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 $5,000. On the low end it’s around $2,500 and could be upwards of $9,000 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.

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

Local Reviews
for San Marcos, TX

Garner Heating & Air Conditioning, Inc. Rated 4.9 out of 5 stars based on 34 customer reviews


Reliable, professional, cost effective




Review of Garner Heating & Air Conditioning, Inc.

They do excellent work with attention to detail. They do what they say the will do and are on time.


Responsive, yes, but thorough?




Review of Garner Heating & Air Conditioning, Inc.

Expected at least a outside coil cleaning for the price I paid. Only replaced a part.


Fast, reliable, thorough.




Review of Garner Heating & Air Conditioning, Inc.

Fast, reliable, thorough.


Wonderful and Friendly Service




Review of Garner Heating & Air Conditioning, Inc.

Our A/C started blowing warm air last Saturday. We didn't know who to call and were told that Garner Heating and Air Conditioning would take care of us. We called and spoke with Ryan who was here within the hour (on a Saturday afternoon!). He had to clear away the brush around the A/C before even beginning the service. He quickly diagnosed and fixed our problem. Ryan was prompt, friendly, honest, and extremely knowledgeable. This is an 18 year old system, so he did what it took to keep it going. We know that we will work with Ryan and Garners in the future when we need a new A/C. Thanks for great service!


great service and a good price goot done in one day




Review of Garner Heating & Air Conditioning, Inc.


As always Garner and Maxet all needs with prpofessionalism and courtesy. Thank you!




Review of Garner Heating & Air Conditioning, Inc.

Glad we have been with Garner for over 10 years.


very satisfied




Review of Garner Heating & Air Conditioning, Inc.

Garner A/C is the best I've experienced in the five states I've lived and worked in. Can't say enough good things about every facet of their company.


Great Service




Review of Garner Heating & Air Conditioning, Inc.

Max was great. He’s very professional and thorough in explaining things.


Garner is the best




Review of Garner Heating & Air Conditioning, Inc.

Their technician, Max Bethke, is always prompt for appointments, knows his business, and has great customer service. We always look forward to seeing Max for our seasonal checkups.


Great service




Review of Garner Heating & Air Conditioning, Inc.

The guys did a great job cleaning my ac unit and ducts.


Max B.

Max B.

I found the mini split head in the living room to be sloping forward and leaking water. I gave the customer her options and she chose to go ahead and have it fixed.

Near Lazy Ln, San Marcos, TX 78666
Ryan P.

Ryan P.

Found a mini split system with a leak in a flare. Will return tomorrow and fix the system. Quote in the system for scheduling tomorrow.

Near W Bluebonnet Dr, San Marcos, TX 78666
Max B.

Max B.

When I arrived I find a non-pumping compressor. I give the customer their options and they choose to have it replaced.

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

Max B.

Near Lacey Oak Loop, San Marcos, TX 78666
Max B.

Max B.

Perform the AC tune-up and everything is working at this time.

Near River Hills Dr, San Marcos, TX 78666
San Marcos, TX - Perform the AC tune-up and everything is working at this time.
Max B.

Max B.

When I arrived, the upstairs thermostat was not responsive. After taking it off the wall I realized the connection from the base to the user interface was not on correctly. I pushed it on, and everything came on. I climbed into the attic and found the supply plenum was leaking lots of air. I informed the customer and she said she is going to contact the builder because they were supposed to fix it the last time they were out and if they don’t she will have us come put a new supply plenum on.

Near Lacey Oak Loop, San Marcos, TX 78666
Ethan D.

Ethan D.

Returned to finish out pre-existing flue pipe in attic to roof. Pieces were strapped and secured. System is ready for heating in the winter.

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

Max B.

customer informs me that they had a massive surge a couple of days ago and ever since then the system was not working correctly. After looking at the system I found that the compressor was running in reverse on a straight cool condenser. I pull the power, let it reset, and everything came on and is working at this time. I inform the customer that if it starts to act up again to give me a call immediately.

Near Rail Head Rd, San Marcos, TX 78666
Don L.

Don L.

Fix leak in lineset and charge system to factory specs. Working at this time

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

Max B.

the customer informs me that he is going blind and can’t see well. The breakers that he shows me are on the bottom right side of the panel and the breakers that go to our unit are on the top left. They also ask me why there are 2 cool settings on the thermostat, and I look and there was not; it’s off, heat, cool and emergency heat. And that was both the husband and wife.

Near Hamilton Hollow Rd, San Marcos, TX 78666
Don L.

Don L.

Create quote for line set

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

Max B.

I find a completely depleted voltage enhancer and the voltage distributor is in poor condition. I call Todd and give him his options and he chooses to go ahead and have the parts replaced at this time at the silver level. After replacing the voltage enhancer, voltage distributor and clearing the primary drain line, everything is working at this time.

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

Max B.

The customer informs me that he had another company out a few weeks ago to work on his upstairs system and while they were here, they checked the refrigerant in the downstairs system. The other tech said it was good, but the homeowner said they let out a lot of refrigerant. After hooking my gauges up to the downstairs system, it was low on refrigerant. I gave the homeowner options, but he just wanted the refrigerant at this time. I added R-410A refrigerant at the basic level at this time. I did inform the customer if it seems to not be cooling again then it most definitely has a refrigerant leak.

Near Pincea Pl, San Marcos, TX 78666
Max B.

Max B.

When I arrived, I found the voltage enhancer to be a complete failure as well as the voltage distributor in poor condition. I gave the customer their options and they chose to have it replaced at the platinum level at this time. After replacing the voltage enhancer, voltage distributor and installing a start assist everything is coming on and working at this time.

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

Max B.

When I arrived, I found the system to be completely frozen up again. Our office did advise the customer to turn the system off and the fan to the on position, but it was running when I arrived. After thawing the system out and turning it back on everything is running and working at this time. I have 6゚ of subcooling 19゚ of superheat, I had a Delta T of 24゚ and I had a static pressure up .38 across the furnace.

Near Pearce Ct, San Marcos, TX 78666
Max B.

Max B.

Reviewed quotes with customer.

Near Dale Dr, San Marcos, TX 78666
Don L.

Don L.

Purged and treated the primary drain line. Ran two quarts of water down the drain to ensure that it was clear. System working at completion of service.

Near W De Zavala Dr, San Marcos, TX 78666
Max B.

Max B.

Waiting to hear back from the supply house about return air filter grille availability. Will contact customer once part is in. Diagnostic will be discounted off price of repair.

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

Max B.

When I arrived, I found the system to it be completely frozen up and it seems like it has been frozen for many days if not weeks. The tenant informed me they just cleaned the filter this past Friday and it was very dirty. I recommended getting disposable filters and replacing them once a month to prevent this from happening again. After thawing the system out and turning it back on everything is running and working at this time. I had 14 degrees of superheat and 11 degrees of subcooling at this time.

Near Pearce Ct, San Marcos, TX 78666
Max B.

Max B.

When I arrived, I found a bad voltage enhancer in the system that controls the living area. I gave the customer his options and he chose to have the parts replaced at the bronze option. After replacing the parts everything is coming on and working at this time.

Near Blanco River Ranch Rd, 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.