3 services · Austin
Water heaters in Austin, TX
Most tank water heaters last about 8 to 12 years. A plumber can often repair a heater that stops making hot water, but a tank that leaks from the bottom has failed and needs to be replaced. Tankless heaters last longer but cost more to install, especially if the gas line or venting has to change.
- Licensed local plumbers
- The problem explained before work starts
- Price agreed before the job begins

Water heaters services in Austin
Water heater repair
UrgentIf a gas water heater has no hot water, the pilot, thermocouple or gas valve is the usual cause; on an electric heater it's usually an element or thermostat. Those parts are repairable. A tank that leaks from the bottom can't be repaired and needs to be replaced.
Water heater replacement in Austin
A leaking tank or a heater past about 10 years old is usually replaced rather than repaired. A proper install includes a permit, correct venting (adjusted for altitude where needed), an expansion tank where required, a drip leg on the gas line and a relief valve discharge pipe.
Tankless water heaters
A tankless water heater heats water as it flows, so it doesn't run out, but it needs a larger gas line, its own venting and a unit rated for your elevation. Installed correctly and descaled regularly, it can outlast a tank heater.
Local conditions
Water heaters in Austin: what's different
Austin's hard water causes mineral buildup in tank heaters, tankless units and fixtures across the city. Regular flushing and descaling extend heater life, and many homeowners add a softener.
Many Austin homes have heaters in attics or garages, and permits for replacements come from the City of Austin Development Services Department.
Tankless heaters are common in newer Austin subdivisions like Mueller and Circle C. In hard water they need yearly descaling, and switching an older central Austin home from a tank to tankless often means a larger gas line and new venting, which raises the installed cost.
- Water and sewer in Austin
- Austin Water provides water and wastewater service inside the city.
- Permits in Austin
- Plumbing permits are issued by the City of Austin Development Services Department.
Austin housing and plumbing
Central neighborhoods like Hyde Park and Travis Heights have older homes with cast-iron drains and clay sewer laterals; newer subdivisions are slab construction with PEX.
Other Austin conditions that affect plumbing
- Roots in older laterals: Live oaks and pecans in central Austin send roots into clay sewer laterals, causing repeat backups.
- Hard water: Mineral buildup affects water heaters, tankless units and fixtures across the city.
- Freeze exposure: Rare hard freezes split pipes in homes with plumbing in attics and exterior walls.
- Winter Storm Uri: The February 2021 freeze and power outages burst pipes throughout Austin, and many homeowners have since added pipe insulation and learned to drain lines during long outages.
Neighborhoods and ZIP codes
Plumbers on Thawline cover Austin and Travis County, including Hyde Park, Travis Heights, Zilker, Mueller, Circle C, Allandale. ZIP codes: 73301 · 73344 · 78701 · 78702 · 78703 · 78704.
When to call a plumber in Austin
- No hot water, or hot water that runs out much faster than it used to
- Water pooling around the base of the tank
- Rumbling or popping from the tank
- Rusty or smelly hot water
- A pilot that won't stay lit or a tankless unit showing an error code
- A heater more than 10 years old before it fails
How these problems start and how to choose between repair options is covered in the water heaters guide.
Water heaters questions in Austin
Should I descale my tankless water heater in Austin?
How long does a water heater replacement take?
More plumbing in Austin
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