Water heater repair in Austin, TX

Austin water, softened but not soft

Austin Water draws from Lake Austin and Lake Travis, reservoirs on the Colorado River in the Highland Lakes chain, and treats it at the Ullrich, Davis and Handcox plants. The Colorado runs through limestone country and arrives hard, so the city lime-softens the water during treatment. What reaches Austin taps is moderately hard: easier on heaters than San Antonio's Edwards Aquifer water, but still enough to build sediment over a few years and to scale tankless heat exchangers.

Step outside the Austin Water service area and the picture changes. Many homes in the Hill Country west of town, around Dripping Springs, Bee Cave and parts of Lakeway, are on wells drilled into limestone or on smaller utilities with harder water. Those homes often see heavy sediment and short element life, and some deal with sulfur smells from well water.

For most Austin city homes, a flush every year or two and a yearly tankless descale are plenty. Hill Country well homes should flush more often and consider a softener.

From bungalow closets to new-build attics

Austin's housing spans a century. Central neighborhoods such as Hyde Park, Travis Heights, Clarksville, Bouldin Creek and East Austin are full of small pier-and-beam bungalows and cottages from the 1920s through 1950s. Their water heaters often sit in a hall closet, a back porch enclosure or a shed-like utility room, and many have been replaced several times with whatever fit.

Post-war and 1970s through 1990s neighborhoods across North, South and Northwest Austin are mostly slab ranch homes with the heater in the garage. The newer growth, in Mueller, along the Domain, and out in Round Rock, Pflugerville, Cedar Park, Leander and Buda, is dominated by two-story homes with attic heaters or tankless units that builders install as upgrades.

Austin's many infill projects, where an old bungalow is replaced by two modern homes or a duplex, almost always use tankless units mounted outside or in a utility closet, which brings its own maintenance needs.

The 2021 freeze and Austin water heaters

The February 2021 winter storm hit Austin hard. Days of sub-freezing temperatures combined with widespread power outages froze pipes in attics, exterior walls and pier-and-beam crawlspaces across the city. Tankless units mounted on exterior walls froze when they lost power to their freeze protection, and many had to have heat exchangers replaced. Austin Water also issued a boil-water notice as the system struggled.

If you have an exterior tankless unit, ask your plumber how to drain it if a long freeze and power outage are coming. If your heater or its lines are in an attic or crawlspace, insulation on the supply lines is cheap protection. After any hard freeze, check around the heater for water before turning the supply back on.

The problems plumbers see most in Austin

• Closet heaters in old bungalows with cramped access and venting that has been changed many times.
• Attic tank leaks in newer two-story homes, especially where the drain pan line has clogged.
• Exterior tankless units with scale codes, or damage left over from a freeze.
• Hill Country well water filling tanks with sediment and causing rotten-egg smells.
• Pilot outages in drafty pier-and-beam homes during cold snaps.
• Sediment rumbling in garage tanks that have not been flushed in years.

Typical water heater prices in Austin

Austin prices run a little above the Texas average, reflecting the city's labor market. Old bungalow closets and attic installs sit at the top of each range.

Permits and licensing in Austin

Texas licenses plumbers through the Texas State Board of Plumbing Examiners, where you can check any license. The City of Austin's Development Services Department requires a permit for water heater replacement, with an inspection covering the gas or electrical connection, venting, relief valve discharge and the pan for attic installs. Round Rock, Cedar Park, Pflugerville and other surrounding cities issue their own permits, and some unincorporated areas fall under county rules.

Before you approve a replacement in Austin, get the plumber's TSBPE license number and confirm the city permit is in the price.

Heat pump water heaters and Austin Energy

Austin Energy, the city-owned electric utility, has a long history of efficiency programs and has offered rebates for heat pump water heaters. Combined with federal tax credits for qualifying units, that can take a meaningful bite out of the higher purchase price. Austin garages stay warm much of the year, which is exactly what heat pump units want, and the cool air they exhaust is welcome in summer.

Programs and amounts change, so check what is available when you are ready to replace. A heat pump unit needs a 240-volt circuit (or a newer 120-volt model) and some open space around it, so a cramped bungalow closet usually is not the right spot.

Repair or replace in an Austin bungalow

Closet heaters in Central Austin's older homes deserve a slightly different repair-or-replace calculation. Swapping a tank that sits in a narrow hall closet, with a flue running up through the attic, is slower and pricier than a garage swap, so a reasonable repair on a tank under ten years old usually wins. But if the closet venting is undersized or rusted, or the closet lacks proper combustion air, replacement time is the moment to fix it properly, often by moving to a direct-vent or tankless unit.

Many owners of these homes also take the chance to move the heater out of the living space altogether, into a new exterior utility closet or under the house on pier-and-beam lots. A plumber familiar with older Austin homes can tell you whether that is practical before you commit.

Around Austin

Round Rock and Pflugerville to the north have large subdivisions from the 1990s and 2000s whose original heaters are now being replaced, many of them in attics. Cedar Park and Leander to the northwest are newer and full of builder-installed tankless units. Buda and Kyle to the south are among the fastest-growing areas in the region. West toward Lakeway, Bee Cave and Dripping Springs, larger homes on wells or small utilities face the hardest water in the metro.

Water heater questions from Austin