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.

Radiant technician walking around a work van

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.

Austin Service Area

Greater Austin & Beyond

We proudly service the following cities and neighborhoods in Austin, TX:

Not seeing your area? Give us a call at 512-265-6994


Greater San Antonio & Beyond

We proudly service the following cities and neighborhoods across San Antonio, TX:

Not seeing your area? Give us a call at 210-294-6703

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


The Radiant Difference

Discover The Radiant Difference

Experience unparalleled expertise, reliability, and skill in every home service we provide.

Decades of Excellence in Home Services

For over 20 years, Radiant Plumbing & Air has set the standard for professional home services. Our team of licensed and insured technicians brings unmatched expertise to every job, ensuring reliable repairs and maintenance. We're committed to excellence, and it shows in every task we undertake.

Dependable Service, Every Time

Trust is the cornerstone of our services at Radiant. We guarantee the reliability of our installations and repairs, conducted only by our fully licensed and insured professionals. With us, you can be confident that your home systems are in skilled hands.

Your All-in-One Home System Experts

Whether it’s plumbing woes or air conditioning tune-ups, Radiant Plumbing & Air covers it all. Our comprehensive equipment expertise means we’re equipped to fix all types of home systems. From routine maintenance to complex repairs, we handle every challenge with skill and efficiency.

The Radiant Plumbing team standing and leaning on work trucks


Your Home Heating & Cooling Experts

Unlock a world of home comfort with Radiant. We provide a spectrum of home services designed to elevate your living experience. Discover how we go beyond standard solutions, ensuring your living space is efficient, reliable, and perfectly suited to your lifestyle.

Call or Schedule Your Service Online!

Call or Schedule Your Service Online!

Call or Schedule Your Service Online!

Air Conditioners

Frequently Asked Questions

How do I know if my air filter needs to be replaced?

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.