Tankless Water Heater Repair in San Leandro, CA

Friendly Services repairs, services and installs tankless water heaters in San Leandro, CA, including Navien, Rinnai and Noritz. We are one town over in Hayward. Free estimates. CSLB #1156315. Call (510) 626-9773.

Repair

Call us when a tankless unit shows an error code, runs hot and cold, shuts down when a second tap opens, or gives no hot water at all. Tell us the brand and the code. We test the unit and find the real cause: scale in the heat exchanger, a blocked filter, a failed sensor or igniter, a venting fault or a gas supply that is too small.

Tankless in an older San Leandro house

Much of San Leandro was built before 1950, for a tank water heater in a closet or on a back porch. Fitting a tankless unit into a house like that takes more than swapping boxes. The gas line is usually too small and has to be upsized. The old vent cannot be reused. The unit needs power and a drain for condensate. Old galvanized water pipe may limit the flow the unit can deliver.

When any of that was skipped at install, the unit never works quite right. Tankless problems in older homes often trace back to it. We will tell you if that is what we find.

Service and descaling

A tankless heater needs its heat exchanger flushed on the maker's schedule. It is the single thing that most extends its life. If yours has never been done, book it before it shows a fault.

New tankless installation

If you are replacing a tank with tankless, we check gas, venting, power and water lines first and give you one complete price, with any upgrades in it. See tankless water heaters for the units we install. For tank heaters, see water heater repair in San Leandro.

About Friendly Services

Family-owned, with over 20 years in Hayward, serving all San Leandro ZIP codes: 94577, 94578 and 94579. License CSLB #1156315 (C-36 plumbing). $1M general liability cover and workers' comp. Five-year workmanship warranty on our own work. 100+ five-star reviews online. Se habla español.

San Leandro tankless water heater repair questions

Do you repair tankless water heaters in San Leandro?

Yes. We repair, service and install Navien, Rinnai and Noritz units and can look at other brands.

Can I switch from a tank to tankless in an older home?

Usually, yes. The gas line, venting and power often need changes first. We check and include them in one price.

Why does my tankless heater shut off?

Often the gas supply is too small, the unit is scaled up, or a sensor has failed. We test it to find which.

How often should a tankless heater be flushed?

Follow the maker's schedule for your model. If it has never been flushed, it is due.

Are estimates free?

Yes. Call (510) 626-9773.

Call (510) 626-9773

Licensed Insured Bonded 5-Year Warranty CSLB #1156315