Martin G Plumbing has been serving San Antonio homeowners, landlords, and businesses since 2011. We handle the full range of residential and commercial plumbing work, from everyday repairs and fixture installations to sewer line service and emergency calls. Work is performed by licensed plumbers who know Bexar County codes and show up ready to solve the problem. We're a small local team, and every customer matters to us.
Whether you need a leaking pipe repaired today or a full bathroom renovation plumbed from scratch, we're the number to call. Experienced plumbers. Code-compliant work. Professional service.
Call (726) 200-5632 for a quote.
A properly plumbed home is a worry-free home, and the same holds for any commercial property. We work with homeowners, landlords, property managers, condo associations, office buildings, restaurants, and apartment buildings across San Antonio. Whether the job is a scheduled repair, a new installation, a remodel rough-in, or an urgent call that came out of nowhere, we take it on.
We're trusted by local homeowners and property managers for their plumbing, and that trust has been built one job at a time over fifteen years. Our work is code-compliant, and we carry that standard across every project, big or small.
The hardest part of a plumbing problem is knowing when to call, and a slow drain that keeps coming back is usually a sign something deeper is going on. We clear kitchen and bathroom drains, tackle main line clogs, and use hydro jetting when buildup is too stubborn for a standard snake. If a sewer backup has already started, we can address that too. We'll get the job plumbed and finished.
Water leak detection, pipe leak repair, burst pipe repair, slab leak detection. Cover supply lines and visible pipe runs. We locate leaks in supply lines, visible pipe runs, and below the slab. Slab leaks are common in San Antonio given the expansive clay soils that shift under foundations, and catching one early prevents serious structural damage. Once we find it, we repair or replace the affected section and confirm the fix before we pack up.
Whether this is your first plumbing repair or your tenth, a cold shower is never something you want to troubleshoot alone. We repair and replace both tank and tankless water heaters, and we can respond the same day when there's no hot water at all. If your unit is aging and repairs are stacking up, we'll give you straight answers about whether a replacement makes more sense. One ring and we're on the way.
You shouldn't have to chase a plumber for answers when a toilet won't stop running or a faucet drips through the night. We handle toilet repair and replacement, faucet repair and installation, and full fixture installs for bathrooms and kitchens. If you're remodeling and need a plumber who can work alongside your contractor, we do that too.
Here's what most people get wrong about their plumbing: a slow drain on one fixture is a nuisance, but a slow drain on every fixture usually means the main sewer line is the problem. We repair and replace sewer lines, clear main line clogs, and handle sewer backup repair. Where trenchless methods are the right fit, we use them to minimize disruption to your yard. We speak only to the line from your house to the city connection. Reach out and we'll start at the source of the leak.
A garbage disposal that hums but won't spin, a kitchen faucet that barely trickles, a shutoff valve that leaks when you try to close it -- these are the everyday repairs that pile up. We install and repair garbage disposals, diagnose and fix low water pressure, and replace shutoff valves throughout the home. Small fixes handled right keep bigger problems from developing.
Older homes in Bexar County sometimes carry galvanized or polybutylene pipe that has simply reached the end of its useful life. When corrosion, pinhole leaks, or persistent low pressure point to the pipe itself, whole-home repiping is the right answer. We plan the work around your schedule and make sure the new supply lines are solid before we close the walls.
San Antonio and the surrounding Bexar County area come with a specific set of plumbing challenges. Hard water is a fact of life here, and it takes a toll on pipes, fixtures, and water heaters over time. The clay soils shift with the seasons, stressing foundations and the lines that run through them. Mature trees send roots into sewer lines, and heavy rainfall events push drainage systems to their limits. The three services below address the plumbing problems that come up most often in this part of Texas.
Low-lying neighborhoods in San Antonio are no strangers to flooding after a hard rain. A sump pump installed in a basement or below-grade crawl space moves water out before it can cause damage to floors, walls, and stored belongings. We install and service sump pumps, and we can assess whether your current setup is sized right for the drainage load your property sees.
San Antonio's mature tree canopy is one of the things that makes the city beautiful, but those root systems follow moisture into sewer lines through even the smallest crack or joint gap. Clay soil makes the problem worse by holding moisture near the pipe. We clear root intrusion with hydro jetting, inspect the line to assess the damage, and repair or replace sections where roots have done serious harm. Trenchless methods are available when the conditions are right.
San Antonio's water is notoriously hard, and the mineral buildup it leaves behind shortens the life of water heaters, clogs fixture aerators, and leaves scale on everything it touches. A whole-home water softener connects to the main supply line and treats the water before it reaches any fixture. We handle the installation and tie it properly into your existing plumbing so the system works from day one.
A burst pipe, a sudden sewer backup, or a water heater that stops working at midnight can't wait for a Monday morning appointment. We take emergency plumbing calls and offer same-day and after-hours response for urgent situations. Prompt response, even for last-minute plumbing calls, is something we take seriously because we know how fast water damage can get out of hand.
If you're dealing with a burst pipe, a major leak, or no hot water and you need someone now, call (726) 200-5632. We'll get the job plumbed and finished.
Whether this is your first plumbing repair or your tenth, the type of property you own shapes what you need from a plumber. Homeowners want a repair done right the first time. Landlords and property managers need someone who can coordinate with tenants and show up without drama. Commercial clients, including office buildings, restaurants, and new construction projects, need a plumber who understands production schedules and code requirements.
We work across all of those situations. Residential or commercial, scheduled or urgent, we bring the same standard to every job. We're trusted by local homeowners and property managers for their plumbing, and that reputation is something we protect on every call.
Martin G Plumbing was founded in 2011 and has been working in San Antonio and across Bexar County for fifteen years. The business is locally owned, and when you call, you reach someone who knows this area, knows the plumbing challenges that come with it, and is personally accountable for the work we do.
We serve customers throughout the San Antonio metro, including:
If you're nearby and need a plumber, we're likely already working in your neighborhood.
You shouldn't have to chase a plumber for answers, and we don't make you. When you call, we schedule a time that works, show up when we say we will, and diagnose the problem before we talk price. You'll get straight answers about your pipes and fixtures, no surprises, so you know what the work involves before any of it starts.
We pick up the phone. We arrive on time. We test before we leave.
That last step matters. We don't consider a job done until we've confirmed the repair is holding, the water is flowing right, and everything is clean. Reach out and we'll start at the source of the leak.
If you have a burst pipe or major leak, locate your main water shutoff and turn it off to stop the flow. If the leak is near electrical panels or outlets, keep clear and do not touch anything electrical. Call us at (726) 200-5632 and we'll walk you through any immediate steps while we're on the way.
A clog in one fixture, like a single sink or toilet, usually points to a localized blockage in that drain line. When multiple fixtures back up at the same time, or when using one fixture causes another to gurgle or overflow, the main sewer line is typically the source. We assess the pattern of the backup to determine where to start before we begin any clearing work.
A camera inspection sends a small waterproof camera through the sewer line so we can see the interior condition of the pipe in real time. We use it when a blockage is recurring, when we suspect root intrusion, or when we want to assess the overall condition of an older line before recommending repair or replacement. It takes the guesswork out of sewer line diagnosis.
San Antonio's mature live oaks, pecans, and other established trees have extensive root systems that follow moisture into sewer lines through even small cracks or joint gaps. The clay soil common in Bexar County holds moisture near the pipe, which draws roots in. We clear root intrusion with hydro jetting and inspect the line to determine whether a repair or replacement is the right next step.
A whole-home water softener ties into the main supply line so that all water entering the home is treated before it reaches any fixture, appliance, or water heater. We size the system to your household's demand, make the supply line connections, and test water quality before and after so you can see the difference. San Antonio's hard water makes this one of the more impactful upgrades a homeowner can make.
A sump pump sits in a pit at the lowest point of a basement or crawl space and activates automatically when water accumulates, pumping it out through a discharge line routed away from the foundation. We size the pump to the space, position the pit correctly, and test the system before we leave. If your property is in a low-lying area of San Antonio or you've had water intrusion after heavy rain, it's worth a conversation.
It depends on the job. Some repairs, like replacing a faucet or a toilet, only require shutting off the supply valve for that fixture. Larger work like repiping or main line repair requires shutting off the main supply. We'll tell you in advance what to expect so you can plan accordingly.
A patch is appropriate when the pipe is otherwise in good condition and the problem is genuinely isolated. When the surrounding pipe is corroded, when the same section keeps failing, or when the pipe material itself is the issue, a more complete repair or replacement is the right call. We give you an honest assessment of what the pipe actually needs rather than defaulting to the quickest fix.
We look at the condition and age of the water heater, signs of corrosion or sediment buildup, the integrity of the supply and discharge connections, and whether the pressure relief valve is functioning. At the main line and shutoff valves, we check for leaks, corrosion, and whether the valve closes fully. If we spot something worth addressing, we'll let you know before it becomes a bigger problem.
An inspection makes sense before buying an older home, after a period of unusually high water bills, or when a home hasn't had any plumbing attention in several years. It's also a smart step before a renovation that will add fixtures or change the load on existing lines. Catching a developing problem early is almost always less expensive than addressing it after it fails.
Permits are required for certain types of plumbing work in San Antonio, including water heater replacements and sewer line work in many cases. We handle the permit process where it applies and make sure the work is done to code so it passes inspection. We'll let you know at the estimate stage whether your job requires a permit.
Martin G Plumbing is ready to take your call. From a leaking faucet to a full sewer line replacement, we handle residential and commercial plumbing across San Antonio and the surrounding area. Work is performed by licensed plumbers, and every job gets the same attention whether it's a quick fix or a major repair.
Experienced plumbers. Code-compliant work. Professional service.
Call (726) 200-5632 for a quote today.
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