Local San Marcos Heating & Air Conditioning Repair Services

Providing exemplary heating and cooling maintenance, repair, and HVAC replacements in the San Marcos area, Garner Heating & Air Conditioning is proud to be the local go-to company committed to keeping Texas homes comfortable, no matter what’s going on outside. For three decades, our certified technicians have been going above and beyond to make sure our residential and commercial customers are satisfied.

Central Texas weather can be brutal- but you shouldn’t have to know it from the inside of your home or office. Garner Heating & Air Conditioning is happy to extend our thirty years of expertise to our customers in San Marcos. Whether you are looking to maintain, repair or replace your AC or heating system, contact us for an estimate today.

AC Replacement San Marcos, TX

Heating and air conditioning replacement is an unavoidable eventuality, even with excellent maintenance. Once it becomes clear that your heater and AC needs to be replaced, our technicians will evaluate your space and your needs to design a superior system that will provide you with the comfort you deserve. Everything from duct work, vents, and airflow will be considered and optimized, to help save you money in energy costs and ensure the efficiency and longevity of your new system.

Here are the top considerations when choosing a heating and cooling company:

  1. They offer the best solutions for your problem. No matter what problem you are having with your air conditioning system they need to have the best and most efficient solution. They should first listen to your needs and explain how they are going to fix it. 
  2. Expertise and Trust: your HVAC system is probably one of the most costly items in your home and you don’t buy one every day. See what your San Marcos neighbors are saying about our 5 Star Services over the last 3 decades. 
  3. Free Estimates – they should offer a free estimate on the services that they will be performing. At a minimum, if they do charge a fee to come out, it should be included in the service if you decide to hire them. 
  4. Licensing – they need to be a licensed professional. The vast majority of HVAC pros are licensed but just check and make sure before hiring them. 
  5. How involved are they in your local community? We’re glad for the opportunity to give back to Hays County for 3 decades. Check out our yearly Gift of Heat community service.  

Give Garner Air Conditioning the opportunity to prove to you and your family that we can help fast and save you money in return. Call or text 512-392-2000 or schedule service online.

The average cost to repair an air conditioner in the San Marcos area is around $300. This takes into account every type of repair you could have on your AC system. 

Here is the typical average HVAC repair costs per service*:

  • Thermostat: $150
  • Replace capacitor or contactor: $200
  • Replace fan/blower motor: $250
  • Replace control board: $300
  • Replace evaporator coil: $500
  • Replace compressor: $1000 

*Costs and prices shown above are intended to be used as general information, not as guaranteed estimates. 

Contact Garner Air Conditioning online for a free in-home estimate on all your AC repair costs, call or text 512-392-2000 to schedule service.

The average cost to replace or install a central air system in the San Marcos area is around $10,000. On the low end it’s around $6,000 and could be upwards of $15,000 depending on your specific needs. 

What factors affect the cost of a new HVAC system:

  1. The size of your home or how much of your home you want to keep cool or heated at any given time. 
  2. How efficient your new system will be or SEER Rating. 
  3. Do you want or need upgrades in your thermostat, indoor air quality or ductwork?
  4. Warranty selection – most warranties come with limited and extended parts warranty. 
  5. Who you choose. You can negotiate with your HVAC contactor because not all charge the same price. Some offer coupons, specials and financing. Keep in mind that you want it done right the first time and ASAP especially if you home is hot or cold.  

Call or text Garner AC at 512-392-2000 and we’ll help determine the solution that best fits your home’s needs. Check out what your Hays County neighbors are saying about our services too.

It costs around $150-$350 to service your HVAC system in San Marcos, TX. Getting your HVAC system serviced twice a year is the best way to get the most out of your HVAC system. You should have your furnace serviced right before winter and your AC unit right before summer to prepare your HVAC system for the more taxing heating and cooling seasons. Give us a call today to get your HVAC system serviced.  

Your HVAC system may not be turning on in San Marcos, TX because: 

  • Your thermostat is not turned to the correct setting. 
  • Your air filters are dirty. 
  • The circuit breaker for your HVAC system has tripped. 

If your HVAC system is still not working after you check these problems, the issue may be more complex. In some cases, your HVAC system may not be working due to a refrigerant leak, which will require an HVAC technician to repair it. Call us today to get your HVAC system repaired.    

The following is included in AC maintenance in San Marcos, TX

  • A thorough cleaning of your AC unit. 
  • An inspection of your AC unit’s components. 
  • A replacement of your air filters. 

Having your AC unit maintenanced is a good way to ensure that your energy bills are lower and your AC unit runs more effectively. Additionally, it also allows you to spot any issues that may become bigger problems later on. To get your AC unit maintenanced, contact us today

See what your San Marcos neighbors are saying about our services below. 

Local Reviews
for San Marcos, TX

Garner Heating & Air Conditioning, Inc. Rated 5.0 out of 5 stars based on 47 customer reviews


Easy to deal with and trustworthy.




Review of Garner Heating & Air Conditioning, Inc.


Excellent service as always




Review of Garner Heating & Air Conditioning, Inc.


Great Service, Awesome price




Review of Garner Heating & Air Conditioning, Inc.

Always terrific, timely service from our favorite HVAC professional Max!


Good Service




Review of Garner Heating & Air Conditioning, Inc.

Max Bethke always does a good job and we appreciate his being direct and thorough.


Great service and assistance




Review of Garner Heating & Air Conditioning, Inc.

Garner heating and air helped us as soon as they could after the Polar Vortex of 2021. They helped us through the repair and replacement of our old system and even helped me work with my insurance company. All the works are great, helpful, and kind. Their office staff was great to work with also, always being polite and helpful. 5 Star in my opinion!!


Polar Vortex




Review of Garner Heating & Air Conditioning, Inc.

The company stayed in touch with use through the rolling blackouts and arrived as soon as they possible could and the power was on. The receptionist was great about working with us.


Knowledgeable, courteous, great service




Review of Garner Heating & Air Conditioning, Inc.

We have used Garner Heating and Air for 20 years. They put the original units in our home when it was built. They have always been responsive and prompt if we need service. Have known Max since he was a kid and seen him grow as a technician at Garner. He is always on time, courteous, and knows what he is doing. Max


Great Servicfe




Review of Garner Heating & Air Conditioning, Inc.

We are in our nighties andf depend on many service. Just want to say that we are cfompletely satisfied.


Great employees




Review of Garner Heating & Air Conditioning, Inc.


Easy to deal with and trustworthy.




Review of Garner Heating & Air Conditioning, Inc.


Ryan P.

Ryan P.

Performed AC cool check. Checked electrical, mechanical, safety, and performance of the system. Blower motor and evaporator coil were found to be dirty. Evaporator coil and blower motor housing was wiped down to facilitate performance check. Electrical disconnect confirmed in and on. Condenser coil clean. System set to 77° per request of the customer. Customer was presented options for cleaning of blower motor and heat transfer media but customer declined at this time. Please see attached checklist for full tune-up details.

Near Valero Dr, San Marcos, TX 78666
Max  B.

Max B.

After performing the diagnostic, I found that the voltage enhancement system was completely depleted and had failed. I also found that the contactor relay was in poor condition. I presented the customer with options, and they chose the basic repair on the voltage enhancement system. After performing the basic level repair everything is coming on and working at this time.

Near Blanco River Ranch Rd, San Marcos, TX 78666
Max  B.

Max B.

Performed the AC tune up and everything is working at this time. Please see attached checklist for full tune-up details.

Near Hilliard Rd, San Marcos, TX 78666
Max  B.

Max B.

After performing the diagnostic, I found that the voltage enhancement system to the compressor was completely depleted and had failed. I replaced it under the parts and labor warranty. I also checked the high-voltage connections and make sure they were tight. Everything is coming on and working at this time.

Near Summit Ridge, San Marcos, TX 78666
Ethan D.

Ethan D.

Performed duct cleaning with BrushBeast on entire home. Disinfected duct system and cleaned return chase.

Near Cazador Dr, San Marcos, TX 78666
Chase R.

Chase R.

Near Thousand Oaks Loop, San Marcos, TX 78666
Max  B.

Max B.

Performed the AC tune-up and everything is working at this time. Please see attached checklist for full tune-up details.

Near Oak Ridge Dr, San Marcos, TX 78666
Max  B.

Max B.

Performed the AC tune-up and everything is working at this time. Please see attached checklist for full tune-up details.

Near Deer Stand Loop, San Marcos, TX 78666
Max  B.

Max B.

Performed the AC tune-up and everything is in good working order at this time. Please see attached checklist for full tune-up details.

Near W San Antonio St, San Marcos, TX 78666
Max  B.

Max B.

Performed the AC tune-up and everything is in good working order at this time. Please see attached checklist for full tune-up details.

Near Blanco River Ranch Rd, San Marcos, TX 78666
George T.

George T.

1st trip – Performed diagnostic and found mini split blower wheel caked with dust and debris causing lowered cooling efficiencies and drainage issues. Outdoor condenser also building up debris and dust. Customer would like to have wheel head and condenser cleaned. Payment collected and we return next week to complete the repairs. Also, this mini split is on a two-zone head and we will address second head when we return. 2nd trip – While preforming cleaning I found traces of oil. I completed a leak check and found a leak in the coil. I discussed my findings with the customer presented options for head replacement. System has been cleaned and is operational. The replacement head is on backorder with Carrier but if customer moves forward with head replacement, a $200 credit will be issued on the work. We will send an estimate for the work, prior to the credit, to the customer.

Near Lazy Ln, San Marcos, TX 78666
Max  B.

Max B.

Performed the repairs on the water removal system that sits underneath the evaporator coil. We replaced the secondary drain pan and installed two safety float switches. Also replaced the voltage enhancement systems both inside the furnace to the blower motor and outside on the condenser. After performing these repairs everything is coming back on and working at this time.

Near Silo St, San Marcos, TX 78666
George T.

George T.

Performed cooling tune-up on 2 Lennox gas systems. On the upstairs system I found that the voltage enhancement system at outdoor unit was under tolerance. I presented repair options to the customer and they decided to move forward with the work. I replaced the voltage enhancement system to upstairs condenser and voltage performance systems were added to both condensers. Performance and safety tested was performed on both units after repairs completed and I also washed off the outdoor units.

Near Ancient Oak Way, San Marcos, TX 78666
Max  B.

Max B.

Performed the AC tune-up and everything is working at this time. While performing the inspection I did find that the condenser fan motor was running higher amps than what it is calling for. It was also a little bit warmer than normal. I let the customer that the system is still running and performing however these signs of a failure in the future. Please see attached checklist for full tune-up details.

Near E Mimosa Cir, San Marcos, TX 78666
Max  B.

Max B.

When I arrived, the customer informed me that he replaced the furnace control board and that it still was not coming on. I presented options for repairs, but he declined all options.

Near Chestnut St, San Marcos, TX 78666
Max  B.

Max B.

After performing the diagnostic, I found that the heat coils were severely damaged and needed to be replaced. I presented the customer with his options and they chose to go ahead and have it repaired. After performing the repair everything is coming on and working at this time.

Near Sycamore St, San Marcos, TX 78666
Max  B.

Max B.

After performing the diagnostic, I found a dead cat on the electric heat strips of the mobile home system. I informed the customer that he would have to have somebody remove it before we can even look at replacing it.

Near Sycamore St, San Marcos, TX 78666
Ethan D.

Ethan D.

Installed 3-ton Payne gas system in attic. Moved system location to left side after decking space. Cut back, then added on with flex duct runs. Installed new drain pan and plenums. Sealed all pressure points with mastic tape and air lock and rebuilt drain. Added SS-2 and SS-3 safety switches. Installed new line filter dryer and pressure tested system for extensive leak check. Pulled deep vacuum and charged to factory specs. Reused thermostat and sealed copper penetration in hallway chase. System benchmarked and operating at this time.

Near Oakdale Dr, San Marcos, TX 78666
Max  B.

Max B.

After performing the diagnostic, I found secondary drain pan to be rusted and have water in it. I also found the voltage enhancement system inside the condenser to be weak and undervalued as well as the voltage enhancement system for the blower motor. I presented the customer with his options and he would like us to call him and schedule a time to come out here to do the work.

Near Silo St, San Marcos, TX 78666
Max  B.

Max B.

After performing the diagnostic, I found that the primary drain line was completely blocked causing the safety float switch to trip and therefore cut off the system. I called the customer and presented him with his options, and he chose to have it repaired. After performing the basic level repair on the primary drain line everything is coming on and working at this time.

Near E Mimosa Cir, San Marcos, TX 78666

AC Repairs San Marcos, TX

When repairs to the HVAC system are needed, our N.A.T.E. certified technicians will quickly get your equipment back on track. Living without cold AC in the summer is not an option in Texas. Likewise, no one should be without heat in the winter- our team has years of experience trouble shooting and repairing air conditioners, heat pumps, and gas furnaces. All of our repairs come with a year long guarantee- we are committed to customer satisfaction.

AC Maintenance San Marcos, TX

Maintaining your heating and cooling components is incredibly important for the longevity of your system. Regular twice a year cleanings and tune ups will keep things running smoothly and save you time and money in the long run. A poorly running system will not only impede your ability to stay cool in the summer and warm in the winter; your energy costs will skyrocket as your system runs overtime to compensate.

Our A/C and heat experts will work diligently to thoroughly remove dirt and debris, which can quickly cause many of the common problems associated with poor performance and the shortened life span of your system. They will evaluate your equipment, catching potential problems before they become heating and air conditioning emergencies. Scheduling regular maintenance also has the added benefit of keeping the air quality in your residential or commercial property healthy.