Chandler Water Heater Leak Cleanup, Garage to Hall Closet

First Five Minutes

1. Close the cold-water valve on top of the tank, or the main shutoff if you can't reach it.
2. Turn off the power at the breaker for an electric tank, or set a gas unit's control to off.
3. Keep clear of hot water and don't drain the tank yourself unless you know how.
4. Photograph the tank, the floor and any wet walls.

Why Tanks Fail Here

Chandler's water is hard. The City's 2025 water quality report lists hardness of 10.1 to 16.8 grains per gallon. Minerals settle in the bottom of a tank over time. Add the Census Bureau's median build year of 1998, and a typical house here has had a quarter century of hard water running through its plumbing. Scale, age and heat all work against the tank and its fittings.

Where the Water Goes

On a slab, leaked water spreads under baseboards and into the bottom of drywall in adjoining rooms. Under tile it can travel farther than it looks. In attic installs, it soaks insulation and drops through the ceiling. We use meters and a thermal camera to trace it before anything is removed.

What We Do

• Extract standing water from the garage, closet or floor
• Pull wet baseboard and the lower strip of drywall if readings require it
• Dry the slab and wall cavities with air movers and dehumidifiers
• Log readings daily and photograph each step for your insurer
• Repair drywall, texture and paint once everything tests dry

Replacing the heater itself is a plumber's job. The City's homeowner permit manual lists like-for-like water heater replacement among work that doesn't need a building permit; moving or upsizing it is different, so ask.

If the leak went unnoticed for weeks, look at our page on mold remediation in Chandler. For other kinds of water damage, return to our Chandler home page.