
Endless hot water and lower bills, if the unit is sized, vented, and maintained for Austin's hard water. We install, repair, and descale tankless systems, and we tell you honestly when a tank is still the better buy.

A tankless unit heats water on demand through a narrow heat exchanger. Austin's hard water leaves scale in that exchanger, and without an annual descale the unit loses efficiency, throws error codes, and fails early. Most tankless complaints we see come down to skipped maintenance or an undersized install.
We size the unit to how your household actually uses hot water, confirm the gas supply and venting can support it, and set you up on a flushing schedule. If a conventional tank is still the smarter spend for your home, we tell you that first.
Our line is answered around the clock at (512) 645-1441. Tell us what is going on and we give you the next available options, often same-day.
A licensed plumber inspects the real problem and explains it plainly, English or Spanish. You see the price before any work begins. No surprises, no upsell pressure.
We do the work cleanly and to code, test it, and leave your space the way we found it. Every job is backed by our warranty.
"Josh and his team did a great job replacing our water heater. We called on a Saturday, and by Sunday afternoon we had a new water heater installed. Thank you!"
"Highly recommend. Joshua explained everything very clearly and gave great advice. He updated our water heater so it was to code, and the work was great!"
"Eddie made time and came over the same day. He was thorough in diagnosing my water heater issue and finding its root cause. If I ever have a plumbing issue, I'm definitely calling Rooter-Man."

Replacing or installing a water heater? Take $100 off with Rooter-Man.
Cannot be combined with any other coupon. Restrictions may apply. Valid Jan 1 through Dec 31, 2026. Call to Claim (512) 645-1441New to Rooter-Man of Austin? Save 5% on your first service.
Cannot be combined with any other coupon. Restrictions may apply. Valid Jan 1 through Dec 31, 2026. Call to Claim (512) 645-1441For many homes, yes: endless hot water, lower standby losses, and a longer service life. The catch is hard water. A tankless unit here needs annual descaling to keep working the way it should. We walk through your usage and the install requirements and give you a straight answer.
The most common causes are scale in the heat exchanger, a clogged inlet filter, ignition or gas supply problems, or a unit that is undersized for simultaneous use. We diagnose the actual cause before recommending a repair.
Often, yes. Gas tankless units usually need a larger gas line and different venting, and electric units need significant electrical capacity. We evaluate all of it up front so there are no surprises in the quote.
Yes. The $100 off water heater install applies to tankless installs too, valid through Dec 31, 2026. It cannot be combined with other coupons.
Yes. Our phone line is answered 24/7, so you can call day or night to describe the problem and get on the schedule. Our crews run during regular service hours, and we work to get a licensed plumber out at the first available appointment, same-day whenever possible.

Licensed M40109, family-owned since 2012. Tankless sized and installed to code, maintained for hard water, and backed by our warranty. $100 off installs through 2026.