$2,500 - $4,500

Tankless Water Heater Installation

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

Tankless Water Heater Installation service by Arcune Plumbing

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
Tank-to-tankless conversion
Gas line sizing and upgrade
Dedicated venting installation
Recirculation pump setup
Annual tankless maintenance and descaling

Frequently asked questions

For most homeowners, yes. Tankless units save up to 34% on water heating costs, provide endless hot water, last 20+ years, and free up valuable space. The higher upfront cost is typically recovered within 5 to 7 years through energy savings.
We install all major tankless brands including Rinnai, Navien, Noritz, and Takagi. Our technicians are factory-trained and can recommend the best model for your home.

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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.

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(650) 787-7061

Mon-Fri 7 AM - 5 PM

Same-day service available.

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