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San Marcos homes deserve more than cookie-cutter plumbing solutions—they need expert care rooted in local knowledge. At Radiant Plumbing & Air Conditioning, we’ve spent decades solving the unique challenges of San Marcos homes’ plumbing. From older homes near the historic district to modern builds along the I-35 corridor, our licensed plumbers understand the quirks of San Marcos systems inside and out. We don’t just repair—we educate, giving you clear explanations and honest options so you feel confident in every decision. Respecting your time, budget, and home is our standard. Whether it’s a dripping faucet, a major pipe replacement, or an emergency in the middle of the night, our 24/7 team is ready to deliver reliable service backed by a reputation San Marcos families can trust.
A dripping faucet or hidden leak shouldn’t turn into a costly surprise. With Radiant’s Care Club, San Marcos homeowners get proactive plumbing protection year-round. From free plumbing checkups and water heater flushes to leak inspections and fixture checks, our licensed pros make sure your system runs smoothly. You’ll also enjoy no dispatch fees, a 10% discount on plumbing repairs, and priority scheduling whenever issues arise. It’s the easiest way to protect your home, save money, and keep your plumbing working at its best—backed by the reliable service San Marcos families count on.
At Radiant Plumbing & Air Conditioning, we don’t just fix pipes—we stand behind every repair, replacement, and installation we perform in San Marcos homes. Our Home Comfort Guarantee means you’ll always receive upfront pricing with no hidden fees, skilled work from licensed technicians, and lasting solutions you can count on. From leak repairs to full plumbing installations, we back our work with clear promises, including satisfaction, install, and leak guarantees. If something doesn’t meet your expectations, we’ll make it right—because your peace of mind is as important as the plumbing itself.
We proudly service the following cities and neighborhoods across San Antonio, TX:
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When a plumbing issue pops up in San Marcos, you don’t need guesswork—you need a crew that knows our river city inside and out. Radiant brings veteran-employed craftsmanship, transparent pricing, and fast response to every job, from historic homes near The Square to new builds in La Cima, TRACE, and Blanco Vista. Hard water from the Edwards Aquifer is tough on fixtures and water heaters; we combat scale with smart water treatment, routine descaling, and honest guidance on repair vs. replace.
Living in “Flash Flood Alley” also means drains and sewers get tested. We use sewer camera inspections to pinpoint problems and then clear lines the right way with hydrojetting that scours pipe walls, not just poking holes through a clog. If a section is damaged, we’ll discuss trenchless options when feasible to protect landscaping and slabs. Leaky hose bibbs, running toilets after student move-ins, under-sink surprises before a weekend on the river… our licensed plumbers handle it all with clean, code-compliant workmanship (proper venting, accessible cleanouts, labeled shutoffs, and pressure regulation where needed).
Plumbing isn’t Radiant’s only specialty. Discover some of our other San Marcos services:
You’ll get clear diagnostics, competitive options, and a technician who explains everything clearly. That’s how we build trust, one visit at a time. Need service today? We Answer the Call.
