San marcos, TX

From New Installs to Fast Fixes Radiant is Your Home Service Specialist

Transform your home with premier A/C, plumbing and heating services from Radiant® Plumbing & Air Conditioning – San Antonio.

Plumbers & HVAC Contractors

Reliable, Year-Round Service in San Marcos

From ensuring your HVAC system operates at peak efficiency to safeguarding your plumbing infrastructure against leaks and clogs, our team is equipped to handle it all. Whether it’s a faulty furnace in need of replacement, a malfunctioning air conditioning unit requiring repair, or a water softener installation to combat hard water issues prevalent in the area, we have the expertise to deliver lasting solutions.

Experience the difference that expert home service, repair, and maintenance can make. Contact Radiant San Antonio today to schedule your appointment and take the first step toward a more comfortable, efficient, and enjoyable home environment.

Radiant Offers

Special Offers and Coupons

Available 24/7

Plumbing & HVAC Services in San Marcos

Air Conditioning

From tiny tweaks to big emergencies, our expert crews have the skills to keep you chill.

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Heating

From air conditioning and indoor air quality to heat pumps, furnaces and more–Radiant has you covered.

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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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Maintenance Plan

Our membership program is crafted to offer peace of mind and comfort to every San Antonio home, blending professional care with a touch of local charm.

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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 Excellence in Home Services

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.

Home Maintenance Plans

Radiant Care Club

Experience peace of mind and hassle-free home maintenance with Radiant Care Club in San Marcos, TX. Our exclusive membership program offers year-round maintenance for your HVAC and plumbing systems, ensuring optimal performance and efficiency. With Radiant Care Club, you’ll enjoy priority service, discounts on repairs, and scheduled maintenance visits, all backed by our years of expertise and thousands of satisfied customers. Elevate your home comfort experience and protect your investment with Radiant Care Club. Join today and let us take care of your home, so you can focus on what matters most.

Call or Schedule Your Service Online!

210-294-6703

Ashley Karstedt a day ago

Radiant plumbing is always coming through for me and my clients. As a Realtor, time is always of the essence and I’m so grateful for how responsive and informative they are. Brian helped out my clients today and was fantastic!

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Cem Gundoz 3 days ago

wonderful and professional service. a real human answered the phone

Response from business owner

We appreciate your positive feedback. Our team strives for professional and personal service.

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Rob Norris 5 days ago

Joe did outstanding work. Incredibly professional, knowledgable, and friendly. Couldn't ask more from a plumber.

The organization overall was also a well-oiled machine. I submitted my work request late at night and Joe was at my house …

Response from business owner

We appreciate your positive feedback about Joe and our efficient service. Thank you for choosing us for your plumbing needs.

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Dude Of Destruction 6 days ago

The tech was great, explained everything well. He did a great job.

Response from business owner

We appreciate your positive feedback. Our team strives to provide clear and efficient service.

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Stella Gutierrez 6 days ago

Radiant continues to be a blessing to my house. Their technicians are extremely professional, knowledgeable and efficient. Troy the tech who serviced our unit today, was extremely thorough in accessing our unit and its performance. A …

Response from business owner

Thank you for your review! We are happy to serve you.

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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 marcos TX

Plumbing and HVAC Issues? Don't Sweat It -Radiant is Here to Help!

Experiencing Unexpected Plumbing Breakdowns?

When plumbing issues strike, they disrupt your daily routine and can cause significant inconvenience or even damage to your home. Whether it’s a clogged drain, a leaking pipe, or a malfunctioning water heater, the stress and potential costs can escalate quickly.

Stay Cool and Comfortable All Year Round

In San Marcos, TX, where temperatures can soar, having a reliable air conditioning system isn’t just a luxury—it’s a necessity. Don’t let a malfunctioning AC unit leave you sweating during a heatwave or shivering if your heater goes out.

Radiant Plumbing Solutions

At Radiant, we provide a comprehensive range of services that cover everything from routine maintenance to emergency plumbing repairs. Our skilled technicians are equipped to handle:

Plumbing Repairs and Installations: Quick and effective plumbing solutions to keep your water flowing and your pipes in perfect condition.
Air Conditioning and Heating Services: From new installations to repairs and regular maintenance, we ensure your heating and cooling systems are efficient and reliable.
Water Quality Solutions: Installation and maintenance of water softeners and treatment services to ensure your water is safe and clean.

Why Choose Radiant?

Rapid Response: Our local experts are available 24/7 to tackle any emergency—ensuring minimal disruption to your daily life.
Trusted Technicians: With years of experience and a reputation for quality, our professionals deliver service you can depend on.
Customer Satisfaction Guaranteed: We’re committed to providing not just services, but solutions that last, with customer satisfaction as our top priority.

Don’t wait for a small inconvenience to become a major headache. Call Radiant today to schedule a service or consultation, and discover why we are San Marcos’s trusted choice for plumbing and HVAC services. Your comfort is our commitment!