AC & heating service in San Marcos, TX
AC Repair & Heating Service in San Marcos, TX
San Marcos is the Hays County seat, home to Texas State University and the spring-fed San Marcos River. The AC Guys serve San Marcos homeowners from our base in Kyle, about 9 miles south-southwest.

- About 9 milessouth-southwest of Kyle
- Hays CountyTexas
- Licensed in TexasTACLB32066E
- One-year warrantyParts & labor
Heating & cooling in San Marcos
Local help for San Marcos homeowners
San Marcos is the Hays County seat, home to Texas State University and the spring-fed San Marcos River. The AC Guys serve San Marcos homeowners from our base in Kyle, about 9 miles south-southwest. We help with AC repair, heater repair, seasonal maintenance, system replacement questions and more, and we explain what we find in plain English before approved repair work begins.
Beyond established neighborhoods, San Marcos has many rental homes, duplexes and student housing, plus older houses near the historic downtown.
Locally owned in KyleTexas License TACLB32066EOne-year parts & labor warranty
Where San Marcos sits in our service area
San Marcos is about 9 miles south-southwest of our Kyle location. We serve homes throughout Hays County, TX. Not sure whether your address qualifies? Send a request and we will confirm.
What San Marcos homes ask of their HVAC
Rental properties and older homes are hard on equipment: tenants change, filters get forgotten and older systems keep running past their best years. We can help owners and managers keep equipment in working order.
Homes in Hays County ask their air conditioners to run for long stretches from late spring into fall. Long run times mean more wear on capacitors, contactors, fan motors and compressors, and dust and pollen can clog filters and outdoor coils. In winter, mountain cedar pollen season can load filters and coils quickly across the Hill Country, so it is worth checking the filter more often than you might in other parts of the state.
How we can help San Marcos homeowners
AC Repair
Warm air, weak airflow, strange noises or a system that will not start.
Heater Repair
Cold rooms, no heat or a furnace or heat pump that is acting up.
Seasonal Maintenance
A tune-up and inspection before the hottest and coldest months.
System Replacement
Honest repair-or-replace guidance when your system is aging out.
Indoor Air Quality
Options for cleaner, fresher air inside your home.
Ductwork Modifications
Airflow fixes and duct changes for rooms that never get comfortable.
What to expect when you call
Tell us what’s happening
Call or send a request. Describe what the system is doing and when it started.
We inspect the system
A technician checks the indoor and outdoor equipment to find the cause, not just the symptom.
You get the findings and an estimate
We explain what we found in plain English and give an estimate before approved repair work begins.
We make the repair
Once you approve, we complete the work and confirm the system is operating properly.
Frequently asked questions about HVAC service in San Marcos
Do you work with landlords or property managers in San Marcos?
We can. Tell us about the property and what you need when you send your request, and we will talk through how we can help.
Do you serve San Marcos, TX?
Yes. San Marcos is within about 9 miles of our Kyle location, which is inside our Hays County service area. Send a request with your address and we will confirm.
My AC is running but not cooling my San Marcos home. What should I do?
If the system is blowing warm air, making loud or unusual noises, or has ice on the lines, turn it off at the thermostat and call. Running a struggling system can turn a small repair into a larger one. A technician needs to test the system to find the real cause rather than guess.
How do I know if I should repair or replace my system?
It depends on the age of the system, the type of problem and the cost to fix it. After a diagnosis we explain what we found and your options, including when replacement may make more sense than another repair.
Do you give an estimate before repair work begins?
Yes. After evaluating the issue we explain our findings and give you an estimate of the repair cost before approved repair work begins.
Nearby communities we serve
Need help with your AC or heater in San Marcos?
Tell The AC Guys what’s happening. We’ll help you take the next step.
