AC Maintenance in San Marcos

Serving San Marcos Homes & Businesses Since 1996, with the Same Familiar Faces

San Marcos summers run long and hard, and an air conditioner that hasn’t been serviced is one heat wave away from failing when you need it most. Reliable Air provides a comprehensive 16-point AC tune-up for $159, covering everything from thermostat operation to a full system run and test. Whether you own a home or manage a commercial property, our technicians arrive with the tools and training to inspect, evaluate, and give you an honest report on your system’s condition.

We offer 2-hour scheduling windows, same-day service, and a technician call 30 minutes before arrival. Recognized as a Top 3 Winner in Best of Hays 2024 for Air Conditioning, we serve customers in English and Spanish throughout San Marcos and the surrounding area.

Ready to schedule your air conditioning maintenance in San Marcos? Call (512) 580-8837 or use our online form to book a time that works for you.

A Maintenance Team You’ll Actually Recognize

One of the most common frustrations with service companies is not seeing the same face twice. At Reliable Air, many of our technicians have been with us for 10 or more years. That kind of tenure builds real consistency: customers get technicians who know the systems in their neighborhood and treat each visit with the same honesty and care.

We provide upfront, transparent pricing before any work begins. No surprises at the end of the appointment. Our continuously trained technicians back that approach with a 100% satisfaction guarantee, and our business runs on faith and family values. Integrity in every assessment isn’t a policy here, it’s the foundation.

We proudly serve English and Spanish-speaking customers across San Marcos, Kyle, New Braunfels, Wimberley, and Hays County, for residential and commercial properties alike.

What Our 16-Point AC Inspection Covers

A tune-up is only as useful as its checklist. Here’s exactly what our technicians inspect during a standard $159 visit:

The 16-point tune-up checklist:

Check thermostat operation
Clean or replace filter (customer-supplied filter)
Check system temperature split
Inspect disconnect
Inspect fuses
Inspect wiring
Tighten electrical connections
Inspect contactors, relays, and pressure controls
Inspect electrical safety circuits
Check voltage and amperage to all motors
Inspect indoor blower and motor for dirt buildup
Inspect bearings and lubricate all moving parts if needed
Inspect condensate drain
Inspect outdoor coil
Inspect duct seal at unit and secure panels
Run and test system

At the end of the inspection, your technician walks you through every finding and any recommendations for improvement. The standard tune-up doesn’t include drain clearing or condenser washing, and inspections for other system types may vary.

San Marcos sits in the limestone belt of Central Texas, and water drawn from the Edwards Aquifer carries high mineral content that accumulates on evaporator coil surfaces and inside condensate drain lines over a cooling season. Left unchecked, that buildup restricts airflow and raises the risk of drain backups. Catching it during a tune-up can cost less than dealing with a clogged drain or diminished AC repair capacity in the middle of July. Checking voltage and amperage to all motors flags electrical stress early, before it shortens compressor or fan motor life.

Why Regular Maintenance Pays Off in Central Texas

A San Marcos cooling season can stretch six months or longer. Systems that haven’t been serviced work harder to hit target temperatures, and that extra strain compounds over time. Annual preventive HVAC maintenance helps systems operate efficiently, which can reduce monthly energy costs and support longer system life.

Consistent maintenance also helps keep dehumidification effective during the humid stretches of summer, a factor that matters as much as temperature in this climate. Beyond comfort, most manufacturers require documented professional maintenance to keep warranty coverage valid. Skipping tune-ups can void that protection entirely, turning a covered repair into an out-of-pocket expense.

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"3 years of frustration cured in under an hour!"
They were able to diagnose the root cause and fix an issue that had been a nagging problem ever since the HVAC was installed by another company.

- Chance S.
"The installation came with a 10 year parts and maintenance, so this is all being done free of charge."
We used them to install a brand new a/c unit about 4 years ago and just had our first issue with it this week. I called yesterday, and they had someone out first thing this morning to fix it.

- Dave N.
"When he arrived he was professional, kind, and we knew we were in good hands."
He fixed our AC and was out in 45 minutes. Best of all we had no outrageous service call fee and saved us money. We definitely will use Reliable Air again and highly recommend them for your heating and air conditioning needs!

- Amanda N.
"When Edgar arrived he was polite and courteous. He explained what he was going to complete the diagnostics first."
He then explained what needed to be done and made sure I understood. It was very appreciated that he gave me time to decide on my repair because it was going to cost a bit of money.

- Esther T.
"This company is by far the best company you can ever find. They have been helping us off and on for over a year."
There was no pressure - no salesy pitch - and they continued to help us even though they knew our system was old and needed to be upgraded. They would come late in the day if needs be, and worked around our schedule

- Susan & Blake
"I highly recommend Reliable Air for any HVAC needs."
JW was the technician that serviced my HVAC unit. He was on time and professional.

- Joseph M.
"I will use you guys again in the near future!"
He knew exactly what needed to be fixed and he was right on it. I thank you all for the quick, fast and in a hurry respond you did for my family and I. Especially during this freezing weather.

- Anna A.
"I am very happy with the professional informative technicians and office people at Reliable Air."
I HIGHLY recommend this San Marcos company who now does plumbing. Today they installed my new water softener and I am very happy with their service.

- Lisa R.

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The VIP Maintenance Plan: Proactive Coverage All Year

A one-time tune-up handles today’s maintenance. The VIP Maintenance Plan handles next year’s too, without requiring you to remember to schedule it. At $249 per year for one system (additional systems at $229 each), the plan removes a common reason systems go years without service: it simply doesn’t get back on the calendar.

VIP Member Benefits:

Proactive scheduling: We reach out when it’s time for your next heating or cooling tune-up
15% discount on repairs throughout the year
Priority Customer Status ahead of non-priority service requests
Inflation protection on your plan rate
Transferrable agreement if you move or sell your home

Financing options are also available through Reliable Air for customers who need flexibility.

Our team has been servicing homes and businesses in San Marcos and Hays County since 1996. With same-day availability, 2-hour scheduling windows, and a technician call before we arrive, getting your air conditioning maintained is straightforward. Call (512) 580-8837 or book online to get your system inspected before the next heat wave hits.

Why Choose Us?

As times get tough, other companies cut corners. But we decided to stay reliable for over 30 years. Call us and you'll get:

Reliable Relationships
Many of our employees stay for 10+ years. So you'll always hear a familiar voice on the phone or see a familiar face at your door.
Reliable Scheduling
With same-day service and 2-hour scheduling windows, you'll get service at a time that's convenient for you.
Reliable People
Since we constantly train our employees, you can be 100% confident that your job will be done right—the first time.

Ready? Y'all Give Us a Ring! (512) 580-8837

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