Do not ignore electrical or gas hazards
A failed water heater can involve utilities as well as water. Avoid handling the appliance or entering standing water around electrical equipment when conditions are unsafe.
Garages and utility rooms can still sustain structural damage
Concrete may tolerate wetting differently than drywall, cabinetry or adjacent finished spaces. Water can also move under walls into rooms that initially look unaffected.
Remove bulk water, then inspect adjacent materials
Nearby baseboards, drywall, flooring and stored contents may need separate evaluation.
Complete drying before finish repairs
Replacing trim or wall finishes before the underlying area is dry can hide an unresolved moisture problem.
Talk through the situation by phone
Describe the source of the water, the affected area and whether the water is still entering the property.