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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
Plumber using pliers on a water heater connection

Water heaters services in Austin

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?

Yes. Austin's hard water builds scale in the heat exchanger. Most manufacturers recommend descaling at least once a year in hard-water areas.

How long does a water heater replacement take?

A like-for-like tank swap usually takes two to four hours. Switching to tankless or moving the heater can take most of a day because of gas, venting and electrical changes.

More plumbing in Austin

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