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Whether it’s a slow-draining shower or a kitchen sink that’s completely backed up, Radiant Plumbing & Air Conditioning is here with fast, effective drain cleaning for San Antonio homes. We’ve cleared thousands of clogs across the Alamo City, from vintage pipes in older neighborhoods to stubborn buildup in modern kitchens. Our licensed plumbers come prepared with professional tools—not store-bought chemicals—and the experience to diagnose the real cause of the clog.
We’ve worked in every type of San Antonio home, from historic properties with aging lines to modern builds with complex plumbing systems. And if a clog turns out to be part of a larger sewer line issue, we have the tools and training to handle that too.
No matter the cause, we’ll explain what’s going on, provide clear pricing, and treat your home with the respect it deserves. When you call Radiant, your drains—and your peace of mind—are in expert hands.
Clogs are more than an inconvenience—they’re often a warning sign. With the Radiant Care Club, San Antonio homeowners get ahead of drain issues before they turn into messy, stressful backups. As a member, you’ll receive an annual plumbing inspection that includes checks on sinks, tubs, floor drains, and more. Our licensed techs spot early signs of buildup, root intrusion, and poor flow—then help you take action before it gets worse.
Plus, if a clog ever catches you off guard, you’ll get priority scheduling, 10% off your service, and no dispatch fee. Whether you live in an older home with aging lines or a new build still settling, the Care Club gives your plumbing the routine attention it needs to stay clear and problem-free.
Join the Radiant Care Club and flush your drain worries for good.
When your drain backs up, you don’t want guesswork—you want results. At Radiant Plumbing & Air Conditioning, every drain cleaning service is backed by our Home Comfort Guarantee, so you know the job will be done right. That means transparent pricing before we start, licensed plumbers who respect your home, and lasting results you can trust.
We use proven methods—not quick fixes—to clear clogs and get your drains flowing again. And if you experience a backup related to our work? We’ll come back at no charge to make it right. That’s our promise. If we can’t meet your expectations, we’ll offer a 10% inconvenience refund—up to $1,000.
We take your time and trust seriously. With Radiant, you’re not just getting clear drains—you’re getting confidence that we stand behind every repair.
Thousands of Austin and San Antonio residents have trusted Radiant Plumbing & Air Conditioning as their full-home service provider for all their maintenance and repair needs. Discover our others services – like air conditioning and plumbing.
We proudly service the following cities and neighborhoods across San Antonio, TX:
Not seeing your area? Give us a call at 210-294-6703
Slow or backed-up drains are more than a headache—they’re a sign your plumbing needs expert attention. Radiant clears clogs fast with honest pricing, clean workmanship, and solutions that last. Our team understands local plumbing realities, such as slab-on-grade homes, long kitchen runs under concrete, and a mix of older cast-iron or clay laterals alongside newer PVC. We support residences first, and we’re equipped for light-commercial spaces like small offices and neighborhood eateries, too.
San Antonio conditions can be tough on drains. Hard water leaves mineral scale that grabs soap scum and hair, building stubborn bathroom clogs. Expansive soils and seasonal drought-to-downpour cycles can shift buried lines, creating bellies and offsets where grease and grit collect. Mature shade trees send aggressive roots toward moisture, especially at older pipe joints, while heavy rains can push debris into cleanouts and overwhelm poorly vented systems. In kitchens, heavy cooking means fats and starches congeal in cool sections of pipe. Our approach is diagnostic first: we locate the restriction, then choose the right method—high-speed cabling for tight turns, hydrojetting to scour grease and scale, and sewer camera inspections to verify a clear, healthy line. If we find a damaged pipe, we’ll explain repair or trenchless options and help you prevent the next backup with enzyme maintenance, proper cleanout access, and vent checks.
Beyond drain unclogging, we can help keep your San Antonio home comfortable with the following services:
From shower slowdowns to whole-home mainline backups, we clear the clog, confirm the fix with video when it counts, and leave you with straightforward prevention tips. Residential or light commercial, if you want drains that flow like they should—and stay that way—call the team built on transparency, craftsmanship, and local know-how. We Answer the Call.
