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Harris County · Texas

Plumbers in Houston, TX

Houston plumbing has to cope with clay that moves, rain that arrives by the foot, and a housing stock that ranges from 1920s Heights bungalows to 1990s slab homes in Kingwood. Our Houston plumbers handle the problems that mix produces, from a water heater leaking through an attic ceiling to a sewer line that backs up every time Brays Bayou rises.

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Local plumbing problems

What goes wrong with plumbing in Houston

  • Water heaters in the attic

    Houston builders put water heaters in attics for decades. When a tank fails there, the first sign is often a ceiling stain or a collapse of wet drywall. Plumbers here check drain pans and pan drains on every visit and push for replacement before a tank reaches the end of its life, not after.

  • Sewer laterals from the 1950s to 1970s

    Neighborhoods like Oak Forest, Sharpstown, Meyerland and Spring Branch were built with clay tile or cast iron laterals that are now well past fifty years old. Beaumont clay has shifted the joints, and live oak and pecan roots have found them. Repeat backups are the signature symptom.

  • Slab leaks in clay soil

    Houston's Beaumont-formation clay swells in the wet months and shrinks in a dry August. Copper supply lines under a 1970s slab move with it until a joint gives way. Warm floors, spinning water meters and a bill that doubled are how most Houston homeowners find out.

  • Sewer backups when the bayous rise

    During intense rain the city's sewers surcharge, and wastewater looks for the lowest outlet in the house. Homes along Brays, White Oak and Buffalo bayous see this most. Backflow valves on the lateral and knowing not to run water during a flood event are part of living here.

  • Freeze damage in a city built for heat

    Attic supply lines, hose bibs and outdoor tankless heaters in Houston are rarely insulated. The February 2021 freeze burst pipes across the city, and every hard freeze since has produced a smaller version of the same wave.

Houston plumbing services

Local pages for the services we dispatch most in Houston. Each one covers the problems, housing and water conditions specific to the area.

Also available in Houston: pipe repair, water heater installation, sewer cleaning, toilet repair, faucet repair, garbage disposal repair, emergency plumber, 24/7 emergency plumbing, burst pipe repair, emergency leak repair, emergency drain cleaning, emergency sewer repair, emergency water heater repair, overflowing toilet repair, clogged drain repair, kitchen drain cleaning, bathroom drain cleaning, shower drain cleaning, bathtub drain cleaning, floor drain cleaning, main drain cleaning, slow drain repair, hydro jetting, drain snaking, sewer line replacement, sewer camera inspection, sewer scope inspection, trenchless sewer repair, sewer pipe relining, sewer backup repair, main sewer line repair, water heater replacement, tankless water heater repair, tankless water heater installation, tankless water heater replacement, gas water heater repair, electric water heater repair, water heater maintenance, water leak repair, slab leak detection, slab leak repair, pipe leak repair, ceiling leak repair, under sink leak repair, bathroom leak repair, hidden leak detection, pipe replacement, repiping services, whole house repiping, frozen pipe repair, pipe thawing, copper pipe repair, pex repiping, polybutylene pipe replacement, toilet installation, toilet replacement, running toilet repair, clogged toilet repair, toilet leak repair, bidet installation, faucet installation, faucet replacement, sink installation, sink repair, kitchen faucet repair, bathroom faucet repair, shower repair, shower installation, bathtub repair, bathtub installation, shower valve repair, shower leak repair, tub to shower conversion, bathtub drain repair, garbage disposal installation, garbage disposal replacement, jammed garbage disposal repair, water line repair, water line replacement, water main repair, water main replacement, water service line installation, underground water line repair, gas line installation, gas line repair, gas leak detection, gas line replacement, sump pump installation, sump pump repair, sump pump replacement, battery backup sump pump, sump pit cleaning, commercial plumbing repair, commercial drain cleaning, commercial water heater services, restaurant plumbing, grease trap cleaning, commercial sewer services, backflow testing, backflow prevention, commercial plumbing maintenance, plumbing fixture installation, water softener installation, water filtration installation, dishwasher installation, washing machine hookup, ice maker line installation, outdoor faucet installation, water softener repair, water filtration systems, hard water treatment, water testing, whole house water filter, reverse osmosis installation.

Plumbing in Houston, neighborhood by era

Houston has never had zoning, and its plumbing shows it. In the Heights, Woodland Heights and Montrose, bungalows from the 1910s and 1920s sit on pier-and-beam foundations with drains that may have been replaced once in a century, or never. Move out to Oak Forest, Garden Oaks, Meyerland and Sharpstown and you are in the post-war boom, where cast iron and clay laterals were laid in the 1950s and 1960s under yards that have since grown live oaks and pecans. Spring Branch, Memorial and Braeswood span the same period. Alief, Westchase, Kingwood, Clear Lake and Copperfield came in the 1970s through 1990s on slabs with copper beneath, and in some cases polybutylene inside the walls.

Each era fails in its own way, and a Houston plumber knows the difference on arrival. The pier-and-beam home has accessible but freeze-exposed lines. The mid-century home has a lateral that roots have found. The slab home has a copper line the clay has been working on for forty years.

Clay, rain and the bayous

Houston’s Beaumont clay is among the most expansive soils that homes are built on anywhere in Texas. It swells in a wet spring and shrinks in a dry August, moving slabs enough to stress the copper cast beneath them and offset joints in buried sewer lines. That movement is the root cause behind a large share of the slab leaks and repeat sewer backups our plumbers see in the city.

Then there is the rain. Houston drains through bayous, and the bayous have limits. Neighborhoods along Brays Bayou in particular have flooded repeatedly in the last decade, and even in a routine heavy storm the city’s sewer mains surcharge. When they do, wastewater rises toward the lowest fixture in the house, which is why backflow valves on the lateral are a common recommendation in low-lying areas and why a plumber will tell you not to run water during a flood event.

Water heaters, attics and the rare freeze

Houston construction put water heaters in attics for decades to save floor space. It works until the tank fails, at which point the first sign is a stained or collapsing ceiling. Our plumbers check drain pans and pan drains on every visit, recommend leak alarms, and encourage replacing an attic tank on schedule rather than on failure.

The same attics carry uninsulated supply lines, and the city’s tankless heaters are often mounted outside. Most winters that costs nothing. In February 2021 it cost Houston homeowners a wave of burst pipes, and each hard freeze since has repeated the pattern on a smaller scale. A few hours of insulation work in the fall prevents most of it.

Water and what it does

Houston’s water is mostly surface water from Lake Houston, Lake Livingston and Lake Conroe, and it is moderately hard rather than the very hard water of San Antonio or Austin. For most homes that means an annual water heater flush is enough and a softener is optional. Outlying areas served by groundwater can test harder, and a plumber can check hardness at the tap if scale or tankless error codes suggest it.

Houston housing and infrastructure

The local factors that most often determine what a plumber finds and how a repair is done here.

  • Housing eras side by side

    With no zoning, a 1920s pier-and-beam bungalow in the Heights, a 2010s townhome and a 1960s ranch can share a block and a sewer main. Plumbers here work on galvanized, cast iron, clay, copper, polybutylene and PEX, often within the same week.

  • Moderately hard surface water

    Houston draws mostly from Lake Houston, Lake Livingston and Lake Conroe. The water is moderately hard and varies by which plant serves your area. Annual water heater flushing handles it for most homes; softeners are less universal here than in Austin or San Antonio.

  • Drainage by bayou

    The city drains through a network of bayous with limited capacity for the storms Houston receives. Yard drainage, sump systems in the few homes with them, and sewer backflow protection all matter more in low-lying neighborhoods.

  • Harris County and beyond

    Most of Houston sits in Harris County, but the city extends into Fort Bend and Montgomery counties. Permits and inspections follow the City of Houston's plumbing code, which requires plumbers to register with the city in addition to holding a Texas license.

Areas of Houston we serve

Neighborhoods and districts

  • The Heights
  • Montrose
  • Midtown
  • Museum District
  • Third Ward
  • East End
  • Oak Forest
  • Garden Oaks
  • Meyerland
  • Westbury
  • Braeswood
  • Sharpstown
  • Spring Branch
  • Memorial
  • River Oaks
  • Tanglewood
  • Alief
  • Westchase
  • Kingwood
  • Clear Lake
  • Copperfield
  • Willowbrook
ZIP codes we serve in Houston

77001–77096, 77098–77099, 77201–77210, 77212–77213, 77215–77231, 77233–77238, 77240–77245, 77248–77249, 77251–77259, 77261–77263, 77265–77275, 77277, 77279–77280, 77282, 77284, 77287–77293, 77297, 77299

From our approved service-area list. If your ZIP is not shown, call and we will check.

Nearby communities on our service list: Pasadena, Pearland, Sugar Land, Missouri City, Katy, Cypress, Spring, Humble, Baytown, League City, Bellaire.

Questions

Houston plumbing questions

My water heater is in the attic. Should I move it?

Not necessarily, but you should manage the risk. Make sure the unit sits in a drain pan with a pan drain that runs to the exterior, install a leak alarm or automatic shutoff valve, and replace the tank proactively at ten to twelve years rather than waiting for it to fail over a bedroom. When it is time to replace, some Houston homeowners move the heater to the garage or switch to a wall-mounted tankless unit outside, which our plumbers can price for you.

Why does my sewer back up every time it rains hard in Houston?

Two things are usually happening. Heavy rain surcharges the city's sewer mains, so wastewater has nowhere to go and rises toward the lowest fixture in nearby homes. At the same time, an older lateral with cracks or offset joints lets groundwater in, adding to the load. A camera inspection shows the lateral's condition, and a backflow valve on the line stops the city's overflow from entering your home. Repairing or lining the lateral addresses the infiltration.

How do I know if my Houston home has a slab leak?

Turn off every fixture and appliance, then watch the water meter at the curb. If it moves, water is leaving the system. A warm spot on the floor, the sound of running water with everything off, cracks in tile or a musty smell along a wall are typical signs in Houston's slab homes. Leak detection equipment locates the spot without breaking the floor, and in many cases the fix is to reroute the line through the attic rather than open the slab.

Should I have the sewer line inspected before buying an older Houston house?

Yes, especially inside the Loop and in mid-century neighborhoods. A camera inspection costs a fraction of a lateral replacement and shows whether the line is clay, cast iron or PVC, whether roots are in it, and whether joints have shifted. Sellers are not required to disclose what they do not know, and most do not know the condition of the sewer line.

What should I do to protect my Houston plumbing before a freeze?

Insulate attic supply lines and any pipe in an exterior wall, disconnect hoses and cover hose bibs, and if you have an outdoor tankless unit confirm its freeze protection has power. Drip a faucet on the far side of the house and open cabinets under sinks on outside walls. Know where the main shutoff is so a burst pipe when it thaws does not become a flood.

Does Houston water need a softener?

For most Houston homes, no. The city's surface water is moderately hard, and annual flushing keeps water heaters in reasonable shape. Homes on groundwater-supplied systems in outlying areas may test harder. If you see heavy scale on fixtures or a tankless unit throwing error codes, a plumber can test hardness at the tap and tell you whether a softener would pay off.

Two plumbers reviewing a job at a customer’s home

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Describe the problem and your Houston ZIP code. We connect you with a licensed local plumber and tell you what to do while they are on the way.

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