Stay safe first
If water is near outlets or the panel, do not enter. Call an electrician or your utility to cut power at the meter.
Step 1 — Stop the source
Shut the main water valve. If it is a sewer backup, stop using all drains and toilets in the house.
Step 2 — Document everything
Take wide and close-up photos and video before moving anything. Your insurer will ask.
Step 3 — Remove standing water
Use a wet/dry shop vac for small floods. For more than 2–3 cm across a large area, rent a submersible pump or call a restoration company.
Step 4 — Dry aggressively
Run dehumidifiers and fans for 48–72 hours. Drywall wet more than 24 hours usually needs to be cut back 30 cm above the waterline.
When to call a pro
- Sewage backup (Category 3 water — health hazard)
- Water touched insulation, drywall cavities, or electrical
- You smell mildew within 48 hours