Drying & process
Water Under Laminate or Vinyl Plank Flooring: What to Do
Updated · Copperline editorial · 2 min read
Short answerWater under laminate or vinyl plank usually spreads farther than it looks, because it moves along the slab under the floor. Laminate swells and rarely recovers; vinyl plank is waterproof on top but traps water underneath. Boards usually need to be lifted so the slab can dry.
Signs of water under the floor
Look for:
- Swollen or peaking seams in laminate
- Soft or squishy spots
- Musty odor
- Water at baseboards
Why it matters
Trapped water under flooring on a slab can lead to mold and odor, even if the surface looks dry.
What restoration involves
Boards are removed, the slab and walls are dried, and flooring is replaced or reinstalled if undamaged.
Call a professional if
- Boards cupping or edges lifting
- Gaps closing or boards buckling
- Dark stains along seams
- Soft or spongy spots
Water Under Laminate or Vinyl Plank Flooring: What to Do: follow-up questions
Can laminate be dried in place?
Rarely. Most laminate swells and needs replacement.
Is vinyl plank waterproof?
The surface is, but water can still get underneath.
Every home differs; editorial standards.