Reviewed September 5, 2026. US Water Damage Pros provides independent homeowner guidance. It does not perform restoration work or dispatch restoration crews.
Start here: protect people before property
Water in a basement can reach outlets, extension cords, appliances, furnaces, water heaters, electrical panels and wiring you cannot see. Keep children and pets out of the area. Do not enter standing water, touch wet electrical equipment or use a switch if electricity may be involved.
The CDC advises turning off power only when the main switch can be reached from a dry location. If reaching it would require entering water, leave it alone and contact an electrician or emergency services as appropriate. Read the CDC's flooded-home safety guidance.
Your first-hour checklist
- Stay out of an unsafe area. Do not enter if water is near electrical equipment, the ceiling is sagging, the water is rising, you smell gas, or the source may be sewage or outdoor floodwater.
- Stop the water only if it is safe. If you can reach the fixture shutoff or main water shutoff without entering the wet area, turn it off. A plumber may need to repair the pipe. For a pipe-specific checklist, see burst pipe cleanup: what to do next.
- Identify the likely water source from a safe distance. A burst supply line is different from a drain backup, toilet overflow, groundwater or stormwater. Do not assume water is clean because it looks clear.
- Photograph before moving or cleaning. Take wide photos and short video of the pipe or source if visible, water level, affected rooms, walls, flooring, appliances and belongings. Note when you found the damage and when the water was shut off.
- Make only limited safe moves. Move dry, unaffected belongings only if the path is dry and safe. Do not carry wet items through clean rooms. Keep receipts for reasonable emergency measures.
- Choose the next appropriate call. An active pipe needs a plumbing repair. Water that reached finishes, carpet, wall cavities, electrical areas or more than one room may need assessment and drying by a qualified restoration provider.
Stay, leave, or get help?
It may be reasonable to remain in the home
when the water is contained, there is no electrical or gas concern, no sewage or floodwater is involved, the affected area can be avoided, and no one in the household is at immediate risk. Remaining in the home does not mean entering the affected basement or starting cleanup before the area is safe.
Leave the affected area and get urgent help
when there is standing water near electricity, a damaged electrical panel or appliance, a sagging ceiling, a gas smell, rising water, a structural concern, sewage, floodwater, or anyone has been injured or may be in danger. Call emergency services for immediate danger. A qualified electrician, plumber or restoration provider may each have different roles once the immediate hazard is controlled.
Get a qualified assessment before rebuilding
when water reached carpet padding, drywall, insulation, cabinets, flooring, wall cavities, a finished basement or a room below. A surface can look dry while moisture remains out of sight. The water damage assessment guide explains the questions a careful assessment should answer.
Clean water and contaminated water are not the same
A supply-line break may begin as clean water, but its risk changes with time, contact with dirty surfaces and the materials it reaches. Water from a toilet backup, floor drain, sewer, outdoor flooding or an unknown source should not be treated like an ordinary household spill. Keep people away, avoid contact, and use the sewage cleanup guidance or flood cleanup guidance for the situation you are facing.
The EPA cautions that contaminated water may require protective equipment and containment, and that fans should not be used before the water is known to be clean or sanitary. See the EPA's water-damage cleanup guidance.
When limited DIY action is reasonable
A homeowner may be able to mop or extract a small, contained clean-water spill after the source is stopped and the electrical area is confirmed safe. That does not extend to sewage, floodwater, unknown water, a large or long-standing leak, or water that reached porous materials or hidden spaces.
For safe, clean-water situations, prompt drying matters. EPA guidance uses a 24 to 48 hour response window to help prevent mold growth, while noting that the timing is a guide rather than a promise that mold will or will not grow. Fans and dehumidifiers can help with drying only after safety and water quality have been considered. EPA flood-cleanup guidance recommends cleaning and drying a home and its contents within 24 to 48 hours where possible.
Do not do this
- Do not enter a flooded basement to reach a breaker, outlet, appliance or electrical panel.
- Do not turn power on or off while standing in water, and do not use electrical tools in a wet area.
- Do not use household fans on water that may be sewage-contaminated or floodwater.
- Do not start tearing out drywall, insulation or flooring just to investigate the damage.
- Do not paint, seal or replace finishes before the source and drying questions are understood.
- Do not discard damaged belongings before photographing them and asking your insurer what it needs.
- Do not assume a general guide determines insurance coverage. Coverage depends on your policy and the cause of loss.
Keep the insurance conversation organised
Contact your insurer early if you may make a claim, ask what it needs documented, and keep photos, notes, receipts and written estimates together. Insurers commonly distinguish sudden accidental plumbing damage from other causes, but your policy wording and the facts of the loss control the answer. The National Association of Insurance Commissioners offers consumer guidance on burst-pipe claims, and the site’s water damage insurance claim process provides a practical documentation checklist.
What a restoration provider should clarify
US Water Damage Pros is an independent homeowner guidance resource, not the restoration contractor. Before hiring any provider, ask what it found, which rooms and materials are affected, what needs extraction or drying, how moisture will be checked, what the written scope includes, and how changes in cost or work will be approved.