Straightforward drain cleaning & unclogging from Guzman Plumbing Services. Upfront quote, workmanship guaranteed, no surprises on the invoice.
Slow drains are easy to ignore until they aren't. A kitchen sink that takes minutes to empty, a shower that pools around your feet, a bathroom basin that gurgles after every use — these are all early warnings that buildup is restricting flow inside the pipe. Left alone, partial clogs become full blockages, and a backed-up main line can push wastewater into multiple fixtures at once. Grease accumulation, hair and soap scum, mineral scaling from San Antonio's hard water, and even root intrusion in older sewer laterals are among the most common culprits. The problem rarely fixes itself.
Drain cleaning at a professional level goes well beyond a bottle of store-bought drain cleaner or a basic hand snake. The process starts with identifying where the restriction is and what's causing it — that's where video camera inspection earns its value, letting technicians see inside the pipe before deciding on a method. For heavy grease buildup or years of accumulated scale, hydro-jetting delivers a high-pressure water scour that clears the line thoroughly without chemicals that can damage older pipes. Mechanical snaking handles most hair-and-soap clogs quickly. The right method depends on what the camera shows, and matching technique to problem is what separates a drain that stays clear from one that clogs again in a week.
Drain cleaning and unclogging service in San Antonio covers everything from single-fixture bathroom clogs to full main-line blockages in older homes with cast iron or clay pipe. When the work is done correctly, the difference is immediate — water drains freely, odors from trapped organic matter dissipate, and there's no gurgling from partial airlock in the line. A 90-day guarantee backs cleared drains, which reflects confidence in the thoroughness of the work rather than just a temporary fix. Guzman Plumbing Services carries the equipment to handle both routine residential clogs and the more stubborn buildup problems that come with older San Antonio properties.
Starting at $125
24/7 emergency response for burst pipes, severe leaks, and urgent plumbing failures that can't wait. We arrive within 60-90 minutes for most San Antonio emergencies with fully stocked trucks ready to handle water shutoffs, temporary repairs, and permanent solutions. All emergency work includes follow-up inspection.
Learn moreComplete water heater installation, repair, and maintenance for traditional and tankless systems. We service all major brands and can typically restore hot water same-day. New installations include removal of old unit, code-compliant installation, and testing. Energy-efficient options available with utility rebate assistance.
Learn moreAdvanced leak detection technology to locate hidden leaks and provide lasting repair solutions. We use acoustic listening devices, thermal imaging, and pressure testing to find leaks without unnecessary damage to walls or floors. From slab leaks to pinhole pipe leaks, we fix it right and guarantee our repairs.
Learn moreExpert toilet services including repairs, replacements, and upgrades for improved efficiency and performance. We fix running toilets, replace flappers and fill valves, repair cracked tanks, and install new water-saving models. Most repairs completed in under an hour. New installations include removal and responsible disposal of old fixtures.
Learn moreProfessional installation and repair of faucets, sinks, and plumbing fixtures throughout your home. We work with all major brands and can help you select fixtures that match your style and budget. Installations include proper sealing, testing, and cleanup. Most fixture swaps completed in 1-2 hours per fixture.
Learn moreComprehensive pipe repair and full repiping services using modern materials and techniques. We repair burst pipes, replace corroded sections, and offer whole-home repiping with PEX or copper. Our repiping service includes drywall patching and texture matching. Most single repairs done same-day, full repipes in 2-3 days.
Learn moreNot sure which service fits? Call us and we'll help you figure it out — free, no pressure.
Guzman Plumbing Services clears clogs at the source — not just temporarily — using camera inspection and hydro-jetting at a flat, upfront price.
San Antonio sits in a region with some of the hardest municipal water in Texas — the Edwards Aquifer supply that feeds most of the city carries high calcium and magnesium content that leaves mineral scale inside drain lines over time. That scaling narrows the pipe's interior diameter gradually, which is why older homes in neighborhoods like Mahncke Park, Beacon Hill, and the near South Side tend to see recurring slow drains even after basic snaking.
The city's older housing stock compounds the issue. Properties built before the 1970s frequently have cast iron drain lines that have corroded or shifted at joints, and some areas with mature tree canopies — Alamo Heights, Terrell Hills, Olmos Park — see root intrusion into clay sewer laterals as a seasonal pattern, particularly after dry stretches followed by heavy rain. These aren't problems a chemical drain cleaner can address.
San Antonio's hot, humid summers also accelerate organic buildup inside kitchen lines. Grease that flows freely in warm weather solidifies faster in air-conditioned homes, sticking to mineral scale already on the pipe wall. Understanding what's actually causing the restriction is what drives method selection — a hair-and-soap clog in a newer Alamo Ranch home calls for a different approach than a grease-and-scale blockage in a 1950s cast iron line near Southtown.
Most drain calls fall into one of three situations, and the right starting point depends on symptoms — not habit. A single slow fixture (one bathroom sink or one shower) that's been gradual almost always points to a localized clog within 10 to 15 feet of the drain opening. Mechanical snaking resolves these quickly and at the lowest cost.
When multiple fixtures slow down or back up at the same time — or when a toilet gurgles while a nearby sink drains — the restriction is further downstream, either in a branch line shared by several fixtures or in the main sewer lateral itself. That's when camera inspection earns its cost before any work begins, because sending a snake blindly into a partially collapsed or root-filled line can damage the pipe or just punch a temporary hole through a blockage that closes again within days.
Hydro-jetting makes sense when camera footage shows heavy grease accumulation, thick scale, or biological buildup coating the pipe walls rather than a single discrete clog. The high-pressure water scour restores the pipe's full interior diameter instead of creating a channel through the blockage. Knowing which situation you're in before the work starts is what keeps the job from being redone a week later.