AC Installation and Replacement in San Marcos, TX

Providing Reliable A/C Installs In Unreliable Times

As times get tough, other companies cut corners. But we decided to stay reliable—for over 20 years. Call us for A/C installs and you'll get:

  • Reliable people—Since we constantly train our A/C install techs, you can be 100% confident that your job will be done right—the first time.
  • Reliable financing— High credit score? Low credit score? We can help people with either!.
  • 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.
Online Special

Save $500 on Your A/C Installation

Schedule today and you'll get $500 off select high-efficiency systems.

How to redeem: Just mention the deal to your technician. No need to print!


Cost of an A/C installation in San Marcos, TX

Low Price$2,500
Average Cost$5,500
High Cost$7,500+

Want an accurate install price?

Contact us for an in-home estimate (it's free)

Service Area

Providing A/C installs to San Marcos and these areas

  • Canyon Lake
  • Cibolo
  • Fischer
  • Garden Ridge
  • Luling
  • Lockhart
  • Kyle
  • Manchaca
  • New Braunfels
  • Schertz
  • Seguin
  • Universal City
  • Wimberley
Reliable Air Texas
How It works

How we work in 5 easy steps

  1. Schedule your estimate

    Schedule an in-home estimate online or call us at 512–396–8183. We schedule service in 2-hour windows, so you'll know around the time we'll arrive.

  2. Notify you before we arrive

    Your technician will call you when they're 30 minutes away, so you don’t have to wait around all day.

  3. Give you a price

    Once your tech arrives, they’ll investigate your A/C system and do the calculations needed to determine the system size you need. Then, you'll get a price quote.

  4. Install your system

    We can usually get an installer to your home within 2 days to install a new air conditioner. If we can't get to you in time, we'll provide temporary air conditioning or put you up in a hotel up to 3 days.

  5. Make sure you're happy

    We don't just dine and dash. After the installation, we call to get your feedback so we can ensure you're 100% satisfied.

How we work
Customer Reviews

See A/C Installation reviews from Texas homeowners

5 stars on Yelp
4.9 stars on Google

"They are friendly and customer-oriented"

"We have been a customer of Reliable Air since 2009 and will not use any other company. They are friendly and customer-oriented and will work on an issue until it is resolved to your satisfaction. Their technicians are professional and knowledgeable. Our technician is Toby and he is very thorough and follows through on his work. We did renovations on our home a few years back and requested our contractor to use Reliable Air for any HVAC work."

-J & M.

"Respectful, honest and knowledgable"

"Steve T. Arrived in a timely manner, he was very respectful, honest and knowledgable. I would definitely recommend Reliable Air. Thank you!"

-Lindsey M.

Our 100% satisfaction guarantee

We do whatever it takes to make you happy (like, 3-day weekend happy). So, if you have any issues with our A/C installation, we'll make it right—even if that means giving you your money back.

Reliable Air Van

Ready? Y'all give us a ring!