Before you hire anyone for tankless water heater installation and service

Ask for the CSLB license number and look it up at cslb.ca.gov. Confirm it is active, covers plumbing, and matches the name of the company you are hiring.

SoCalGas handles the meter and its side of the line. Your plumber handles the piping from the meter outlet to the unit and can tell you what to request.

Water heater and gas work often need a permit in California. Ask who pulls it, and check with the City of Fullerton if you want to confirm what your job needs.

Make and model, vent material and route, gas work, service valves, relief valve, condensate drain if needed, permit, haul away of the old tank, and the total before work starts.

Rarely. Most codes point to ignition, flow, venting or scale, and most of those are fixable. Write the code down and share it, so the diagnosis starts in the right place.

Ask us before the visit. Warranty repairs on some brands need a technician the manufacturer approves, so check your warranty paperwork first.