Hot Water 911 is Chicago-land's premier 24/7 water heater repair service. Like most things in todays world, hot water systems have grown technologically complex. Choosing the proper system, and keeping it running properly, is a job for highly trained technical experts. If you are experiencing problems with your commercial or residential water heater system not keeping consistent temperatures or you are running out of hot water, our consulting services can provide an analysis of your situation and a solution to your problem. And, at Hot Water 911, we have the single largest inventory of residential and commercial water heater and boiler parts for all major manufacturers.