Endless Hot Water. Lower Energy Bills. 20+ Year Lifespan.
Tankless water heaters — also called on-demand or instantaneous water heaters — heat water only when you need it, eliminating the standby energy loss of a traditional tank. The result is virtually unlimited hot water and energy savings of 25–50% compared to a conventional tank heater. Texas Legacy Plumbing are certified installers for the leading tankless brands and have the experience to properly size, install, and maintain these systems in Central Texas homes.
Call us now for fast, honest service — or request a free quote online.
Call (512) 787-5713 Request a QuoteRecognizing these signs early can save you significant repair costs. When in doubt, call us — we'll give you an honest assessment.
Families that run out of hot water during back-to-back showers are ideal candidates — tankless systems provide continuous hot water as long as demand doesn't exceed the unit's flow rate.
Tankless heaters are 25–50% more energy efficient than tank heaters because they don't maintain a standing reservoir of hot water around the clock.
If your tank heater is approaching 10+ years, replacing it with a tankless system is a smart long-term investment.
Tankless units are wall-mounted and take up a fraction of the space of a tank heater.
Quality tankless units last 20+ years with proper maintenance — nearly double the lifespan of a tank heater.
Tankless heaters are ideal for properties with intermittent use — no energy is wasted maintaining a hot tank while the property sits empty.
We believe in transparency at every step. Here's exactly what to expect when you call Texas Legacy Plumbing.
Proper sizing is the most critical step in a tankless installation. We calculate your peak simultaneous demand (showers, dishwasher, etc.) and select a unit with adequate flow rate and BTU output for your home and the Central Texas climate.
Most high-performance tankless units require a larger gas line (¾" or 1") and dedicated venting. We assess your existing infrastructure and quote any upgrades required before work begins.
We install the unit, upgrade the gas line if needed, install sealed direct-vent PVC or stainless exhaust, and ensure proper condensate drainage for condensing models.
Hard water — extremely common in Central Texas — is the leading cause of premature tankless failure. We'll let you know if a water softener or scale filter is advisable to protect your investment.
We test the system at full load, program your temperature settings, and walk you through basic operation and filter cleaning so you get the most from your new system.
We offer annual descaling and tune-up service to keep your tankless heater running at peak efficiency for decades.
Texas Legacy Plumbing serves Liberty Hill, Austin, and the entire Central Texas metro. Call now for same-day service or schedule online.
Everything you need to know before you call. Have a question we haven't answered? Call us directly.
A complete gas tankless installation typically runs $1,500–$3,000 depending on the unit size, gas line upgrades needed, and venting requirements. We provide a detailed quote before any work begins.
Yes — properly sized whole-home units from brands like Rinnai, Navien, and Noritz can supply multiple simultaneous fixtures. We'll size the system to match your specific household demand.
Annual descaling (flushing with white vinegar or descaling solution) is the primary maintenance task in Central Texas due to hard water. The inlet filter screen should also be cleaned periodically. We offer an annual maintenance plan.
Tankless heaters eliminate running out of hot water, but they don't eliminate the wait for hot water to travel through your pipes. A recirculation pump can address this if immediate hot water at every fixture is desired.
We strongly recommend one for Central Texas homes. The very high water hardness in this region accelerates mineral scale buildup inside tankless heat exchangers, reducing efficiency and lifespan.
