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When a burst pipe or overflowing toilet threatens your home, you need more than a quick fix – you need an expert who can act fast and get it right the first time. At Radiant Plumbing & Air Conditioning, our licensed emergency plumbers are on call 24 hours a day to handle any emergency San Marcos homeowners face. With decades of experience, we’ve seen it all—from late-night leaks to major sewer backups—and we know how to deliver lasting solutions under pressure.
Most plumbing disasters don’t happen overnight, they build up silently over time. Radiant’s Care Club helps San Marcos homeowners catch small issues before they turn into costly emergencies. With annual plumbing inspections, water heater flushes, and leak checks, our licensed plumbers keep your system running smoothly year-round. Plus, members enjoy no dispatch fees, 10% off repairs, and priority scheduling when unexpected problems do arise. It’s the simplest way to protect your home, save money, and keep plumbing emergencies from ever disrupting your peace of mind.
When plumbing emergencies strike, the last thing you need is uncertainty. That’s why Radiant Plumbing & Air Conditioning backs every repair with our Home Comfort Guarantee
. From upfront pricing with no hidden fees to satisfaction and leak guarantees, we make sure San Marcos homeowners know exactly what to expect—reliable service and lasting results. Whether it’s a midnight pipe burst or an urgent sewer backup, our licensed plumbers respond with skill, integrity, and a promise: if it’s not done right, we’ll make it right. Because in an emergency, your peace of mind matters just as much as the fix.
We proudly service the following cities and neighborhoods across San Antonio, TX:
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Plumbing emergencies don’t keep office hours—and in San Marcos, a burst line or sewer backup can escalate from nuisance to serious property damage fast. That’s why Radiant’s 24/7 emergency plumbing team is always ready to respond. Our licensed, background-checked plumbers know the area inside and out—from slab-on-grade homes near the river to student rentals by Texas State and newer communities like Blanco Vista, TRACE, and La Cima. We show up quickly, fully stocked, ready to diagnose the issue, protect your home, and provide clear, upfront pricing before any work begins.
From burst or leaking pipes caused by pressure spikes to slab leaks that show up as warm floors or sky-high water bills, our team handles every situation with precision. We’re also here for overflowing toilets, mainline stoppages, water heater failures, gas leaks, and flooding after heavy storms. In “Flash Flood Alley,” older sewer laterals can struggle under sudden rainfall—our sewer camera inspections and hydrojetting services clear out blockages and scrub pipe walls clean, so you’re not facing the same clog a week later.
If your water heater fails, we secure the unit, install a leak pan or safety drain as needed, and can provide a temporary solution while measuring for a lasting replacement. We also inspect pressure-reducing valves and thermal expansion systems to stop repeat leaks before they start.
And for San Marcos businesses, we bring the same level of care and urgency. Whether it’s a restaurant kitchen, retail restroom, or office mop sink, we keep your plumbing operational, code-compliant, and downtime to a minimum. Every service includes clear communication, photos of our findings, and repair options that respect your schedule and budget.
Plumbing isn’t the only emergency we can resolve. Explore some of our other Radiant services:
Need help right now? Call and get a rapid dispatch, transparent pricing, and clean, code-compliant repairs that protect your home or business. From The Square to Spring Lake, We Answer the Call.
