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!

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:
Here are the top considerations when choosing a heating and cooling company:
- 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.
- 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.
- 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.
- 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.
- 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 $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.
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:
- The size of your home or how much of your home you want to keep cool or heated at any given time.
- How efficient your new system will be or SEER Rating.
- Do you want or need upgrades in your thermostat, indoor air quality or ductwork?
- Warranty selection - most warranties come with limited and extended parts warranty.
- 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.
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
Customers say: The reviews exhibit a positive sentiment overall, with a slight inclination towards the positive. The reviewers frequently mention the quality of the service, the professionalism of the technicians, and the efficiency of the work. Positive reviews often highlight the promptness, thoroughness, and expertise of the technicians, with specific praise for their communication skills and helpfulness. Customers also appreciate the attention to detail, the thoroughness of the inspections, and the helpful maintenance tips provided. The technicians are described as friendly, knowledgeable, and efficient, with a focus on customer satisfaction. Negative reviews are relatively few in number and primarily focus on minor issues or scheduling conflicts. The overall sentiment is positive, with customers expressing satisfaction with the service provided by Garner HVAC.
Our Local Reviews by City
- Austin, TX (65)
- Buda, TX (258)
- Canyon Lake, TX (1)
- Creedmoor, TX (2)
- Dale, TX (1)
- Driftwood, TX (22)
- Dripping Springs, TX (19)
- Hays, TX (1)
- Kingsbury, TX (1)
- Kyle, TX (359)
- Lockhart, TX (12)
- Manchaca, TX (6)
- Martindale, TX (11)
- Maxwell, TX (3)
- Mountain City, TX (21)
- New Braunfels, TX (10)
- Niederwald, TX (6)
- San Marcos, TX (117)
- Seguin, TX (1)
- Uhland, TX (1)
- West Lake Hills, TX (1)
- Wimberley, TX (69)
- Woodcreek, TX (3)
Job Locations and Reviews
Installed new evaporator coil and new TXV. Installed new liquid line bi-flow filter drier. Cleaned out primary drain pan and installed new safety switches Cleared out primary drain line and tested with water. Pressure tested system with nitrogen and pulled vacuum. Charged AC with R-410A. Tested heating and cooling operation. Everything is working at this time.
Performed A/C tune-up on a straight cooling system and 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, which were melted at the furnace, with a Wago wire connector. I also sealed some air straws on the furnace. Secured the outdoor compressor wiring and washed the outdoor coil. I did find the blower motor capacitor is below value and the outdoor starter is pitted at the contacts. No other issues were found. The thermostats were left off per homeowner request.
Excellent
AC cool check completed on horizontal furnace. I found a capacitor below manufacturer specs, a condenser fan motor showing signs of overheating, and no float switch installed. No other major issues were found. The system is cooling at time of departure.
AC cool check completed on a horizontal heat pump system. All mechanical and electrical found to be within manufacturer specs. No major issues were found at this time. The system is cooling properly at time of departure.
Cool check complete on nine-year-old horizontal Trane system. Checked all mechanical, electrical, and safety of the system. No major issues were found. The system is operating properly at this time.
AC check completed on a horizontal Carrier system. No major issues were found at this time. The system is cooling properly at time of departure.
AC cool check completed on a 10 year-old Lennox unit. The electrical and mechanical were checked and are within manufacturer specs. No major issues found at this time. The system is cooling at time of departure.
I performed an air conditioning tune-up on a Lennox straight cooling system and checked the electrical, mechanical and performance systems of the unit. I washed the outdoor coil and secured the compressor wiring which was resting on the copper discharge line of the compressor. The vibration was rubbing the insulation off the wire which could then touch the copper and blow a hole in the discharge line. I cleared, cleaned, flushed and treated the drain line and cleaned the exterior of the furnace. As I was clearing the drain line, I found that the PVC connection after the p-trap was not glued and was leaking out water. I also found that the blower motor capacitor was below value, the blower wheel was dirty, and there was no water safety switch on the secondary drain line. I spoke to the homeowners about repair options, and they decided to have the water safety switch installed and the blower motor capacitor replaced. I completed the repairs and also repaired the PVC connec
I performed a cooling check on carrier upflow system. I verified 22° temperature split. I spoke to homeowner about adding surge protection and he has declined for now. No major issues were found. System was cooling properly at time of departure.
Two system heat check performed on two horizontal furnaces. I did find high static pressure on the Northside unit. No other major issues found.
HVAC Repairs: A homeowner experienced diminished cooling efficiency. Upon inspection, I found a clogged evaporator coil, which was hindering heat absorption. I thoroughly cleaned the coil, restoring proper heat exchange and significantly improving the system’s overall performance.
HVAC System Repairs: A homeowner complained about uneven cooling throughout their home. After evaluating the system, I discovered imbalanced refrigerant levels causing temperature inconsistencies. By properly balancing the refrigerant, I ensured uniform cooling and enhanced overall system efficiency.
Performed heat check. Checked electrical, mechanical, safety, and performance of the system. I cleared the condensation drain line and flow tested the drain with two gallons of water. I also treated the drain line. The air filters were replaced by the homeowner yesterday. No major issues were found. The system was running at the completion of service.
Performed the heater tune-up on one American Standard 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. Replaced the Perfect Fit filter. No major issues were found. The system is operational at this time.
Heating tune-up completed on a horizontal furnace. No major issues found.
Omar Hernandez was very prompt and professional. He explained what he was going to do and then gave updates afterwards.
Performed the heater tune-up on a Lennox 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 found that the return air filter is dirty and there is no water safety switch on the secondary drain line. I spoke with homeowner, and he said he would buy a new filter and replace it ASAP. No other major issues were found. The system is operational at this time.
Performed the heater tune-up on a Lennox 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 sealed two areas on the blower assembly to prevent any attic air from being pulled into the home. I also secured the inducer motor harness to prevent any electrical rub outs. I also found that the return air filter is dirty and spoke with the tenant about having it replaced as soon as possible to prevent any unwanted stress on the furnace. No other major issues were found. The system is operational at this time.
On arrival I spoke with homeowner, and she mentioned that the main system thermostat was blank. I performed the diagnostic and found that the low voltage 5-amp fuse was blown. I installed a new fuse and cycled power at the thermostat with no issues in heating, air conditioning and auxiliary heating modes. I then performed a heater tune-up on two Carrier heat pump systems. Checked the electrical, mechanical and performance systems of the units. Cleared, cleaned, flushed and treated the drain line and cleaned the exterior of both air handler. Washed both outdoor coils and verified the compressor wiring is secure. No other major issues were found. Both systems are operational at this time.
Performed the heater tune-up. No major issues were found.
Heat check completed on a vertical heat pump system. No major issues found at this time.
Had our winter checkup with Chey. Great guy. Conscientious, polite and attentive to detail. He reps Garner well!
Angel with Garner HVAC did a great job, very professional.
As always great person great service
Thanks for sharing your review with us and the community.