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AC Repair in San Marcos, TX

Same-Day Air Conditioning Repair Services are Available!

When you need reliable ac repair in San Marcos from a company that has deep experience and a good reputation, get in touch with Reliable Air. In the tough heat of our central Texas climate, a property owner needs to be confident the job will be done both correctly and quickly. 

With us, home and business owners can find the kind of service they are looking for. For over 25 years, thousands of people, and businesses, in San Marcos and beyond, have trusted Reliable Air to get their air conditioning systems fixed efficiently. Our track record of good reviews speaks for itself.


Call (512) 580-8837 or contact us online to schedule a free estimate for AC repair in San Marcos!


  • 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.

Signs Air Conditioning Repair Is Needed

It is important to recognize the signs that an air conditioning system needs to be repaired. The sooner an experienced San Marcos AC repair tech can be on the scene, the better the odds of a cost-efficient solution. 

Here are some of the common warning signs: 

  • Inadequate cooling: If the air conditioner is struggling to cool down even one room, it may indicate a more serious problem. A good DIY step is to check the vents and see if a simple cleaning might do the trick. If that doesn’t work, it’s time to call in a professional. 
  • Strange noises or smells: Unusual noises coming from ducts or components may signify an internal issue with the AC unit.
  • High energy bills: If the bills are higher than normal without any logical explanation, this could be due to an increase in electricity usage caused by a malfunctioning air conditioner. It may be wise to call a professional before the problem becomes worse. 
  • Limited airflow: Poor airflow can lead to many problems with cooling efficiency, and the overworking of other parts of the system. 

Reliable Air can be reached by calling (512) 580-8837 or through filling out our online contact form. Free estimates available. 


The Most Common AC Issues & How to Troubleshoot Them

At Reliable Air, we understand that AC issues can arise unexpectedly, especially in the hot and humid climate of San Marcos, TX. Here are some common AC problems that homeowners face and some troubleshooting steps you can take.

However, please note that for complex or potentially dangerous issues, it is always best to contact a professional HVAC company like Reliable Air for assistance.

Insufficient Cooling:

  • Check the thermostat settings to ensure it's set to "cool" and the desired temperature is lower than the current room temperature.
  • Clean or replace the air filters if they are dirty or clogged, as this can restrict airflow.
  • Ensure that the outdoor unit is free from debris and the indoor vents are open and unobstructed.
  • If the problem persists, it's time to call a professional HVAC technician to diagnose and fix the underlying issue, which could be a refrigerant leak, faulty compressor, or other technical problems.

Poor Airflow:

  • Examine the air filters and clean or replace them if necessary.
  • Check the vents and registers throughout your home to make sure they are open and not blocked by furniture or other objects.
  • Check ductwork for signs of leaks or damage.
  • If you've tried these steps and the airflow is still weak, it may indicate a more significant problem with your AC system, and it's best to contact our team for further evaluation and repairs.

Noisy Operation:

  • Pay attention to any unusual sounds coming from your AC system, such as banging, clanking, or squealing noises.
  • Check if there are loose parts or debris trapped in the system, which can cause rattling or grinding sounds.
  • Ensure that the outdoor unit is level and the fan blades are clean and intact.
  • While you may be able to identify and address minor noises, it's advisable to contact our professional technicians if the problem persists or if you suspect there may be internal mechanical issues that require expert attention.

Frequent Cycling:

  • Verify that the thermostat is functioning correctly and set to the desired temperature.
  • Replace and clean the air filters as needed.
  • Ensure that the condenser unit is not obstructed by vegetation or debris.
  • If your AC system continues to cycle on and off frequently or shows irregular patterns, it could indicate a faulty thermostat, refrigerant leak, or an issue with the electrical components. In such cases, it's recommended to call Reliable Air to diagnose and resolve the problem.

Remember, while troubleshooting steps can sometimes resolve minor AC issues, it's crucial to know your limitations. If you encounter complex issues, electrical problems, refrigerant leaks, or if troubleshooting steps do not resolve the problem, it's best to contact our team at Reliable Air.  

Our experienced technicians have the knowledge, skills, and tools to diagnose and repair AC problems safely and efficiently, ensuring your comfort during those scorching summer days.

Signs You Need Emergency AC Repair

When your air conditioning system malfunctions, especially during the scorching heat of San Marcos, TX, it can be incredibly uncomfortable and even pose health risks. Recognizing the signs that indicate the need for emergency AC repair can help you take immediate action and restore comfort to your home. 

If you experience any of the following signs, don't hesitate to contact Reliable Air for prompt and reliable emergency, same-day AC repair services:

  • Complete AC system failure
  • Strange or burning odors
  • Unusual noises
  • Rapid cycling on and off
  • Tripped breakers or blown fuses
  • Insufficient cooling
  • Water leaks

When any of these signs occur, it's crucial to contact Reliable Air for emergency AC repair services in San Marcos, TX. Our team of experienced technicians is available to diagnose and resolve AC issues promptly, ensuring your comfort and the smooth operation of your AC system.

Why Choose Us For Air Conditioning Repair Services in San Marcos?

We know a lot of people, including many of our customers, are very handy around the house. 

That said, and acknowledging our own professional bias, there are several good reasons why getting professional help is the better solution: 

  • Professionals have experienced hands-on training that has prepared us for most any situation. The likelihood of having the problem fixed the same day is increased when an experienced tech is called to the scene. 
  • DIY efforts can lead to mistakes, which can cost substantial amounts of money to fix—which in turn, ironically, undercuts the very rationale of DIY to begin with. 
  • All people are different, but we feel safe in saying that everyone has better things to do with their time than poke around an air conditioning system. There’s family, friends, and hobbies. Businesses have other things they, and their employees can be doing. Give us the responsibility of keeping you cool and comfortable while you do them. 

Call our office today at (512) 580-8837 or contact us online and let us go to work for you.


    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. 3 years of frustration cured in under an hour!

    Chance S.

    Geoff came to fix our toilet that's been acting up for a couple of weeks now. He did a great job and was very professional. He was very kind and helpful. Thanks again for the great service!

    Michelle M.

    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. Thank You Geoff and Cheryl!!

    Lisa R.

    As a contractor myself, I’ve worked with Reliable on several projects in the past. Knowing their quality of work, when I needed work on my own home I knew who to call. Arrived on schedule. Diagnosed to problem and fixed it quickly. Travis was friendly and helpful and answered my questions. I would recommend them to anyone.

    James B.

    Andy was extremely polite, helpful, and transparent. Reliable Air was able to accommodate my crazy work schedule to service my a/c unit. I am super grateful.

    Jennifer S.

    When I called to request service they were able to send someone out that same day. 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. He finished quickly and explained the invoice. Great job!

    Esther T.

    Joseph was very knowledgeable and quick to respond. 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. Thank you Joseph for being so kind and understanding. I will use you guys again in the near future!

    Anna A.

    Reliable Air off always does an excellent job of kit cleaning and servicing my air conditioner and heater. I always call them. They will mail you a reminder that it’s time to have it done again and that is very helpful.

    Connie D.

    Our family has been a customer of Reliable Air for a number of years. Our service tech today was Edgar A. he was prompt and very polite. Edgar explained in detail what he would be doing, along with the issue he found in terms that any home owner would understand. I highly recommend their service. Great job Edgar!

    Steve S.

How Our Process Works

1. Schedule Your Repair - We make it easy for you to schedule your duct repair service. Just give us a ring at (512) 580-8837 or use our online appointment scheduler. We offer 2-hour scheduling windows. We will send you a confirmation, so you’ll know when we’re arriving.

2. Notify You Before We Arrive - Your service technician will call you when they’re 30 minutes out. This way, you won’t have to wait around, wondering when they’ll get there.

3. Give You a Price - Prior to your service, your technician will inspect the areas that need repairing. They’ll also provide you with upfront and transparent pricing, so you never have to worry about receiving a surprise bill.

4. Complete Our Work - Once you’ve signed off on the quote, your technician will get straight to work. They’ll also let you know how long the service will take, so you can have peace of mind about how long they’ll be working in your home.

5. Make Sure You're Happy - No matter the job, each member of our team values efficiency and a job done right. To ensure that we lived up to your expectations, we’ll request feedback on our performance after the job is complete. We have a 100% satisfaction guarantee— and we mean it.

Ready for Reliable Service? Fill Out the Form Below or Call (512) 580-8837
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