Supplied & installed
Rinnai tankless water heater
Rinnai unit replacing an existing tankless, with descaling valves added if missing.
Starting at $6,345 installed
Tankless water heaters · We install & service Rinnai
Rinnai tankless water heaters, installed, flushed and repaired by our plumbers. Licensed, insured and bonded, CSLB #1156315. Open 24/7.
Rinnai has been making tankless water heaters longer than most brands have existed, and its units are all over the Bay Area. Plenty of the tankless heaters we service are Rinnais that have been running for 10 years or more.
We install and service Rinnai condensing and non-condensing tankless units for homes across Hayward and the East Bay — new installs, replacements of older Rinnais, and repairs on the ones still worth keeping.
If your Rinnai is under about 12 years old and the heat exchanger is sound, a repair usually makes sense. Past that, or with a leaking heat exchanger, a new unit is the better use of your money. We'll give you both numbers.
We install and service Rinnai products. Friendly Services is an independent plumbing company; brand names belong to their owners.
Prices
Final price confirmed on site before work starts. Prices are starting prices for a standard job. If your setup needs more, we tell you the difference in writing first, and you can cancel. Pay on completion. Free estimates.
Supplied & installed
Rinnai unit replacing an existing tankless, with descaling valves added if missing.
Starting at $6,345 installed
Supplied & installed
Replace a tank with a tankless unit: new venting, gas sizing and condensate line as needed.
Starting at $8,045 installed
Tankless water heaters in our shop · Our water heater service · All brands we install
Based at 773 W A Street in Hayward and serving the whole Bay Area, including:
Yes. Most Rinnai codes point to ignition, flame, venting or water flow problems that we can diagnose and repair on the first visit.
Yes. If your unit doesn't have isolation valves, we can add them so future flushes are quick.
Usually. It depends on gas line size and a vent route, which we check before quoting a conversion.
Yes. Our workmanship warranty covers our install; the unit's warranty stays with Rinnai.
Questions first?
Call and describe your setup. If you don't need to replace it yet, we'll tell you that.