Open 24/7 · Austin, TX

Water Heater Repair in Austin, TX

Water heater repair in Austin begins with what the tank is doing: silent, noisy, leaking or lukewarm. Call any hour with the symptoms. Same-day service is available.

Emergency? Call now, 24/7(737) 717-0737
Cutaway of a home showing the plumbing systemWater main and sewer main under the street, a water heater in the garage, a toilet, a kitchen sink, drain lines and the sewer line. Numbered hotspots link to services.Water mainSewer mainWater heater1Drains2Leaks and pipes3Sewer line4Toilets and fixtures5
  1. Say gas or electricAnd where the heater sits: closet, garage or attic.
  2. Match the symptomNo heat, short supply, noise, rust or a leak.
  3. Repair or replaceYou hear which is the sensible choice.
What we help with

Water heater repair in Austin and the choices that follow

Some faults are simple repairs. Others point toward a new unit.

Water heater replacement in Austin

When the tank is leaking or worn out.

Water heater replacement in Austin details →

Tankless water heater in Austin

A wall-mounted on-demand alternative.

Tankless water heater in Austin details →

Gas leak repair

A gas smell near the unit is urgent.

Gas leak repair details →

Water filtration in Austin

Treating water to cut scale on the heater.

Water filtration in Austin details →
Start here

Water heater problems we repair in Austin

Match what you see or hear. The symptom narrows the fault before anyone touches the tank.

No hot water at allA tripped breaker, a failed element or a gas heater that will not light.No heatHot water runs out after a couple of minutesA bad lower element or a tank full of sediment.Runs outPopping, rumbling or knocking from the tankScale and sediment trapped under the water.NoiseRusty or cloudy hot waterCorrosion inside the tank or sediment stirred up.ColorWater pooling around the baseA leak from the tank body means the tank is done.LeakPilot light keeps going outA failing thermocouple or a draft on a gas unit.PilotWater too hot or not hot enoughA thermostat that drifted or failed.TemperatureGas smell near the heaterLeave the house and call from outside.Gas
Why call us

Why call for water heater repair at any hour

A cold shower is irritating. A leaking tank is a flood. The call sorts which one you have.

  • Open all day and nightA heater fails on its own schedule, often in the evening.
  • Same-day service is availableMost heater faults are better fixed the day they show up.
  • Gas and electric unitsThe call covers both and asks which you have.
  • A straight answer on repair versus replacementNot every fault justifies a new tank.
  • One number for all plumbingA leaking heater often takes a drain pan, a valve or a pipe with it.
We vs others

Water heater repair in Austin compared with waiting it out

Lukewarm water tempts people to wait. Here is what waiting costs and what calling gets you.

UsOnion Creek PlumbingvsMany other plumbing companies
AvailabilityOpen 24 hours, 7 daysCold mornings and holiday evenings included.A schedule with office hours
Reaching someoneA person asks gas or electric firstThat one answer routes the call.A contact form
How soonSame-day service is availableA leak or gas smell is handled first.A week for a part
Jobs handledElements, thermostats, valves, gas controls, tank replacementRepair or swap on the same call.Repair only, or replace only
Local awarenessKnows Austin Water reported 4.1 to 7.4 grains per gallon in 2025Scale builds in any tank at that level.Treats water as the same everywhere
Price clarityThis page explains what moves the price. Ask about pricing when you call.Ask before parts are ordered.A price quoted after the tank is open

Based on what is typical. Individual companies vary.

How it works

How a water heater repair call in Austin goes

The questions on the phone decide what comes with the plumber.

  1. Gas or electric

    And roughly how old the unit is.

  2. What changed

    Last hot shower, any noise, any wet spots.

  3. Test the fault

    Power, thermostat, elements, gas control, valves.

  4. Fix or advise

    Repair if it makes sense, or explain replacement options.

Pricing

What moves the price of water heater repair in Austin

A thermostat and a failed tank sit at opposite ends. These factors place your job between them.

The failed part

Elements and thermostats are small parts. A gas control valve costs more. Ask about pricing when you call.

Tank age

An older tank may fail again soon, which affects whether repair makes sense.

Where it sits

A garage floor is easy. A tight attic or a closet with little room takes more time.

Gas or electric

Different parts, different tests, different safety steps.

Sediment and scale

A heavily scaled tank may need flushing before repair holds.

Have this ready for the call

  • Gas or electric and the unit’s age if known
  • The exact symptom and when it began
  • Where the heater sits and how to reach it
  • Any recent power trips, storms or work on the house

Ask about pricing when you call.

Call now, 24/7(737) 717-0737
Inside the tank

Parts that fail in a tank heater and what each one does

Six parts account for most repair calls

A tank heater is a steel cylinder with a heat source, a safety valve and a rod that sacrifices itself to protect the steel. Cold water enters through a dip tube and sinks to the bottom, where an element or burner heats it. Hot water rises and leaves at the top. The thermostat reads the temperature and switches the heat. The temperature and pressure relief valve opens if heat or pressure climbs too high.

Each part has a typical way of failing. Elements burn out. Thermostats drift. Anode rods dissolve and leave the tank walls exposed. The relief valve can weep if pressure is high. The drain valve gets clogged with sediment. A repair is usually one of these parts. If the steel itself leaks, no part will fix it, and water heater replacement in Austin is the next page to read.

Parts of a tank heaterParts of a tank water heaterCold water inletand dip tube (dashed)Anode rodcorrodes in place of the tankScale and sedimentsettle here in hard waterHot water outletRelief valveand discharge pipeThermostatand controlsDrain valvewhere the tank is flushedGas burner or electric elements
A typical tank water heater, simplified.
Symptom to cause

Reading your water heater repair in Austin from the symptoms

What you noticeLikely causeRepair or replace
No hot water, electric unitTripped breaker, failed element or thermostatRepair
No hot water, gas unitPilot out, thermocouple or gas controlRepair
Hot for two minutes, then coldFailed lower element or heavy sedimentRepair
Rumbling and poppingScale hardened at the tank bottomFlush, repair
Rust-colored hot water onlyAnode rod spent or tank corrodingCheck tank
Water at the base of the tankFitting leak, or the tank wall itselfDiagnose
Leak from the tank bodySteel has failedReplace
Rough mapping. A plumber confirms by testing.

Noise is the symptom people often ignore. The water heater noise guide sorts out popping, humming and ticking one sound at a time. If you are deciding between a fix and a new tank, repair versus replacement lays out the logic.

Austin water and your tank

How Austin Water’s hardness shows up inside a heater

A moderately hard supply leaves scale on the heating surfaces

Austin Water reported 2025 hardness between 4.1 and 7.4 grains per gallon, an average near 5.4, from Colorado River water collected through Lake Travis and Lake Austin. That is a range across the whole system, and your own address may differ or be on another supplier, so look at your bill or ask your water supplier. At moderate hardness, minerals settle out of heated water and form a crust on elements and a layer at the bottom of the tank.

The crust insulates an electric element, which then runs hotter and fails sooner. In a gas tank the sediment sits between the burner and the water, so the burner works harder and the steel at the bottom takes the heat. The result is the rumbling you hear and, eventually, a shortened life. A yearly flush helps in either case. A softener or filter upstream helps more; see water filtration in Austin and the hard water guide.

Scale signs
  • Rumbling when it heatsWater boiling through sediment.
  • Shorter hot supplyScale takes up room in the tank.
  • Cloudy hot waterMineral flakes after a flush or a pressure swing.
  • Element failuresScale-coated elements burn out sooner.
  • Dull fixtures elsewhereThe same minerals mark faucets and glass.
Signs that scale is the real problem.
Fuel type

Gas or electric heater: different faults, different safety steps

ItemGas heaterElectric heater
Heat sourceBurner and pilot or igniterTwo heating elements
Common failureThermocouple, gas control, dirty burnerElement, thermostat, tripped breaker
First safety stepSmell gas: leave and call from outsideCut the breaker before opening a panel
Needs ventingYes, a flue to the outsideNo
Recovery speedFasterSlower
Typical locationCloset, garage, atticCloset, garage, attic
Know which one you own before the call.

If you ever smell gas at a heater, treat it as an emergency. The steps are on our gas leak signs guide, and the gas leak repair page covers the repair. Never relight a pilot you are unsure about, and never bypass a safety switch to restore heat.

Where it sits

Closet, garage and attic: how location shapes water heater repair in Austin

A heater in the wrong place makes small leaks big

Texas houses often place heaters in garages and attics, and apartments tuck them into closets. Each location has its own risk. A garage heater sits near cars and stored boxes, and a leak there can go unseen. An attic heater, if it leaks, sends water through a ceiling. A closet unit may sit on flooring that soaks up water and hides rot.

A drain pan with a pipe to the outside catches slow leaks. If your heater is up high, check the pan periodically with a flashlight. Look at the relief valve discharge pipe for drips and at the base for rust streaks. In summer heat, an attic can reach temperatures that age the tank jacket, wires and valves faster, so a spring look-over is useful.

Heater check

  1. Look at the pan

    Dry means fine. Wet means call.

  2. Check the discharge pipe

    A steady drip suggests pressure or valve trouble.

  3. Read the label

    Age and fuel type are printed on the tank.

  4. Test the relief valve

    Only if you know how, and with a bucket.

A five-minute look twice a year.
Repair or replace

Deciding between water heater repair and a new unit

  1. Age of the tank

    Older tanks near the end of their service life rarely justify big repairs. See how long a water heater lasts.

  2. Where the fault is

    A part is repairable. A leaking steel tank is not.

  3. Repeat failures

    A second repair within a year is a sign.

  4. Household size

    A tank that no longer keeps up may need a larger one or a tankless unit; see tankless versus tank.

  5. Safety

    Gas control faults and corroded tanks lean toward replacing.

  6. What you plan next

    Selling or staying changes the sensible choice.

Service areas

Water heater repair coverage for Austin and the surrounding towns

Water heater calls from Austin use the same number as every other town we cover.

Water heater repair in Austin is on the same line as Kyle, Buda and the towns below. Say gas or electric and describe the symptom.

Towns within about 25 milesSchematic map of towns within about 25 miles of Kyle10 mi20 mi25 miBuda, about 7 miles1Maxwell, about 7 miles2Manchaca, about 9 miles3Austin, about 10 miles4San Marcos, about 11 miles5Martindale, about 11 miles6Lockhart, about 12 miles7Dale, about 15 miles8Wimberley, about 17 miles9Bee Cave, about 18 miles10West Lake Hills, about 21 miles11Cedar Creek, about 21 miles12Kingsbury, about 22 miles13Dripping Springs, about 23 miles14New Braunfels, about 24 miles15Lakeway, about 25 miles16Canyon Lake, about 25 miles17The Hills, about 25 miles18Kyle
Schematic map. Rings show distance from Kyle; positions are approximate.
Questions

Water heater repair in Austin: common questions

Why did my water heater stop making hot water?
On an electric unit the usual suspects are a tripped breaker, a burned-out element or a thermostat. On gas it is the pilot, the thermocouple or the gas control. The symptom and fuel type tell the plumber which to test first.
Can a water heater be repaired the same day in Austin?
Often. Same-day service is available. Common parts like elements and thermostats are quick to swap. A specialty part or a leaking tank may mean a different plan.
How much does water heater repair cost?
It depends on the part that failed, the tank’s age, how easy the unit is to reach and whether it is gas or electric. Ask about pricing when you call, and ask whether repair or replacement makes sense.
Why is the price different from one heater job to the next?
A thermostat takes little time. A gas control, a corroded fitting in a tight attic or a tank flush takes more. Ask about pricing when you call and raise it before parts are ordered.
What should I do if the water heater is leaking?
Shut off power or gas at the heater, close the cold-water valve above it, and put a bucket under any drip. A leak from the tank body means replacement. Call right away if water is spreading.
Is water heater repair in Austin worth it on an old tank?
It depends on the fault. A small part on a tank that is otherwise sound is worth fixing. A leaking or heavily corroded tank is not. A plumber can tell you honestly which situation you have.
Does Austin water cause heater problems?
Moderately hard water leaves scale on elements and at the bottom of the tank. Austin Water reported a 2025 range of 4.1 to 7.4 grains per gallon. Your address may differ, so check your bill.
What is that popping sound from my water heater?
Water trapped under hardened sediment boils and bursts through it. It means the tank needs flushing and perhaps a fresh look at hardness. Left alone, it shortens the tank’s life.
My heater is in the attic. Is that a problem?
It is a risk if there is no drain pan, because a leak runs through the ceiling. Check the pan and discharge pipe each spring. An attic heater also bakes in summer heat.
Should I turn the heater off if I go away?
For a few days it is not needed. For long trips, set a vacation mode or lower the thermostat. If you find a leak when you come home, close the cold-water valve to the heater.
The pilot light keeps going out. What now?
A weak thermocouple, a draft or a dirty pilot assembly causes it. Do not keep relighting if you smell gas. Call, and describe how often it goes out.
Why is my hot water brown?
Rust inside the tank or old pipes. If it clears after a minute of running, pipes are the likelier cause. If only hot water is brown, the heater’s anode rod or tank is the suspect.
Guides

Guides for water heater trouble

No hot water in Austin?

Call any hour for water heater repair in Austin. A person answers, and same-day service is available.

Call now, 24/7(737) 717-0737