Water Heater Replacement Cost (2026): Tank vs. Tankless
Texas hard water shortens tank life, so many homeowners replace a heater every 8–12 years. Here's what national 2026 data shows.
| Type | Installed cost |
|---|---|
| Standard tank (40–50 gal) | National average $1,348; most pay $882–$1,826 [1]; $600–$3,100 [2] |
| Tankless | Average $2,641; $1,406–$3,902 [3]; $1,400–$5,600 [2] |
| Hybrid heat pump | $2,000–$4,600 [2] |
Switching from tank to tankless adds work
Gas tankless units usually need a larger gas line and new venting; electric units often need a dedicated circuit or a panel upgrade [4]. Get those items itemized in the quote.
Repair first?
A bad thermostat, heating element or thermocouple is often a cheap fix. A leaking tank body cannot be repaired; replace it.
Flushing sediment once a year helps with Texas hard water. Installation of a water heater in Texas should be done by a TSBPE-licensed plumber, and many cities require a permit. Check a plumber's license.
Sources
- Angi, Water Heater Replacement Cost (2026)
- HomeGuide, Water Heater Installation Cost (2026)
- Angi, Tankless Water Heater Cost (2026)
- Appliance Checkup, Tankless Water Heater Cost 2026
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