Safety first: if there is fire, gas smell, or electrical risk near water, leave and call 911 or your utility first.
Turn off the cold supply valve at the top of the tank and the power or gas to the unit, then drain if safe. Tucson's hard water can shorten tank life; a plumber handles the heater, a restoration contractor handles wet floors and walls.
Need a restoration contractor in Tucson?
Tell us what happened and we'll refer you to an independent contractor. The referral is free to you.