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San Antonio homes aren’t one-size-fits-all—and your plumbing service shouldn’t be either. At Radiant Plumbing & Air Conditioning, we bring local knowledge and decades of experience to every job. From aging cast iron lines in historic districts to high-pressure slab systems in new developments, we know the quirks of San Antonio plumbing inside and out. Our licensed plumbers don’t just fix problems; they explain them, giving you clear options and honest recommendations. We respect your time, your budget, and your home, arriving clean, prepared, and ready to do it right the first time. Whether it’s a small leak, a full repipe, or an emergency repair at 2 a.m., we’re here when you need us—backed by 24/7 service and a reputation San Antonio homeowners count on.
Say goodbye to surprise leaks and last-minute plumbing emergencies. The Radiant Care Club is San Antonio’s trusted home maintenance plan—designed to keep your plumbing system in top shape year-round. As a member, you’ll receive an annual plumbing check from one of our licensed experts, trained to catch small issues before they become expensive headaches. We’re talking water pressure tests, fixture inspections, drain checks, and more—all done with the precision and care Radiant is known for.
Plus, members skip the dispatch fee, enjoy 10% off most plumbing services, and get priority scheduling—even during peak season. Whether you live in a 1920s bungalow or a new build out past Loop 1604, the Care Club helps protect your investment and your peace of mind.
It’s one less thing to worry about—and one more way Radiant earns your trust every day.
When you invite Radiant into your home, you deserve more than just a quick fix—you deserve a promise. That’s why every plumbing, HVAC, and drain service we provide in San Antonio is backed by our Home Comfort Guarantee. We start with upfront pricing—no hidden fees, no surprises. Every technician is licensed, background-checked, and held to the highest standard of workmanship and care.
If you’re not 100% satisfied, we’ll make it right. And if we can’t? We offer a 10% inconvenience refund up to $1,000. From leak repairs and drain clearings to full HVAC installs, we stand behind every job—because our work isn’t done until your comfort is guaranteed.
When you choose Radiant, you’re not just choosing a service provider. You’re choosing a team that shows up, follows through, and earns your trust—every time.
We proudly service the following cities and neighborhoods across San Antonio, TX:
Not seeing your area? Give us a call at 210-294-6703
When you need reliable plumbers in San Antonio, Radiant answers the call with transparent pricing, respectful service, and workmanship that lasts. Our veteran-employed team knows local homes—from historic cottages near the Missions and King William to newer builds in Stone Oak and Alamo Ranch—and we’re just as comfortable supporting light commercial spaces along the way. Whether it’s a same-day repair or a planned upgrade, we keep your water moving safely and efficiently.
San Antonio’s plumbing has its own personality. Hard water from the Edwards Aquifer leaves scale in fixtures, water heaters, and tankless systems, so we prioritize descaling, anode inspections, and water softening to protect your investment. Slab-on-grade foundations make accurate leak detection essential; we use noninvasive methods to find and fix slab leaks before they damage flooring. Our “mild but spiky” winters can bring sudden freezes, where burst hose bibbs and exposed lines are common, so we install freeze-ready fixtures and insulation to prevent repeat emergencies. Heavy downpours along the Leon and Salado Creek corridors can stress drainage; we evaluate cleanouts, backwater prevention, and yard drains to keep backups at bay. For small businesses, we’ll handle grease trap compliance, commercial water heaters, and tenant-finish plumbing that meets code and keeps you open.
Radiant’s expertise goes far beyond plumbing. Explore some of our other services for San Antonio homes and small businesses:
From leak detection and repipes to fixture installs and water quality solutions, our licensed pros deliver clean, code-correct work the first time, backed by clear communication and options that fit your budget. Ready for a trustworthy plumbing partner in San Antonio? We Answer the Call.
