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San Marcos TX Heating & Air Conditioning Services

Expert AC Repair In San Marcos, TX Comfortable Since 1988

There's something so wonderful about stepping indoors after a day out in the unbearable heat and feeling the cool blast of a perfectly tuned air conditioner washing over your face. But what if your HVAC system isn't perfectly tuned? What if the only thing that greets you when you come in from the heat is... more heat? When you need air conditioning repair in San Marcos, TX, that's when Garner Heating & Air Conditioning has your back. From professional HVAC maintenance to keep your system running true to expert repairs when something goes wrong, our heating and air conditioning service provides you with the right solution backed by exceptional service.

For the best heating repair, AC repair and indoor air quality services San Marcos has to offer, Garner Heating & AC is the only company you need - reach us online or call us at 512-392-2000 today!

garner truck outside university of texas san marcos

Indoor Air Quality Services In San Marcos, TX

Everyone should be able to breathe easy in their own home - but our air indoors is often more polluted than the air outside! That's why Garner AC offers dependable indoor air quality services, like powerful HVAC UV lights, potent air purifiers, and an array of AC and furnace filters so we can find the right one for your home's needs. Take a big step toward improving your family's health and give us a call at 512-392-2000 today!

Air Duct Cleaning In San Marcos, TX

One of the most effective indoor air quality services we offer to the citizens of San Marcos is our professional duct cleaning. When your ducts are dirty, they take all of that dirt, grime, pollution, and other nastiness and spread it throughout your home as your furnace or air conditioner are running. After our duct cleaning service, your air will be clean and free of contaminants, improving your home's environment and your family's health.

AC Repair In San Marcos, TX

Did your air conditioner kick out? Nobody wants to deal with a malfunctioning unit in the heat of the Texas summer (we just have to do everything bigger here, don't we?) so our technicians are on standby ready to diagnose and treat your San Marcos air conditioning system today. We'll check everything out top to bottom to identify the true root cause of your problem so we can deliver a lasting, dependable solution. For the best in air conditioning service, contact Garner today!

Heating, Cooling, Air Quality - Garner Does It All

There isn't an aspect of your HVAC service we can't repair, service, or update. See our wide range of offerings below:

How do I choose an HVAC contractor in San Marcos TX?

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.

How much does HVAC repair cost in San Marcos TX?

The average cost to repair an air conditioner in the San Marcos area is around $125-$2000. 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: $300
  • Replace capacitor or contactor: $335
  • Replace fan/blower motor: $800
  • Replace control board: $300-$1200
  • Replace evaporator coil: $2500-$3500
  • Replace compressor: $2500

*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.

What is the average cost to replace a central air system in San Marcos TX?

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 $7,000 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.

How much does it cost to service your HVAC system near San Marcos TX?

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.  

Why isn’t my HVAC system turning on near San Marcos TX?

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.    

What is included in AC maintenance near San Marcos TX?

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

One Company Is All You Need For Ongoing Comfort

Could your home use an HVAC replacement? Maybe your furnace is on the blink and needs heating repair, or you're interested in regular HVAC maintenance to make sure your system runs as it should year-round? It doesn't matter the need, Garner is here and ready to help. We've got decades of combined experience and we've seen and done just about everything there is to do when it comes to home comfort, so if you're looking for a reliable heating and cooling services company, you've come to the right place.

Don't Delay - Contact The Best AC Repair In San Marcos, TX Today!

Unfortunately, there is no convenient time for your HVAC system to have an issue. Since a failure in your system will inevitably lead to unbearable days and uncomfortable nights, you need to stay on top of making sure your HVAC is running well. The best way to do that is to put us on the job - and then forget about it entirely. We can take care of everything, leaving you with true peace of mind and, more importantly, lasting comfort.

But for a fresh perspective, how about hearing what your San Marcos, TX neighbors have to say about us? You can read some of their reviews below:

Recent Jobs and Reviews in San Marcos, TX

Rated 4.9 out of 5 stars based on 112 customer reviews

Customers say: The reviews exhibit a positive sentiment overall, with many customers expressing satisfaction with the services provided. The technicians are often described as friendly, knowledgeable, and professional, with some customers highlighting their punctuality and thoroughness. There are also mentions of excellent customer service, with technicians taking the time to explain the work done and answer any questions. Additionally, customers appreciate the cleanliness and quietness maintained during the service, as well as the respect shown for their property. The recurring themes include professionalism, expertise, courtesy, and efficiency. Overall, the reviews suggest that customers have had positive experiences with Garner Heating and Air Conditioning and would recommend their services.

Job Locations and Reviews

Omar H.
Omar H. Checked in
Performed a heater tune-up on one heat pump system. Checked all electrical, mechanical and performance of the system. Filters were replaced with customer supplied filters. I used my vacuum and hooked it to the drain line outlet by the condenser. I then poured 2 gallons of water in the primary drain pan and then treated the drain pan. I washed the outdoor coil and secured the compressor wiring to prevent any electrical rub outs. No other major issues were found, and the system is operational at this time.
San Marcos, TX 78666
Omar H.
Omar H. Checked in
Performed a heater tune-up on a Trane gas furnace system. Checked the electrical, mechanical and performance systems of the unit. Cleared, cleaned, flushed and treated the drain line and cleaned the exterior of the furnace. I replaced the high voltage wire nuts with a Wago wire connector. I did find that the gas outlet pressure at the furnace is high at 9.1in. w.c.. I lowered it to the rated 3.5in. w.c.. I also found the system has high static pressure but due to the location of the system there is no space for ducting improvements. No other major issues were found, and the system is operational at this time
San Marcos, TX 78666
Omar H.
Omar H. Checked in
Performed the heater tune-up on a Carrier heat pump system. Checked the electrical, mechanical and performance systems of the unit. Cleared, cleaned, flushed and treated the drain line and cleaned the exterior of the air handler system. Washed the outdoor unit and secured the compressor wiring. No major issues were found, and the system is operational at this time.
San Marcos, TX 78666
Review
Chey, was so thoughtful and careful in his inspection and work. He is an outstanding technician.
Becky - San Marcos, TX 78666
Chey S.
Chey S. Checked in
Single system heating tune-up completed on a horizontal furnace. I adjusted the gas pressures to manufactures specs. No other major issues found.
San Marcos, TX 78666
Chey S.
Chey S. Checked in
Heating tune-up completed on a horizontal air handler/heat pump system. I did recommend a factory refresh on the condenser which includes a new contactor, capacitor, and condenser fan motor, as all these components are showing signs of age and deterioration. No other major issues were found, and the system is working properly at this ti
San Marcos, TX 78666
Matt F.
Matt F. Checked in
Service diagnostic found that the 5-amp fuse in the air handler was blown. I went through the wiring checking for shorts and did not find any. I went through the wires and did not find any frayed or exposed wires. I replaced the fuse and tested the system in cooling, heating auxiliary heating and fan modes. The system was operating normally. Once the system was operational, I performed a heat check on the system. Checked electrical, mechanical, safety, and performance of the system. I cleared the drain line and flow tested the system with two gallons of water. I replaced the filter with a customer supplied filter. No other major issues were found, and the system is running at the completion of service
San Marcos, TX 78666
Chey S.
Chey S. Checked in
Heating tune-up completed on a horizontal air handler. During my tune-up, I found that both plenums have partially detached. The ductwork also has multiple significant leaks throughout the entire system. In addition, I found that the disconnect for the condenser is not working properly. No other major issues found.
San Marcos, TX 78666
Review
Fantastic service
Ann - San Marcos, TX 78666
Matt F.
Matt F. Checked in
Performed heater tune-up. Checked electrical, mechanical, safety, and performance of the system. I cleared the drain line and flow tested the drain with two gallons of water. I then treated the drain line. I found some mold was growing inside the air handler around the evaporator coil. No other major issues found.
San Marcos, TX 78666
Angel T.
Angel T. Checked in
Autumntime HVAC Maintenance Service – To prepare for the colder months, I carried out a thorough cleaning of the heat exchanger and checked the furnace's heat strips. I also inspected the ductwork for potential air leaks, sealing any gaps to maintain consistent heating throughout the home. This preparation ensured the system was in top condition for efficient performance during autumn and winter.
San Marcos, TX 78666
Angel T.
Angel T. Checked in
Heating Repair Service – A property owner reported that their heating system was not producing adequate heat. During my inspection, I found that the heat exchanger was cracked, posing both an efficiency and safety risk. I replaced the heat exchanger and conducted a carbon monoxide test to ensure the system was safe for continued use. The heating system was restored to full functionality, providing reliable warmth.
San Marcos, TX 78666
Angel T.
Angel T. Checked in
AC System Repair – A homeowner reported that their air conditioner was emitting a burning smell. After a detailed inspection, I found that the motor's bearings were worn out, causing overheating. I replaced the worn bearings and thoroughly tested the motor to confirm that the issue was resolved. This repair ensured the AC unit would run smoothly without any further concerns.
San Marcos, TX 78666
Review
Matt is super nice, punctual, and thorough.
Glen - San Marcos, TX 78666
Response from Garner Heating & Air Conditioning Inc:

It was a pleasure serving you and your family. Thank you for sharing your kind words with us. It means the world to us and to our entire team!

Matt F.
Matt F. Checked in
Performed heater tune-up. Checked electrical, mechanical, safety, and performance of the system. I cleared the drain line and flow tested the drain with two gallons of water. I also treated the drain. During the check I found that the hot surface igniter is cracked and will not reliably ignite the furnace. Presented my findings to the homeowner, and Glen chose to have the igniter replaced today. I replaced the igniter and cycled the system. The system is heating properly after completion of repairs. No other major issues found.
San Marcos, TX 78666
Omar H.
Omar H. Checked in
Performed a heater tune-up on a Carrier gas system. Checked electrical, mechanical and performance systems of the unit. Cleared, cleaned, flushed and treated the drain line and cleaned the exterior of the furnace. I replaced the high voltage wire nuts with a Wago wire connector. We also reduced the fan speed in cooling mode which decreased the total static pressure of the system. No other major issues were found, and the system is operational at this time.
San Marcos, TX 78666
Ethan D.
Ethan D. Checked in
Completed installation of an all-new duct system. Installed new extended supply plenum and return plenums. Installed and sealed all new buckets and grilles. Raised unit on 8” vibration isolators. Created transition between furnace and coil. System operating at this time.
San Marcos, TX 78666
Matt F.
Matt F. Checked in
Performed the heat check on two systems. Checked electrical, mechanical, safety, and performance of the systems. The drain lines were cleared, and flow tested with two gallons of water each. The drain lines were then treated. No major issues were found, and the systems are running at the time of departure.
San Marcos, TX 78666
Omar H.
Omar H. Checked in
Performed a heater tune-up on a Lennox gas system. Checked the electrical, mechanical and performance systems of the unit. Cleared, cleaned, flushed and treated the drain line and also cleaned the exterior of the furnace. I replaced the high voltage wire nuts with a Wago wire connector. I also sealed the furnace to prevent any unfiltered attic air from being pulled into the system. I then checked the static pressure of the system and found that the static is high due to the filter being too restrictive. My total static pressure reading on the furnace was 1.19. My return side reading with the filter was .71, I then removed the filter, and my static reading dropped to .32. No other issues were found, and the system is operational at this time.
San Marcos, TX 78666
Angel T.
Angel T. Checked in
Air Conditioning System Tune-Up: The client requested a tune-up for their air conditioning system ahead of the autumn transition. During the service, I identified that the system’s condenser fan was operating sluggishly due to debris buildup. I cleaned the fan and lubricated its components, restoring the unit’s efficiency for both cooling and heating during the changing temperatures.
San Marcos, TX 78667
Angel T.
Angel T. Checked in
HVAC System Repair Service: During an autumn service call, I found the client's HVAC system had a faulty blower motor, causing inadequate airflow throughout the home. I replaced the malfunctioning motor, restoring consistent airflow and ensuring the system could efficiently heat the home as temperatures dropped.
San Marcos, TX 78666
Omar H.
Omar H. Checked in
Performed heating maintenance on a gas system. Checked all electrical, mechanical, safety and performance of the system. Cleared and treated the drain line and wiped the exterior of the furnace. Taped around the filters to prevent any air bypass. All surge protectors and air purifiers are working. No major issues were found, and the system is operational at this time.
San Marcos, TX 78666
Review
Excellent customer service! Omar went over his assessment with me thoroughly and answered all my questions. He was on time, friendly and professional!
Robin - San Marcos, TX 78666
Review
Ethan & his assistant were very efficient and kept the work area very clean and quiet.
Catherine - San Marcos, TX 78666
Ethan D.
Ethan D. Checked in
Installed new 12x24 return air filter grille. Built new return plenum and sealed all connections with mastic air lock. Ran a new 14” flex duct into the existing return plenum. Verified system operation and cleared and treated drain line. Everything working at this time.
San Marcos, TX 78666
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