Tankless Water Heater Installation
Expert tankless water heater installation and conversion. Endless hot water, lower energy bills, and a unit that lasts 20+ years.

About this service
Tankless water heaters heat water on demand, so you never run out of hot water and you stop paying to keep 40 or 50 gallons heated around the clock. The result is lower energy bills (up to 34% savings for average households), endless hot water, and a compact unit that lasts 20+ years. Installation requires expertise: proper gas line sizing, dedicated venting, condensate drainage, and electrical connections. Our technicians are factory-trained on all major brands including Rinnai, Navien, Noritz, and Takagi.
How much does a tankless water heater cost in the Bay Area?
Tankless water heater installation in the San Jose and South Bay area typically ranges from $2,500 to $4,500 including the unit and full installation. The cost depends on whether you are replacing an existing tankless unit or converting from a traditional tank, which requires additional gas line sizing, dedicated venting, and sometimes electrical work. Tankless water heaters heat water on demand rather than storing it, which can reduce water heating costs by up to 34% for average households. They also last 20 or more years compared to 8 to 12 years for a standard tank. Popular brands installed in the Bay Area include Rinnai, Navien, Noritz, and Takagi. Arcune Plumbing provides free in-home estimates and handles the complete installation including permits and inspection.
What's included
Tankless Water Heater Installation by city
Frequently asked questions
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Typical Cost
$2,500 - $4,500
Includes the unit and full installation. Cost varies based on whether you're replacing an existing tankless or converting from a tank model. Free in-home estimates.