Yes — Mainstream offers maintenance plans for tankless water heaters as part of the Mainstream Maintenance Plan, plus stand-alone annual descaling service. Tankless units need annual descaling in our hard-water region to maintain efficiency, prevent error codes, and protect the warranty.
Tankless maintenance
- Annual descaling with vinegar or commercial solution
- Inlet filter cleaning
- Vent system inspection
- Flame sensor and burner cleaning (gas)
- Heating-element check (electric)
- Software and error code review
Sign up for the Mainstream Maintenance Plan, or schedule one-time service via our tankless water heater service.
