Martin G Plumbing has been serving San Antonio homeowners, property managers, and businesses since 2011. We're a small local team, and every customer matters to us. From a slow kitchen drain to a burst pipe at midnight, we show up ready to work and we don't leave until the job is done right. Whether you're a first-time homeowner trying to figure out a leaking faucet or a property manager overseeing a commercial building, you'll get the same honest service and the same attention to detail every time you call. Trusted by local homeowners and property managers for their plumbing, we've built our reputation one job at a time across Bexar County and the surrounding communities.
Fifteen years ago, we started with a truck, a set of tools, and a straightforward idea: do good plumbing work, be honest with people, and show up when you say you will. That idea still runs everything we do. Over the years we've worked on hundreds of homes and commercial properties across San Antonio, handled everything from simple fixture swaps to full repiping jobs, and built relationships with customers who keep calling us back because they know what to expect.
We handle residential and commercial plumbing, and we're equally comfortable under a kitchen sink in a family home as we are running sewer line service for an apartment complex or office building. Work performed by licensed plumbers on every job, no exceptions.
We pick up the phone. We arrive on time. We test before we leave.
A properly plumbed home is a worry-free home, and that's what we're here to help you maintain. Our team covers the full range of plumbing work, from routine repairs and fixture installation to emergency service and whole-home repiping. Licensed plumbers handle every job, and the work is done to code so you don't run into problems down the road.
Below is a breakdown of what we do most often across San Antonio and the surrounding area.
A slow drain is easy to ignore until it backs up completely. We clear kitchen drain clogs, bathroom and shower drain blockages, floor drains, and main drain lines. For stubborn or recurring blockages, we use hydro jetting to flush out grease, mineral buildup, and debris that a standard snake won't reach. When we arrive, we locate the clog, clear it completely, and let you know if there's an underlying issue worth addressing.
Water leaks cause more damage the longer they go undetected. We handle water leak detection, pipe leak repair, water line repair, and shutoff valve replacement. San Antonio's expansive clay soil puts constant stress on pipes and foundations, which is why slab leak detection and repair is one of the more common calls we get in this area. Catching a slab leak early can save a homeowner significant repair costs. We use detection methods that locate the problem before we open anything up.
No hot water is one of those problems that can't wait. We repair and replace both tank and tankless water heaters, and we handle emergency water heater calls when the situation can't be put off until next week. If your unit is failing, making noise, or not keeping up with demand, we'll assess whether a repair makes sense or whether replacement is the smarter long-term call. Where the job involves a gas supply line to the water heater, we handle that side of the work as well.
A sewer backup or main line clog is a serious problem for any property. We clear main line clogs, repair and replace damaged sewer lines, and address sewer backups in both residential and commercial settings. Tree root intrusion is a common cause of sewer line problems in older San Antonio neighborhoods, and we handle root clearing and line repair as part of our regular sewer service. Trenchless sewer repair is available where the access and conditions make it a practical option.
From a running toilet to a full bathroom fixture upgrade, this is the everyday plumbing work that keeps a home or building functioning. We repair and replace toilets, install and repair kitchen and bathroom faucets, handle sink installation, and service garbage disposals. If a fixture is worn out, leaking, or just needs an upgrade, we'll get the right parts and get it installed correctly the first time.
Older pipe materials corrode, scale up, and eventually fail. When a home has persistent low water pressure, recurring leaks, or aging galvanized pipe throughout, a repipe is often the right long-term answer rather than patching the same problems repeatedly. We handle whole-home repiping in copper and PEX, burst pipe repair, and water pressure diagnostics. We also service water main shutoffs and address pressure issues at the source.
The hardest part of a plumbing problem is knowing when to call, and the answer is usually sooner than you think. A burst pipe, major leak, sewer backup, or complete loss of hot water are all situations that need attention right away, not next Tuesday. We offer 24-hour emergency plumbing service and same-day scheduling for urgent calls throughout San Antonio and Bexar County.
We keep our response time short because we know a plumbing emergency doesn't pause while you wait for a callback. Prompt response, even for last-minute plumbing calls, is something we take seriously. When you call, you'll reach someone who can get a plumber to your door fast.
One ring and we're on the way.
Whether this is your first plumbing repair or your tenth, the process works the same way with us. We listen to what you're dealing with, we assess the problem, and we give you a clear picture of what the repair involves before we start.
For homeowners, that means straightforward service without the pressure. For property managers and commercial clients, it means a plumbing contractor who understands the pace of managing multiple units or a commercial building, responds quickly, and communicates clearly so you can keep things running. We work with apartment buildings, rental properties, small businesses, and commercial facilities across the area. The same standards apply regardless of the property type.
You shouldn't have to chase a plumber for answers, and you shouldn't be surprised by a bill that looks nothing like what you were told. Before we start any work, we walk you through what the job involves and what it will cost. If something unexpected comes up once we're into the repair, we stop and talk to you before we go further.
Straight answers about your pipes and fixtures, no surprises, is how we approach every estimate and every invoice. Call us to request a quote on any job, large or small, and we'll give you a clear number before any work begins. Reach out and we'll start at the source of the leak.
We're based in San Antonio and work throughout Bexar County on a daily basis. Beyond the city itself, we regularly serve the surrounding communities, including Converse, Live Oak, Schertz, Leon Valley, Helotes, and Windcrest. If you're in the area and need a plumber, there's a good chance we've already worked in your neighborhood.
Call us and we'll confirm coverage for your location.
Every job we complete is done to meet current plumbing code. That matters for your safety, for your home's resale value, and for avoiding problems that come back to bite you later. Licensed plumbers handle the work from start to finish, and we don't cut corners to save time on a job. When we're done, we test everything before we pack up and leave, because a repair that fails the next day isn't a repair.
The plumbers who show up at your door are the same team that has been working in San Antonio and Bexar County for years. Work is performed by licensed plumbers on every job, no exceptions. You're not getting a rotating roster of unfamiliar faces on every call.
We've been working across San Antonio and Bexar County since 2011, which means we've seen the plumbing problems that come with the territory: hard water from the Edwards Aquifer, clay soil that stresses foundations and underground lines, and aging infrastructure in older neighborhoods. That local experience shapes how we approach diagnosis and repair on every job.
It means the person who picks up the phone and the people doing the work are accountable to this community. We're a small local team, and every customer matters to us. When you call, you reach someone who knows San Antonio, knows the area's plumbing challenges, and is personally invested in the outcome of your job.
We schedule our calls with realistic travel and job-time estimates so we're not rushing through one job to get to the next. If a job runs longer than expected, we communicate with the next customer. We'd rather give you an honest arrival window than promise a time we can't keep.
We treat your home like it matters, because it does. That means laying down protection where needed, cleaning up the work area when we're done, and being careful around finished surfaces, cabinetry, and flooring. We don't leave a mess behind.
Yes. We show up with the tools and equipment needed to handle the job, and we take care of our gear because it reflects how we work. A plumber who shows up organized and prepared is one who takes the job seriously.
Martin G Plumbing has been part of the San Antonio community since 2011, and we plan to keep showing up for the people and properties that count on us. Whether you need a drain cleared today, a water heater replaced this week, or a full repipe planned out for an older home, we're ready to help.
Experienced plumbers. Code-compliant work. Professional service.
Call (726) 200-5632 to request a quote or schedule a service call. We'll give you a straight answer on what the job involves and get it on the calendar.
From a backed-up drain to a water heater that stopped working overnight, we handle the full range of plumbing repair and installation for homes and businesses across San Antonio and Bexar County. Every job starts with a clear estimate so you know what the work involves and what it will cost before we touch anything. The table below covers what we do, who each service fits, and a few practical things worth knowing before you call.
| Plumbing Service | Scope of Work | Best For | Good to Know |
|---|---|---|---|
| Emergency Plumbing | burst pipe response, major leak control, same-day urgent service | Any situation where water is actively causing damage or the home has no hot water | We offer same-day availability on most calls and respond quickly when the situation is urgent. |
| Sump Pump Installation | pump sizing and pit placement, discharge line routing, system testing | Low-lying properties or homes that have experienced water intrusion during heavy rain | Flash flooding from Hill Country rain events can move fast. A properly installed pump protects the space before damage starts. |
| Sewer and Main Line Service | main sewer line clearing, sewer line repair and replacement, main water line repair | Properties with slow drains throughout the building or a sewage backup | We work the line from the house to the city connection. A camera inspection tells us the full condition of the pipe. |
| Slab Leak Detection and Repair | non-invasive leak location, targeted slab access, pipe repair or reroute | Homes with warm spots on the floor, unexplained water bills, or foundation moisture | San Antonio's shifting clay soils stress under-slab lines. Finding the leak early limits how much concrete needs to be opened. |
| Leak Detection and Repair | pipe and water line leaks, slab leak location, non-invasive detection before opening walls | Homeowners with unexplained water bills or suspected hidden leaks | Finding a leak early prevents structural damage and brings utility costs back down. |
| Garbage Disposal Service | disposal repair, full unit replacement, proper drain connection | Kitchens with a disposal that hums, jams, or will not run | A disposal that leaks at the base or the drain connection is usually worth replacing rather than patching. |
| Whole-Home Repiping | galvanized and aging pipe replacement, full supply line repipe, code-compliant materials | Older homes with recurring leaks, low pressure, or deteriorating pipe throughout | Repiping is the long-term fix that restores reliable flow and water quality from every tap in the house. |
| Water Heater Repair and Replacement | tank and tankless units, diagnosis and repair, code-compliant installation | Any home or building with no hot water or a failing unit | Work is performed by licensed plumbers and the installation is tested before we close out the job. |
| Toilet Repair and Installation | running and leaking toilets, full toilet replacement, flapper, fill valve, and wax ring service | Homeowners dealing with waste or water loss from a faulty toilet | A running toilet can waste thousands of gallons a month. A repair is often the fastest fix on the bill. |
| Water Softener Installation | whole-house softener connection, system sizing, before-and-after water quality testing | San Antonio homes dealing with scale buildup in pipes, heaters, and fixtures | Edwards Aquifer water is among the hardest in Texas. A softener at the supply line protects everything downstream. |
| Tree-Root Sewer Line Service | root intrusion clearing, camera inspection of the line, repair or line replacement | Older San Antonio properties with mature trees near sewer lines | Live oaks and pecans follow moisture into small cracks. We clear the line and give you an honest read on its condition. |
| Water Pressure and Shutoff Valve Repair | low pressure diagnosis, pressure regulator service, shutoff valve replacement | Homes with weak flow at multiple fixtures or valves that no longer close fully | San Antonio's hard water can accelerate buildup in regulators and valves, shortening their service life. |
| Faucet and Fixture Installation | kitchen and bathroom faucets, shower and tub fixtures, outdoor hose bibs | Homeowners upgrading fixtures or replacing ones that drip or corrode | Every fixture we install is tested before we leave to confirm there are no leaks at the connection. |
| Drain Cleaning and Clog Removal | sink, shower, and tub clogs, main line drain clearing, hydro jetting for grease and mineral buildup | Any home or property with slow or fully blocked drains | Hydro jetting clears buildup that a snake alone cannot reach, protecting the interior of the pipe long-term. |
How do I know if my water heater needs to be repaired or replaced?
Age is the first thing we look at. A tank unit that is more than ten years old and showing problems is usually a better candidate for replacement than repair. If the unit is younger and the issue is isolated, a repair often makes sense. We diagnose the unit first and give you a straight answer on which direction saves more money over time. We do not push replacement when a repair will do the job.
What is the difference between a tank water heater and a tankless unit?
A tank unit stores a set volume of heated water and keeps it ready around the clock. A tankless unit heats water on demand as it flows through, which means it does not run out the way a tank can during high-demand periods. Tankless units tend to have a longer service life and lower standby energy use, but the upfront installation cost is higher. We can walk you through which option fits your household size and usage before you decide.
What causes drains to slow down or back up?
Most clogs in individual drains come from hair, soap buildup, grease, or food debris depending on which fixture is involved. When multiple drains in the house are slow at the same time, the problem is usually further down in the main line. In San Antonio, tree roots from mature live oaks and pecans are a common cause of main line slowdowns in older neighborhoods. We locate the blockage and clear it with the right tool, whether that is a snake or hydro jetting for tougher buildup.
Upfront Quotes With No Surprise Fees
We give you a clear estimate before any work starts and we stick to it. If something unexpected comes up, we stop and talk to you before going further.
How do you find a hidden leak without tearing up walls or floors?
We use non-invasive detection methods that let us locate the source of a leak before we open anything. For slab leaks, we use listening equipment and pressure testing to pinpoint where the pipe is failing under the concrete. That approach limits how much material needs to be disturbed and keeps the repair targeted. We explain what we find before any work begins.
How do I know if a clog is in one fixture or in the main sewer line?
If only one drain is slow, the blockage is likely in that fixture's trap or the branch line serving it. When multiple drains throughout the house are backing up at the same time, or when flushing a toilet causes water to rise in a nearby tub or sink, the main sewer line is usually where the problem is. We can tell you quickly which situation you are dealing with and clear the right section of the line.
What does low water pressure usually mean?
Low pressure at a single fixture is often a clogged aerator or a partially closed shutoff valve at that fixture. When pressure is low throughout the whole house, the cause is usually a failing pressure regulator, a partially closed main shutoff, or buildup inside the supply lines. San Antonio's hard water accelerates mineral buildup in regulators and valves, so this comes up more often here than in areas with softer water. We diagnose the source and fix it at the right point.
Same-Day and Emergency Availability
We offer same-day service on most calls and respond quickly when the situation is urgent. Prompt response, even for last-minute plumbing calls, is part of how we operate.
Do I need to be home when the plumber arrives?
For most jobs, yes. We need access to the work area and we give you a clear estimate before starting, which means someone needs to be available to walk through the scope with us. If you are a property manager coordinating access for a tenant, we can work with you on scheduling and communicate directly with whoever is on site. Just let us know the situation when you call.
How does pricing work and will I know the cost before work starts?
We give you a clear estimate before any work begins. That estimate covers the scope we have agreed on, including labor and parts. If something unexpected comes up once we are into the job, we stop and talk to you before going further. You will not see charges on the invoice that were not discussed upfront.
Work Performed by Licensed Plumbers
Every job we take on is handled by licensed plumbers and completed to code. We test the work before we leave so you know it is holding.
When does it make sense to repipe a home rather than keep repairing leaks?
When a home has galvanized or older pipe that is producing recurring leaks, persistent low pressure, or discolored water, patching individual spots usually costs more over time than addressing the pipe throughout the house. We assess the condition of the existing pipe and give you an honest read on whether a targeted repair or a full repipe makes more sense for your situation. Repiping is a bigger job upfront, but it restores reliable flow from every tap and stops the cycle of repeated repairs.
How does tree root damage happen and what does the repair involve?
Roots follow moisture, and a small crack or joint gap in a sewer line is enough of an entry point. Once inside, roots expand and can eventually block the line entirely. We clear the root intrusion, run a camera inspection to assess the full condition of the pipe, and give you an honest assessment of whether a repair or a section replacement is the right call. We work the line from the house to the city connection and will tell you exactly what we find.
What should I do if a pipe bursts or I have a major leak?
Shut off the water at the nearest shutoff valve you can reach, or at the main shutoff if the leak is large. Then call us. We offer same-day service on most calls and respond quickly when the situation is urgent. While you wait, keep people away from standing water and, if the leak is near any electrical panel or outlet, do not enter the area until the power is confirmed off. The sooner we can get there, the less damage the water can do.
Call (726) 200-5632 and we will walk you through what the job involves, give you a real number to work with, and get you scheduled.
(726) 200-5632