When hot water stops working, it’s usually because the heater can’t heat efficiently or can’t stay running. Electric heaters often fail at the thermostat or heating element. Gas heaters can fail at ignition, the pilot system, thermocouple, or gas control valve. In many Metro Denver homes, sediment buildup can also reduce heat transfer and shorten the life of key parts. If you’re getting lukewarm water, running out of hot water too fast, or not getting any hot water at all, Done can diagnose the issue and make the repair needed to restore reliable hot water as quickly as possible.