Thayer Air Conditioning Logo

Thayer Air Conditioning

Based on 408 customer reviews.

Services Offered

Furnace InstallationAc InstallationSmart Home IntegrationVentilationIndoor Air QualityDuctlessAc RepairMaintenanceFurnace Repair


  • Free quote
  • Clear pricing policy
  • Informative resources
132 Caddell Ln, New Braunfels, TX 830-500-3311 thayerac.com

More Local Hvac Companies

Classic Services Air Conditioning & Heating

User Reviews: 4.9/5 

1893 State Highway 46 South
New Braunfels, TX 78130

Summit Air Conditioning & Heating, LLC

User Reviews: 4.7/5 

1955 FM2001 #200
Buda, TX 78610

Del's Heating & Air Conditioning

User Reviews: 4.9/5 

966 Ranch to Market Rd 967
Buda, TX 78610

Legacy Home Services

User Reviews: 5/5 

2001 Wald Rd
New Braunfels, TX 78132

Lonestar Air Services

User Reviews: 4.7/5 

144 Bobwhite Trail
Seguin, TX 78155

Frosty Mist Air Conditioning & Heating, LLC

User Reviews: 4.7/5 

4615 Borage Dr
Austin, TX 78744

Alamo Austin Air

User Reviews: 5/5 

8819 Jim Davis Pl
Austin, TX 78736

Ideal Aircare

User Reviews: 4.7/5 

5305 Fort Clark Dr
Austin, TX 78745

TemperaturePro Austin

User Reviews: 4.6/5 

14707 Fitzhugh Rd
Austin, TX 78737

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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Facts about San Marcos
Average Min Temp Percentile:95.4%
January Average Min Temp:43.0°F
Climate Zone:Hot-Humid
Average Energy Cost:$0.1/kWh
Median Year Houses Built:1991
Average Annual Snowfall:0.1"

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Services Offered by Furnace Repair Companies

Furnace repair companies provide various to keep your furnace working at maximum efficiency. We outline some common offerings below.

Repair and Maintenance

Timely repairs extend the furnace's life span and optimize its energy efficiency, on top of restoring furnace function. Furnace repair companies can diagnose and fix a number of common furnace issues. These include malfunctioning thermostats, clogged air filters, or broken blower motors. Qualified HVAC technicians can also handle problems such as damaged heat exchangers, malfunctioning thermostats, possible gas leaks, and faulty ignitions. Furnace repair experts can also handle routine HVAC maintenance to avoid unnecessary breakdowns. This can include inspecting and cleaning your furnace, lubricating moving parts, replacing air filters, and ensuring that all components work correctly.


HVAC companies can also install a new furnace if your furnace is beyond repair, or you want to upgrade to a more energy-efficient model, such as a heat pump. First, skilled technicians assess your heating needs and home’s layout. Then, they recommend a suitable furnace model based on your requirements and budget. Your HVAC technician can integrate your new system with existing thermostats and air ducts. They're trained to follow industry standards and safety protocols to ensure proper furnace replacement and connection. To be sure everything is running optimally, your technician will perform a final inspection following installation.


If you find that your furnace isn’t turning on, your furnace repair company will likely recommend a thorough inspection to identify possible problems. This will involve a technician examining each component of your furnace. Inspections usually include inspecting the burner and ignition system, cleaning and replacing air filters, checking for any gas or fuel leaks, examining the heat exchanger for cracks or damage, and testing the thermostat's accuracy. Your technician will verify the heating system's safety and efficiency, making necessary repairs or adjustments. Routine, annual furnace tune-ups encourage peak performance, help prevent possible breakdowns, and promote safe living during colder months.

Emergency Services

Some furnace repair companies offer emergency services. These services are available 24/7 for unexpected malfunctions, breakdowns, or other safety concerns. If your furnace breaks down during a cold night, emergency services can have it up and running again as soon as possible. Emergency services cost more than a scheduled service, but protecting your health is worth it. Furnace failure can cause discomfort and serious health risks from decreased indoor air quality, especially if it breaks down during extreme weather conditions when it's not possible to open windows for fresh air.

Factors To Consider When Choosing a Local San Marcos Furnace Repair Service

You should consider a number of factors when selecting a local San Marcos furnace repair company. We’ve detailed them below.

  • Cost: Look for a company that provides all the services you need, and that offers transparent and competitive pricing. We recommend comparing multiple San Marcos furnace repair companies. Avoid ones with extremely low rates, as they may employ low-quality workmanship or subpar replacement parts.
  • Guarantees: Ask your furnace repair company about the warranties or guarantees it offers. Trustworthy service providers offer these guarantees to protect customers if any issues arise post-repair. Guarantees may cover both workmanship and parts.
  • Licensing: You want to use a furnace repair provider that holds all the necessary licenses and certifications. HVAC contractors in Texas must obtain a contractor's license from the Texas Department of Licensing & Regulation. Proper licensing ensures that technicians are qualified to handle furnace repairs safely.
  • Qualifications: Check a furnace repair company's qualifications and experience. Ideally, technicians should be well-trained and have expertise in various furnace makes and models. You can ask about ongoing training programs to ensure a provider keeps up with current repair techniques.
  • Reputation and reviews: Customer testimonials and other online reviews can give you an idea of a company's reputation and commitment to customer satisfaction. Choose a company with overall positive reviews and experiences, and pay attention to the way it addresses negative feedback or complaints.

How Much Does a Furnace Repair Cost?

The total cost of furnace repair will vary depending on factors including the type of HVAC unit you have, the extent of the damage, and the cost of replacement parts. Your final price may vary, but on average expect to spend around $426 on furnace repair. Below, find a list of common repairs and their costs.

  • Broken thermostat: $79–$396
  • Cleaning: $47–$63
  • Cracked heat exchanger: $1,582–$2,769
  • Damaged blower bearings: $24–$119
  • Damaged blower belt: $24–$87
  • Filter change: $32–$119

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Frequently Asked Questions About Furnace Repair in San Marcos

How often do I need to have my furnace serviced?

Have your furnace serviced once a year (or more frequently if needed) to ensure it runs safely and efficiently. One simple maintenance step any homeowner can take is changing the furnace filter annually.

Will a home warranty cover a furnace?

Home warranties typically cover furnaces, but the specifics will vary depending on your provider. Read our guide to best home warranties for furnace coverage to learn more.

How can I tell whether my furnace needs repairs?

Signs that your furnace needs repairs include strange noises, uneven heating, increased energy bills, and a yellow pilot light. A professional furnace inspection can help determine whether it’s time for a full furnace replacement.

What should I do if my furnace breaks down in the middle of winter?

You might require emergency repair services if your furnace malfunctions in the middle of winter. Many HVAC repair providers offer 24/7 emergency services to get your furnace up and running again.

How can I prevent the need for furnace repairs?

You can prevent the need for furnace repairs by completing regular maintenance like cleaning and replacing air filters. Annual inspections and service by your local HVAC professional also helps catch furnace problems before they escalate.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.