What to Do in the First 24 Hours After Water Damage

Do not walk into standing water in a room with live outlets, submerged cords, or a wet electrical panel. If you cannot reach the breaker safely and dryly, call the utility or an electrician.

Treat water from sewage backups, toilet overflows past the trap, or outdoor flooding as contaminated. Avoid contact, keep children and pets out, and do not use a household vacuum on it.

• Cut power to affected circuits if you can do so from a dry position
• Watch for sagging ceilings — a bulging ceiling can release a large volume of water at once
• Wear boots and gloves; ventilate if you can do so without pulling in humid outdoor air

For plumbing failures, close the fixture shutoff if there is one; otherwise close the main. Everyone in the household should know where the main shutoff is and what tool it needs, before an emergency.

For roof or envelope leaks during a storm, you cannot stop the rain — so redirect it. Buckets, plastic sheeting, and a small drilled hole to relieve a bulging ceiling can limit the spread until conditions allow a proper look.

Photographs taken before cleanup are the strongest evidence you will ever have. Take wide shots that establish the room, then close-ups of the source, the water line on walls, and every affected item.

Add a short video walkthrough with narration — date, what you found, where the water came from. Note the time you discovered it. Keep receipts for anything you buy or rent.

• Wide, mid, and close-up photos of every affected room
• The failed component itself — the burst line, the appliance, the ceiling stain
• Serial numbers and model numbers of damaged appliances and electronics
• A written list of damaged contents with approximate age and value

Get standing water out with a wet/dry vacuum, pump, mops, or towels. Then lift what you can: pull up area rugs, move furniture off wet flooring, place foil or blocks under furniture legs, and take contents to a dry area.

Start air movement across wet surfaces and run a dehumidifier with the room closed. In humid climates, closing the space and dehumidifying beats opening windows.

Call your insurer early, even if you are unsure whether you will file. Ask what your policy requires you to do to mitigate damage — most policies obligate you to take reasonable steps, and doing so promptly supports your claim.

If you rent, notify the landlord or property manager in writing the same day. If you are a landlord or property manager, notify tenants of access needs and document your response times.