Signs to document
- water around the tank
- no or inconsistent hot water
- rust-colored water
- popping or rumbling
- error code on tankless equipment
Water heaters
Safety checks and scope questions for tank and tankless water-heater problems.
Turn off power or fuel only if you can do so safely and follow the equipment instructions. Shut off the water supply for an active tank leak. Water near electrical equipment, gas odor, or combustion concerns require immediate professional attention.
Compare the written scope
Ask what test isolated the fault and what evidence supports the recommendation. A symptom alone does not identify every underlying cause.
Confirm labor, materials, model numbers, permits, access, disposal, cleanup, startup, and any walls, floors, landscaping, or finishes that another trade must restore.
Request invoices, warranty terms, permit or inspection records when applicable, equipment settings, test results, and clear instructions for operation and maintenance.
Verify before hiring
Federal guidance for finding and addressing household water leaks.
State licensing and public information for plumbing and gas-fitting work.
Utility-location guidance before digging or excavation.
State consumer guidance on licensing, references, insurance, contracts, and payments.