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.

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 36 customer reviews


Gerald Champagne




Review of Garner Heating & Air Conditioning, Inc.

Exacellent Service


Spring Maintenance




Review of Garner Heating & Air Conditioning, Inc.

Max is always very courteous and thorough.


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.


Max  B.

Max B.

Performed the heater tune-up and everything is working to specifications at this time.

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

Max B.

Performed the heater tune-up and everything is working at this time. The ignition system did not start the first time I turned it on. I unplugged it to check it and when I put it back together everything came on. I informed the customer and they wanted to hold off on replacing it at this time.

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

Max B.

Performed the heater tune-up and everything is working at this time. While performing the inspection I did find the ignition and combustion system to be weak and slow starting. I gave the customer their options and they chose to have it replaced at the platinum level at this time. After performing a platinum level repair everything is working and performing to factory specs.

Near Field Corn Ln, San Marcos, TX 78666
Max  B.

Max B.

Found a bad condenser fan motor on startup of the system. The motor will be in tomorrow and we will put it in this week.

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

Max B.

the customer informed me that there was water coming out of the mini-split head that controls the bathroom. I poured 5 bottles of water into the drain pan and watch them flow out of the drain outside of the house with no problems. I turned the system on and let it run for about 45 minutes and could not get the system to replicate any type of moisture dripping from the system. After it ran for 45 minutes, I poured 2 gallons of water into the drain pan just to be sure that everything is free flowing at this time. Per Ryan there will be no charge at this time. I did inform the customer that they will need to keep up with changing the filters or this could happen again. I also told them that if it happens again there will be a service charge for coming out.

Near W Hopkins St, San Marcos, TX 78666
George T.

George T.

Diagnosed a clogged drain. Presented options to perform drain treatment but customer unemployed and did not want to move forward with purge. System is up and cooling at this time. Also recommended a tune-up.

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

Max B.

When I arrived, the customer informed me that the indoor system was making a strange drilling noise. I turned the system on and checked everything out and could not get it to replicate the noise for me at this time. The motor seems to be fine at this time. I informed the customer that if it happens again to give me a call so I can hear it to help pinpoint the issue.

Near Boulder Bluff, San Marcos, TX 78666
Ryan P.

Ryan P.

Performed a water removal system renovation. We installed a new secondary condensate drain pan, new vibration reduction system and installed a new ceiling saver switch to trap any overflow condensate. We also rebuilt the primary and secondary drains and corrected the orientation of each that were installed incorrectly at the initial installation. We sealed the tape joints that were coming loose with mastic and hard cast. Thoroughly cleaned the condensing coil and rebuilt the voltage enhancement system on the furnace blower motor. System is in good working order at this time.

Near Hay Barn St, San Marcos, TX 78666
Chase R.

Chase R.

Conducted cooling check 2020 on down flow electric heat system. The system is cooling properly at this time.

Near Ridgeway Dr, San Marcos, TX 78666
Doug G.

Doug G.

Installed a Carrier 2-ton straight electric system. Installed all ductwork throughout home. Sealed supply plenum to unit and installed line set cover. Pulled deep vacuum and installed condensate pump.

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

Max B.

Performed the AC tune-up and everything is working at this time. While performing the AC tune-up I found the voltage enhancer to be weak and undervalued; it is rated at 40/5 and reading 7.9/2.1. I gave the customer his options and he chose to have it replaced at the platinum level at this time. After performing a platinum level voltage enhancer repair with installing a new voltage enhancer, voltage distributor and installing a new start assist everything is working at this time.

Near Newberry Tr, 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 the condenser fan motor had an oily residue on the outside of it. I checked the bearings as well as the amp draw, and everything is checking out good at this time. I informed the customer and he said he will keep an eye on it.

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

Max B.

Called the customer and he informed me that it seemed like one of the rooms in the house was not cooling as well as other rooms, but he also informed me that the door is kept closed all the time. I suggested that they try cracking the door by about 4” - 5" and running it that way for a few days to see if that helps. If it does then we will have to add return air into that room.

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

Max B.

When I arrived, I found some loose connections in the air handler. After repairing the connections, the system is now cooling properly.

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

Max B.

When I arrived, I found the water removal system to be backed up and not draining. I spoke to the customer about his options and he chose to have it cleared at the basic level at this time. After clearing the drain, the system is back up and cooling.

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

George T.

New climate control (Honeywell T1) has been installed and programmed. Walked customers through operations and told them if they have any issues to give me a call. System up and cooling.

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

Max B.

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

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

Max B.

Called the customer when I was about to start heading over to their house and she was asking me if it could potentially be the filter again. I informed her that it could be and if I came out there and found out that it was just a dirty filter again, I will have to change them again. She told me that they are going to replace the filters, let it thaw out and if it freezes up again, she will give us call back.

Near 3rd St, San Marcos, TX 78666
Max  B.

Max B.

When I arrived, I found the primary drain line to be backed up and the secondary drain pan to be full of water. I gave the customer his options and he chose to have it cleared and treated at the basic level at this time. After clearing the line and pumping all the water out of the drain pan, the system is working at this time. I also sold and replaced the American Standard Perfect Fit filter in the system.

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

Max B.

When I arrived, I found the mini split head in the living area to be dripping a little bit of water every now and then. I found that the drain tube had a slight restriction in it. I cleared through it again and everything is working at this time. I did inform the customer that this is under warranty from the work we did a month ago however if it happens again we will need to run a whole new drain line through the wall and that will not be covered. The drain tube that is in there now is the ribbed small diameter mini split drain hose.

Near Lazy Ln, 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.