Tankless Water Heater Installation & Repair Houston
Upgrade to a tankless water heater and enjoy endless hot water while saving energy. Our Houston plumbers install, repair, and maintain all major tankless brands including Rinnai, Navien, and Rheem.
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Tankless Water Heater Services We Offer
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How much does tankless water heater installation cost in Houston?
Tankless water heater installation in Houston costs $2,500-$5,000 including the unit and labor. Gas tankless units typically cost more due to venting requirements. Electric tankless units are less expensive but may require electrical panel upgrades.
Source: Houston Home Services Network, 2025
Tankless Water Heater Statistics
Tankless Water Heater Installation Pricing
| Service | Low | Average | High |
|---|---|---|---|
| Gas Tankless (Whole House) | $3,000 | $4,000 | $5,500 |
| Electric Tankless (Whole House) | $2,000 | $2,800 | $3,500 |
| Point-of-Use Tankless | $300 | $500 | $800 |
| Tankless Descaling/Flush | $100 | $150 | $200 |
Prices include unit and installation. Gas units may require additional venting.
Key Facts About Tankless Water Heaters
Houston's hard water requires annual descaling
Prevents scale buildup that reduces efficiency
Gas tankless requires proper venting
Must be vented outdoors through wall or roof
Electric may need panel upgrade
100+ amp circuits required for whole-house units
Qualifies for energy rebates
Check CenterPoint Energy for current rebates
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