Single-storey brick ranch home on a flat lot in Houston, TX, a house type that often has an attic water heater

Emergency Water Heater Leak Repair in Houston, TX

Water heater leak repair in Houston, TX homes and rentals across Harris County, from the Texas Medical Center to George Bush Intercontinental Airport. We trace the leak to a valve, a fitting or the tank, fix it, and replace the heater when the tank has failed. Calls answered 24/7.

  • Service areaHouston, TX and Harris County
  • Leaks we traceValves, fittings and failed tanks
  • Houston replacement permitPulled by a city-registered master plumber
  • CallsAnswered 24/7

Water Heater Leak Causes in Houston Homes

Our water heater leak repairs reach every part of Houston, TX and the rest of Harris County. Every leak starts at a valve, a joint or the tank itself, and we find out which one first. Valves and joints are part swaps. A rusted-through tank means a new heater, plus a city permit and an inspection in Houston.

Plumber checking the pipes above the tank for a freeze split before blaming the tank, Houston, TX garage
A heater line that froze often leaks only after it thaws, so the pipes above the tank get checked first.

Freezing Nights on Attic and Garage Lines

Supply lines in unheated attics and garages

NOAA's 1991-2020 normals show Bush Intercontinental dropping to 32 F or lower on 10.1 nights in an average year. A heater line that froze often leaks only after it thaws, so we check the pipes above the tank before we blame the tank.

  • 32 F or lower on 10.1 nights
  • Often leaks only after it thaws
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Original shut-off valve and older connectors weeping above a water heater in an early-1980s Houston, TX home
In a house from the early 1980s, the cold shut-off and connectors may be original and often weep before the tank does.

Original Connections in Early-1980s Homes

The shut-off valve and connectors above the heater

The Census Bureau puts the median Houston home at 1982 construction. In a house that age, the cold shut-off and the connectors on top may be original or several heaters old, and they often weep before the tank does.

  • The median Houston home dates from 1982
  • They often weep before the tank does
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Water heater pan drain line dripping from under the eave of a brick house in Houston, TX
A drip from the pan drain outlet outside is often the first sign the attic heater above is leaking.

Attic Heaters Draining Into the Pan

The drain pan and the line that runs out to the eave

Many Houston, TX homes put the heater in the attic over a drain pan, with a line that exits under the eave. A drip from that line outside, or a brown ring spreading across the ceiling below, is often the first sign.

  • A line that exits under the eave
  • A brown ring spreading across the ceiling
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Attic water heater with a nearly full drain pan in a humid Houston, TX attic
An attic heater in Houston relies on its pan and pan drain; when the pan fills, the water heads for the ceiling.

Sediment and a Tank Near Its End

Inside the tank, down at the drain spigot

Sediment that settles inside can stop a drain valve from sealing once someone has opened it. When the anode rod is used up, the steel starts to rust, and a tank seeping at its base can't be repaired.

  • Can stop a drain valve from sealing
  • Can't be repaired
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Leak Repair Services by Where the Water Shows Up

The spot where water appears on your heater tells us which part failed, and every visit ends with that part fixed or the heater replaced.

Condensation and a small puddle at the base of a gas water heater, one of three base leak sources, Houston, TX
A wet base has three usual sources, the drain valve, condensation or the tank bottom, and only the last needs a new heater.

Leaks at the Base

A wet base has three usual sources: the drain valve, condensation off a tank full of cold water, or the tank bottom. We check them in that order, and only the last one means a new heater.

  • Condensation off a tank full of cold water
  • Only the last one means a new heater
Crusted anode port and a water trail running down the jacket from the top of a water heater, Houston, TX
Joints on top weep slowly and send water down the jacket, so a top leak often looks like a base leak at first.

Leaks on Top of the Heater

Joints on top weep slowly and send water down the jacket, so a top leak often looks like a base leak at first. We trace it back to the joint that failed and reseal or replace it.

  • Often looks like a base leak
  • Reseal or replace it
Heat-and-pressure safety valve high on a water heater tank dripping at its outlet, Houston, TX
The relief valve opens when the tank runs too hot or pressure climbs, so house pressure is gauged before it is replaced.

Relief Valve Dripping

This valve opens when the tank runs too hot or the pressure climbs, and it also drips once it wears out. We gauge the house water pressure before replacing it, because a new valve does nothing for high pressure.

  • We gauge the house water pressure
  • A new valve does nothing for high pressure
Wall-hung tankless unit leaking at its water connections in a Houston, TX laundry room
Electric tanks weep at element gaskets, tankless units leak at their water connections, and a failed tank is replaced.

Electric, Tankless and Failed Tanks

We work on gas and electric tanks and on tankless units. Electric heaters can weep at the element gaskets, and tankless units leak at their water connections. When a tank has failed, we replace the heater.

  • Weep at the element gaskets
  • We replace the heater

Permit Rules for Replacing a Water Heater in Houston, TX

The Houston Permitting Center, part of Houston Public Works, issues the permit when a water heater is replaced or installed, and it limits who can pull one.

Master plumber holding the permit paperwork for a water heater replacement outside a Houston, TX home

A Registered Master Plumber Pulls It

The Houston Permitting Center says a permit to replace or install a water heater must be obtained by a master plumber registered with the City of Houston. A single-family home needs no plan review, the work needs an inspection, and the permit stays valid for 180 days.

Homeowner levelling a new water heater they install in the homestead they live in, Houston, TX

The Homeowner Exception

Houston also issues a Homeowner's Plumbing Permit, but only for the homestead the owner lives in and only when the owner does the work and schedules the inspections. State law backs this: under Texas Occupations Code section 1301.051, an owner needs no plumbing license for work in their own homestead.

Homeowner checking a plumber's license number on a tablet before a Houston, TX water heater replacement

Checking the License First

Before anyone replaces a heater in Houston, ask for the license number. State board guidance says a Master Plumber number begins with M, while numbers starting with A, T or J are not Master Plumber numbers. Our guide to Texas permit and license rules shows how to run the search.

What to Do When an Attic Heater Leaks

An attic leak spreads into the ceiling before you see it, so these steps come first, and all of them are safe for most homeowners.

  1. Stop the water at the heater

    Climb up with a flashlight and turn the valve on the cold pipe above the tank clockwise until it stops. If the ladder or attic floor feels unsafe, close the main at the street meter.

  2. Cut the heat

    Set a gas heater's control knob to off, or flip the electric heater's breaker at the panel.

  3. Look at the pan line outside

    Find the pipe from the pan where it comes out under the eave. A steady drip there means water is reaching the pan and draining away.

  4. Watch the ceiling under the heater

    A bulging or sagging spot is holding water. Keep people and furniture out from under it and set a bucket below.

  5. Leave the house at any gas smell

    Phone your gas utility once everyone is outside.

Call Now and Tell Us Where the Water Is Coming From

Tell us your city, whether the heater is gas, electric or tankless, and where the water is showing.

Call (512) 325-0362

Our Service Areas in Houston, TX and Nearby Communities

We answer leak calls from every part of Houston, TX and across Greater Houston, and all Texas service areas are listed together. Four nearby cities each get a page of their own.

Single-storey brick ranch home on a flat lot in Houston, TX, a house type that often has an attic water heater
4nearby cities

Nearby cities with their own page

  • Brick ranch home on a wooded lot under tall pines in Conroe, TX
    77301

    Conroe, TX

    Montgomery County seat, north of Houston

    Conroe, TX pumps its drinking water from wells, and contractors there must register with the city before filing a permit. See our page on Conroe leak repair.

  • Mid-century ranch home with a low-pitched roof under mature trees in Dallas, TX
    75214

    Dallas, TX

    Dallas County seat, DFW east

    NOAA's Love Field normals show 23.1 freezing nights a year in Dallas, TX, more than twice the count at Bush Intercontinental. See our page on Dallas leak repair.

  • Limestone Hill Country style home with a metal roof on a sloping lot in Austin, TX
    78704

    Austin, TX

    Travis County, Central Texas

    Austin, TX writes its own amendments to the Uniform Plumbing Code, so its permit details differ from Houston's. Read about Austin water heater leaks.

  • Cream limestone ranch home under a live oak in San Antonio, TX, typical of the city's 1960s housing
    78209

    San Antonio, TX

    Bexar County seat, South-Central Texas

    SAWS lists typical hardness of 15 to 20 grains per gallon in San Antonio, TX, so sediment inside the tank is a common cause there. See our page on leak repair in San Antonio.

  • Texas Medical Center
  • George Bush Intercontinental Airport
  • ZIP 77007
  • ZIP 77008
  • ZIP 77024
  • ZIP 77055
  • ZIP 77079
  • ZIP 77092

FAQs About Water Heater Leak Repair in Houston, TX

Houston callers ask us these about cost, repairs, rentals and electric heaters.

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What does fixing a leaking heater cost in Houston?

A valve or joint repair costs a fraction of a new heater. The leak source sets the price, and a Houston replacement adds the city permit and inspection. National cost ranges are listed on our statewide leak repair page.

Can the leak be repaired, or does the heater need replacing?

It is repairable when the leak is at a valve, a joint or a gasket. When water comes through the tank shell, corroded steel under pressure can't be patched, so the heater comes out and a new one goes in.

Can a landlord use the homeowner permit for a Houston rental?

No. The City of Houston issues its Homeowner's Plumbing Permit only for the homestead the owner occupies. Replacing the water heater in a rental needs a permit pulled by a master plumber registered with the city.

Do you repair leaking electric water heaters in Houston?

Yes. Switch off the heater's breaker and close the cold supply first. On an electric tank we check the element gaskets first, then both valves, and repair the part or replace a failed tank.

Call for Water Heater Leak Repair in Houston, TX

Tell us whether the heater sits in the attic, the garage or a closet, and how fast it is dripping. We answer calls 24/7 and talk you through shutting the heater off.

Call (512) 325-0362