Drying only works if the water has actually stopped. When the source is obvious — storm water that came in and drained — skip ahead to Step 05. But if carpet is wet and nobody knows why, baseboards are peeling, or a damp spot keeps coming back, read the signs before you dry, patch or close anything up:
- It follows the rain. Water shows up during or right after wind-driven rain; stains gather around windows and doors; carpet is wet along an exterior wall. That's failed window or door seals, or flashing — a glazier or window contractor's job.
- It's there rain or shine. Moisture that never fully dries, near a bathroom or kitchen wall, a musty smell, a water bill that jumped, a warm or damp patch on the slab, or a faint hiss when the house is quiet — that's a plumbing leak, supply line or drain. Call a plumber who does leak detection (acoustic listening gear, thermal cameras) before anyone opens a wall: pinpointing the leak first means one small cut instead of a torn-up room.
- It's coming up, over a wide area. Water at floor level across a whole room or more, new cracks, doors that suddenly stick — think slab, foundation or groundwater. Call a foundation specialist, and walk the outside of the house too: the ground should slope away from the walls, and downspouts shouldn't dump water against the foundation.
- The stain is on the ceiling. That's the roof — but the stain often sits well away from the actual leak, because water travels along rafters and drywall before it shows.
Suspect a plumbing leak? Don't wait for the plumber to stop the damage — close the shutoff valve for that fixture or zone now (the main shutoff if you can't isolate it), then make the call.
Two rules while you hunt: photograph everything before you move or cut it — where the water came from is part of your claim (Step 02) — and don't open walls until the source is confirmed. Demolition before diagnosis only makes the repair bigger.
And tell your insurer what you find (Step 03): the source affects how a claim is handled — a pipe that suddenly burst and a slow leak that seeped for months are generally treated very differently. Another reason to find the real source early, and to have the photos to prove it.