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Expert Plumbing & Air Solutions

Dedicated to providing San Antonio with top-notch plumbing and air conditioning services. Our skilled team ensures reliability and quality in every job.

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New Branch, Trusted Technicians

While the San Antonio branch of Radiant® Plumbing and Air Conditioning is a newer addition to the Radiant Plumbing and Air family, it carries with it a legacy of local expertise and trust. By working with the well-respected local company Schmidt Electrical, we’ve ensured that the same skilled technicians who’ve been serving San Antonio homes for years continue to do so, now under the renowned Radiant brand. This merger combines local know-how with the established reputation of Radiant, solidifying our place as the most trusted plumbing, A/C, and drains service provider in Central Texas. We’re proud to bring our high standards and customer-centric approach to every home in San Antonio.


There When You Need Us

In the heart of Stone Oak, Alamo Ranch, or Helotes and facing a home emergency? Our skilled technicians in San Antonio are equipped for rapid, efficient plumbing and HVAC interventions. We bring years of expertise to every urgent repair, ensuring prompt, professional solutions in your neighborhood. Act now for fast, dependable service – Radiant Plumbing and Air is just a call away.

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San Antonio’s Finest

Our excellence shines through our numerous awards and accreditations we’ve earned in San Antonio and beyond.

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Join Radiant San Antonio

Being part of our employee family is rewarding, fun, and fulfilling. Hear from our team members as they share what they enjoy most about working at Radiant.


San Antonio's Helping Hands

In San Antonio, Radiant Plumbing and Air is more than a service provider; we’re a community ally. Our commitment to giving back mirrors the city’s ethos of neighborly support. Through charitable contributions and community initiatives, we help local charities and families in need. We’re passionate about creating meaningful change and continually seek opportunities to extend our impact within San Antonio and beyond. Your suggestions for community involvement are always welcome, as we strive to be a force for good in our beloved city.

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Home Repair Services blog

Expert Advice

Gain invaluable home repair tips, expert advice for system longevity, and stay updated with the latest news and updates from Radiant Plumbing and Air.


Frequently Asked Questions

At Radiant Plumbing and Air, we proudly serve a wide range of neighborhoods across San Antonio. From the bustling streets of Stone Oak and Alamo Ranch to the serene settings of Helotes and Leon Valley, our services extend to diverse communities. We also cover areas like Bulverde, Schertz, and Cibolo, ensuring that whether you’re in the heart of the city or on its outskirts, our team is ready to meet your home service needs. Our commitment is to provide top-quality plumbing, HVAC, and air quality services to nearly every home in San Antonio, regardless of location.

Absolutely! In San Antonio we’re excited to introduce our new Radiant Care Club home maintenance program. This program is designed to give homeowners peace of mind in maintaining their home’s major systems, from plumbing to air conditioning. With our Radiant Care Club, you can subscribe to a low monthly payment plan that covers regular inspections and maintenance. It’s perfect for those unseen essentials, like water pipes, or often-overlooked services, like regularly flushing your water heater. Trust Radiant Plumbing and Air in San Antonio to keep your home running smoothly with reliable, expert care.

Radiant Plumbing and Air proudly serves the greater San Antonio area, offering comprehensive home service repairs to homeowners. Our expertise spans from A/C systems to water softeners and mainline drains. If anything goes awry in your plumbing, heating, or A/C systems, you can rely on Radiant San Antonio for a prompt and reliable solution. With over 30 years of dedicated service to San Antonio homeowners, you’ll be delighted you chose us for assistance.

Yes, we do! In San Antonio, we recognize that unexpected repairs in aging homes can be costly. Whether it’s emergency plumbing repairs, water heater replacements, or any other service, we understand the financial burden it can pose. To support our homeowners, we offer affordable financing options. No matter the issue, we work with you to ensure your home repair needs are met without financial stress. Feel free to discuss financing options with us to find a solution that fits your budget.

At our San Antonio branch, we specialize in services for grounded properties, including homes in neighborhoods like Stone Oak, Alamo Ranch, and Helotes. For mobile homes or RVs, we recommend consulting with a specialized RV Technician, as RVs have different regulatory requirements compared to traditional homes. Our focus is on providing top-quality plumbing and HVAC services tailored to the specific needs of San Antonio’s residential properties.

Our San Antonio team operates with full licensing and insurance for your peace of mind. Our Master Plumbing License #M-18951 and HVAC Licenses #TACLB76656E, TACLA11368E are a testament to our professional qualifications. We take pride in our thousands of positive reviews on Google and Facebook, reflecting our commitment to customer satisfaction in San Antonio. Feel free to explore our reviews page to read heartfelt testimonials from our customers over the past 30 years, showcasing our dedication to quality service.

Schmidt Mechanical, now known as Radiant Plumbing and Air – San Antonio, has a rich history rooted in the San Antonio community. Founded by native San Antonian Keith Schmidt, a graduate of Alamo Heights High School and Southwest Texas State University, the company started with Keith’s deep passion for air conditioning and heating. Initially focusing on commercial HVAC systems, Keith, alongside co-owner and wife Heather Schmidt, grew the company into a reputable AC & heating service provider. Serving areas including San Antonio, Alamo Heights, and Terrell Hills, Schmidt Mechanical has been synonymous with consistency, honesty, professionalism, and a stellar reputation. Our team, with years of experience in HVAC services, continues this legacy under the Radiant Plumbing banner, and are proud to continue to provide top-notch installation, repair, and 24/7 emergency services for homes across San Antonio.

Our Services

Repair, Install, Service & More

Air Conditioning

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

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

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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 Austin home, blending professional care with a touch of local charm.

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