Timely tankless water heater replacement in Scottsdale, AZ can help prevent a lot of costly future repairs. Tankless water heaters require significantly less maintenance and upkeep than traditional water heaters. You can usually get away with either annual or semi-annual maintenance, and just single maintenance is enough to prevent costly repairs from happening in the first place. In most cases, repairing a tankless substitute will be both cheaper and easier than a traditional one that relies on electric or gas.