Radiant Plumbing & Air Conditioning

San Antonio Plumbing & HVAC Professionals

Serving San Antonio homeowners with licensed technicians, quality workmanship, and dependable service you can count on.

Call 24/7

Licensed technicians, guaranteed
service - even on weekends!

Home Comfort Guarantee

We stand behind the HVAC,
plumbing, electrical, and drain
work we do on your home.

No Surprise Fees

Clear, upfront pricing with no
hidden fees, even for weekends
and holidays.

Easy Financing Options

Enjoy no interest when
paid in 6 months.

Available 24/7

San Antonio Heating, Cooling, & Plumbing

Just Call Radiant.

Expert Repairs, Honest Service, No Guesswork

Straight answers, solid work, and a team that follows through with no runaround and no guesswork.

Serving Austin & San Antonio

Trusted by homeowners across Austin and San Antonio for reliable plumbing and HVAC work, built on decades of consistent service and long-term relationships.

Scheduling Around You

Flexible appointments with weekend availability mean you’re not stuck waiting around for us, we show up when we say we will.

Honest Pricing, No Guesswork

Upfront recommendations and transparent pricing, with no pressure, just clear options so you can make the right call for your home.

Backed by our Home Comfort Guarantee, just one more reason to call Radiant.

San Antonio Plumbing & HVAC

Backed by Our Home Comfort Guarantee

Every repair and installation is performed by licensed professionals and backed by our Home Comfort Guarantee. If something isn’t right, we make it right. That’s our commitment to quality workmanship, clear communication, and long-term reliability for your home.

SAN ANTONIO SERVICE AREA

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

Deals & Offers

HVAC, Drains, & Plumbing Specials

$50 Off Any Service

Expires: 12/31/2026

Up To $250 Off A New Tank Water Heater

Expires: 12/31/2026

$99 Water Heater Flush and Safety Check

Expires: 12/31/2026

$83 Drain Clearing or It’s Free

Expires: 12/31/2026

Radiant Reviews

Always 5-Star Service

We’ve been in business since 1984, so we have made thousands of San Antonio homeowners happy. Explore some of our latest reviews.

Awards & Accreditations

San Antonio's Finest

Radiant has earned the trust of the community, being recognized with the following awards and certifications.

San Antonio Plumbing & HVAC

Your Reliable San Antonio Experts in Plumbing, Heating, & Cooling

Radiant Plumbing & Air Conditioning provides licensed plumbing and HVAC services throughout San Antonio and surrounding communities. When you call, you can expect clear communication, accurate diagnostics, and professional recommendations backed by our Home Comfort Guarantee. From routine repairs to urgent system failures, our team is committed to doing the job right.

Plumbing Services

Our licensed plumbers handle residential repairs, system replacements, and long-term plumbing solutions across San Antonio and nearby communities. Every visit includes a thorough inspection, upfront recommendations, and workmanship backed by our Home Comfort Guarantee.

Drain Cleaning & Clog Removal

Slow drains and recurring clogs are common in South Texas homes. We use professional-grade equipment to fully clear blockages, identify underlying causes, and help prevent repeat issues — not just temporary fixes.

Water Softener Systems

Hard water is a widespread concern throughout the San Antonio region. We install and service whole-home water treatment systems designed for long-term protection, helping reduce scale buildup and extend the life of plumbing fixtures and appliances.

Air Conditioning & Heating

San Antonio’s extended cooling seasons place heavy demands on HVAC systems. Our licensed technicians provide detailed system evaluations, accurate diagnostics, and repairs or replacements designed for long-term performance — all backed by our Home Comfort Guarantee.