A/C Replacements

Expert A/C Replacement and Repair Services

Delivering exceptional air conditioner solutions to homes across Central Texas since 1999. Our team specializes in energy-efficient heating and cooling for your home’s comfort in every season.

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Air Conditioners

Your Trusted HVAC Specialists

Are hot summer temperatures making your home uncomfortable? Is that little window unit just not getting the job done? At Radiant® Plumbing and Air Conditioning, we are here to help! We’re the best A/C installation professionals across central Texas.

Whether you’re looking to replace your current central air conditioning unit or fully install a central HVAC system, we’re the team for the job.

We offer a full line of air conditioning installation, maintenance & repair, no matter the problem or time of year. You can count on the trusted HVAC professionals at Radiant for exceptional service & quality craftsmanship.

The Radiant Difference

Expertise and Integrity at Work: Home Repairs by Radiant

At Radiant, we set new benchmarks in home care excellence. From your first call to our final follow-up, our expert technicians are committed to ensuring your complete satisfaction and earning your trust with every step.

Decades of Excellent Service

Since 1999, homeowners in Central Texas have relied on Radiant for top-tier plumbing and HVAC solutions. Our longstanding presence in Austin and San Antonio underpins our deep commitment to quality and customer satisfaction.

Dependable, Flexible Scheduling

Your time is valuable. That's why we offer flexible scheduling options to fit your life, not the other way around. Whether it’s an emergency or routine maintenance, our 24/7 availability ensures that we are always there when you need us.

Transparent Pricing

At Radiant, we believe in solving your problems without pushing unnecessary services. Our transparent pricing and honest service approach are why thousands of customers have trusted us for over two decades, celebrating our integrity in countless reviews.


Radiant Branches

Lone Star Locals

Radiant Plumbing and Air Conditioning operates across Austin and San Antonio, keeping over 10,000 homeowners happy with home repairs, installations, and maintenance. 

Austin, TX

A map showing the area of Austin that Radiant serves

San Antonio, TX

A map showing the area of San Antonio that Radiant serves
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Your Home A/C & Heating Experts

Ready to elevate your home’s comfort? Discover a variety of services beyond heating repairs that cater to your every need. Explore the full range by clicking the links below:

Call or Schedule Your Service Online!

Air Conditioners

Frequently Asked Questions

If you’re unsure when to replace your home’s air filter, watch out for these telltale signs indicating it’s time for a replacement. These indicators shed light on the crucial role air filters play in enhancing your home’s comfort and how a small investment of time and money can yield significant improvements:

  1. Visible Dust Around Vents: It’s time to replace your filters when you can see visible dust accumulating on and around vents.
  2. Dirty or Clogged Filter: A visibly dirty or clogged filter should be replaced promptly.
  3. Extended Heating/Cooling Cycles: Longer HVAC cycles signal reduced airflow due to a clogged filter.
  4. Higher Energy Bills: Increased energy consumption may result from a clogged filter.
  5. Declining Indoor Air Quality: Worsening air quality suggests an overdue filter replacement.
  6. Hot A/C Unit: Excessive heat from the A/C unit indicates restricted airflow, often due to a dirty filter.
  7. Uncertain Last Replacement: If you’re unsure when the filter was last changed, it’s likely overdue and time to be replaced.

The time it takes to install a new A/C system in your home can vary depending on several factors, including the complexity of the installation, the size of the unit, and whether other HVAC components are being replaced simultaneously. Here’s what you can typically expect:

  1. Replacement Only: If you’re solely replacing the air conditioning unit, the installation process typically takes between 4 to 8 hours on average. Our experienced technicians at Mainstream are trained to work efficiently while ensuring the highest quality installation standards.
  2. Replacement of Furnace and A/C: If you’re upgrading both your furnace and air conditioning unit concurrently, the installation timeline may extend to between 8 to 14 hours. This is because the installation involves additional steps such as removing and replacing both systems, ensuring compatibility, and making necessary adjustments for optimal performance.
  3. Minimal Disruption: We understand the importance of minimizing disruption to your daily routine during the installation process. Our team works diligently to ensure that the installation is carried out smoothly and efficiently, allowing you to enjoy your new air conditioning system as soon as possible.
  4. Customer Satisfaction: Your satisfaction is our top priority at Mainstream. We strive to exceed your expectations by delivering exceptional service from start to finish, including timely installation, thorough testing, and clear explanations of how to operate and maintain your new A/C unit.
  5. Post-Installation Support: After the installation is complete, our team remains available to address any questions or concerns you may have. We are committed to providing ongoing support to ensure that your new air conditioning system continues to perform optimally for years to come.

Experience the difference with Mainstream’s professional HVAC installation services. Contact us today to schedule your air conditioning installation or upgrade and enjoy reliable comfort in your home.

There are common warning signs you should know to look for, even if your HVAC system is still blowing air. If you notice any of the following, a problem may be present & it’s time to call the professionals at Radiant for air duct cleaning services:

Unexplained Sneezing and Congestion

Are you having breathing issues at home? Coughing? Sneezing? Congestion that doesn’t go away if you take allergy medication. As debris, mold, and dust accumulate in your ductwork, you breathe that in whenever you run the heat or A/C. This could be causing issues that mimic traditional allergies. If you notice unexplained cold-like symptoms, it may be time to get your ducts cleaned by Radiant.

Increased Energy Bills

If you notice a change in how your air is running, or your HVAC systems are having to stay on over extended periods of time, you may need to have your air ducts cleaned.

Unsure? One of the first places you’ll notice you need air duct cleaning is on your energy bill. When air duct cleaning doesn’t take place regularly, your HVAC systems will work less efficiently & leave a dramatic increase on your monthly energy bill.

It’s Been Years Since Your Last Duct Cleaning

You should get your ducts cleaned every three to five years. Most experts – including the National Air Duct Cleaners Association (NADCA) – recommend this time frame depending on how often you use your HVAC system throughout the year, if you have pets, or if you’re prone to allergies and colds.

No matter the problem, our expert duct cleaning technicians can determine what needs to be done before any work has started, so you know exactly what solution is best for your air duct system.

A/C Installation

Reliable Air Conditioner Replacement and Repair in Central Texas

San Antonio and Austin summers are notoriously hot. When your air conditioner sputters out, it can quickly become unbearable. Here at Radiant Plumbing and Air Conditioning, we understand the urgency of a functioning AC unit. We offer fast, reliable air conditioner replacement and repair services in San Antonio and Austin to get your home cool and comfortable again,

Why Choose Radiant for Your Air Conditioner Replacement and Repair?

At Radiant, we understand the importance of a cool and comfortable home environment, especially in the unforgiving Texas heat. Since 1999, we’ve built a reputation for excellence in air conditioning installation, prioritizing customer satisfaction and quality service. Here’s what you can expect when you choose Radiant:
  • Expert Advice and System Selection: Our experienced technicians will assess your home’s specific needs, recommending the most suitable air conditioner for optimal performance and efficiency.
  • Skilled Installation: Our certified technicians are highly trained in air conditioner installation, ensuring a flawless and meticulous job. They follow industry best practices and utilize state-of-the-art equipment for a perfect fit and optimal efficiency.
  • Competitive Prices and Transparent Quotes: We offer upfront and transparent pricing, so you know exactly what to expect before we begin the installation process. There are no hidden fees or surprises.
  • Fast and Efficient Service: We understand the urgency of a malfunctioning AC unit, especially during a Texas heatwave. That’s why we prioritize quick response times and efficient installation to restore your comfort as soon as possible.
  • Post-Installation Support: We don’t disappear after installation. Our team is always available to answer your questions and provide ongoing support to ensure your new AC unit operates flawlessly.

Benefits of a New Air Conditioner Installation

Investing in a new air conditioner offers several advantages:

Schedule Your Consultation Today

Don’t let a broken AC unit disrupt your Texas comfort. We’ll get your home cool again quickly with our fast, reliable air conditioner replacement and repair services. We prioritize customer satisfaction and quality service, ensuring a cool and comfortable home for you and your family. Our expert technicians will guide you through the entire process, from system selection to flawless installation. Call Radiant today.