The short answer
Visual Clues to Check
Start by scanning the floor surface in good light. Look for planks or tiles that have lifted, cupped, or buckled. Water makes wood swell, so edges that once sat flush may now stand proud. Discoloration, dark stains, or a dull finish can also signal moisture trapped underneath.
Check the baseboards and transitions between rooms. Gaps or cracks along seams often appear when the subfloor expands. If you have carpet, press down firmly and look for damp spots or a musty smell. These clues point to water that has traveled under the surface.
- Buckling or warped planks
- Discoloration or dark stains
- Cupped edges or lifted tiles
- Gaps at seams or baseboards
- Damp spots or musty odor on carpet
Feel for Soft Spots
Walk slowly across the room in bare feet or thin socks. Pay attention to any area that feels springy, soft, or uneven. Water weakens the subfloor, so a spot that gives under your weight is a strong sign of damage. Test the same spot with a hard object, like a screwdriver handle, to confirm.
Soft spots often appear near walls, under appliances, or around plumbing fixtures. If you have laminate or vinyl, a soft area may mean the underlayment has broken down. Mark every suspicious spot with tape or chalk so you can track the affected zone.
Use a Moisture Meter
A moisture meter is the most reliable tool for finding water under flooring. You can rent one from a local hardware store. Press the pins into the flooring material or use a non-invasive model that scans without leaving marks. Readings above normal levels confirm hidden moisture.
Test multiple points across the room, including areas that look fine. Moisture can travel sideways under the surface, so the visible damage may be far from the source. Record the readings and compare them. If the numbers vary, the higher spots are where water is pooling.
Look for Secondary Signs
Water under flooring often leaves clues elsewhere. Check the walls for peeling paint, bubbling wallpaper, or a damp baseboard. Warped drywall or a stained ceiling below the floor can also indicate a leak from above. If you have a crawlspace or basement, inspect the underside of the subfloor for water stains or mold.
Pay attention to the air. A musty, earthy smell usually means mold is already growing. If you see visible mold on the surface or smell it, you may need a mold professional to assess the extent. Do not ignore these signs, as they can spread quickly.
When to Call the Pros
If you find widespread soft spots, persistent moisture, or evidence of mold, it is time to call local water damage pros. They have the tools to locate the source and assess the damage. The work may involve removing the flooring and repairing the subfloor. The cost depends on the extent of the damage and the type of flooring.
Policies vary, and your insurer decides what is covered. Before any major work, document the damage with photos and notes. If you live in Milwaukee, keep your shutoff valve location written down so you can stop future leaks quickly. Acting fast limits the damage and reduces the chance of mold.
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Call Now (414) 348-0250Frequently asked questions
Can I find water damage under laminate flooring?
Yes. Laminate is sensitive to moisture, so look for swelling at the seams or edges. Press down on the surface; if it feels soft or springy, water may be underneath. A moisture meter can confirm, and you may need to remove the affected planks.
What does water damage under hardwood look like?
Hardwood often darkens, stains, or develops a grayish tint when wet. You might see cupping or crowning, where planks bow upward. In severe cases, the wood may split or crack. Feel for softness and check for a musty smell.
Should I remove my flooring to check for water damage?
Only if you suspect damage and can do it safely. Start with non-invasive checks like a moisture meter. If you find high readings, you may need to pull up a plank or tile to inspect the subfloor. If unsure, call the pros to avoid causing more damage.