Emergency HVAC Services

Comprehensive Care and Repair For Your HVAC System

Same-Day Emergency Appointments Available – Give Us a Call

210-294-6703
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Emergency HVAC Solutions

Why Customers Choose Radiant For Their HVAC Needs?

  • Schedule 24/7 - we're here when you need it most!
  • Certified Technicians - licensed & insured!
  • Quick Repairs - done right!
  • Quality Service - you'll love!

Our skilled service technicians specialize in ensuring your HVAC system’s optimal performance with professional emergency services. When your HVAC system goes down, you need it fixed now – and we’re here for you! With Radiant, you can enjoy peace of mind knowing your essential heating and cooling systems are in expert hands.

Radiant technician repairing an HVAC unit in an attic

SPECIAL OFFERS

Radiant Savings & Offers

A/C Tune-up $79

Expires:  04/30/2026

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$50 Off Any Service

Expires:  12/31/2026

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5-Star Service

Real Reviews

John

Technician was on time, very professional & friendly upon arrival. He was thorough & diligent in the conduct of his effort to diagnose the AC issue. And he was methodical & complete in preparing my bill. I called Radiant late morning Saturday & technician arrived mid-afternoon! I’m a happy Radiant customer now!

Danny M.

Radiant reached out to me to do a free yearly inspection of my furnace and AC. I received a visit from Eric, who was extremely knowledgeable about my AC system and taught me a bunch of stuff I didn’t know.  I was impressed by the free inspection overall and thought Eric did a great job! Would definitely consider Radiant for future needs based on my interaction with them today.

Peter C.

Kevin Sanchez came by to fix my AC today and did an amazing job! He was quick, honest, friendly and professional. Highly recommend Radiant, and if you happen to call needing service, hopefully you are lucky enough to have Kevin on your service request!

Priscilla L.

I thought everyone that was involved in our new furnace and air conditioner was extremely through and professional!  In fact, we felt so comfortable with your service, we didn’t bother to get another bid!  All and all we are happy and hope you will help us take care of our new furnace and air in the future!! Thank you!!!

Tracy F.

I requested A/C service online at 3am this morning and Troy was at my door this afternoon with a smile!!! He came in and accessed the A/C system. He educated me on the condition of the unit and provided the best options for me. Troy is extremely professional, polite and knowledgeable!!! I feel confident in my decision to install a new unit with Radiant!!!

Dennis M.

The tech was very honest , sincere and knew his chosen field. Gave many suggestions about our furnace and a/c. Would call him back if needed. Very professional.

Peter F.

Alex was very professional and completed a thorough review of my HVAC system. Although I would have preferred that the system be repaired it just needed too much work and Alex was terrific in providing me with all my options. Thank you Radiant for your overall superior service.

Schedule Your Service - Give Us a Call!

210-294-6703

Radiant Isn't Just Emergency HVAC Services

Radiant technician repairing an HVAC unit in an attic

AC Repair

Quick and dependable repairs to keep your home comfortable.

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Plumbing

Like most people, you might not think much about your plumbing – until something happens.

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Drains & Sewers

Your drains are nearly invisible, but far from invincible. We’re here to help keep things flowing.

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Air Quality

Helping improve air quality in local homes is another reason Texans trust Radiant.

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Emergency HVAC

Frequently Asked Questions


Yes! Radiant Plumbing & Air Conditioning provides 24/7 emergency heating and cooling services in Austin and San Antonio. If your furnace fails in the middle of winter or your AC stops working during a heatwave, our expert technicians are ready to restore comfort to your home.

We provide a full range of heating and cooling services to keep your home comfortable year-round. In addition to
24/7 emergency HVAC repair, we offer:

No matter your heating and cooling needs, Radiant has the expertise to keep your HVAC system running smoothly.

Some of the most common HVAC emergencies include:

  • No heating or cooling – Your system won’t turn on, leaving your home uncomfortable.
  • Strange noises or burning smells – Loud bangs, grinding sounds, or unusual odors may signal a serious issue.
  • Refrigerant or gas leaks – Leaking refrigerant reduces efficiency, while gas leaks can be dangerous.
  • Frozen or leaking AC units – Ice buildup or water leaks can lead to system failure.
  • Weak airflow or uneven temperatures – Blocked ducts or compressor issues can cause inconsistent heating or cooling.
  • Short cycling – If your HVAC system frequently turns on and off, it may be overworking and wasting energy.

If you’re experiencing any of these issues, don’t wait. Call Radiant Plumbing & Air Conditioning for fast, reliable emergency HVAC repair.

Preventative maintenance is the best way to avoid unexpected HVAC failures. Here are a few ways to keep your system running efficiently:

  • Schedule routine HVAC maintenance – Regular tune-ups catch issues before they turn into costly repairs.
  • Change air filters regularly – A clogged filter can overwork your system and reduce airflow.
  • Watch for warning signs – Strange noises, weak airflow, and uneven temperatures should be checked right away.
  • Ensure proper thermostat settings – Prevent unnecessary strain on your system with correct settings.
  • Join the Radiant Care Club – Our maintenance program offers regular inspections, priority service, and repair discounts.

Call Radiant today to schedule preventative maintenance and avoid HVAC emergencies.