How Does Water Damage Affect Laminate Flooring?
Last updated October 25, 2026
The short answer
What Happens to Laminate
Laminate flooring is not solid wood. It has a photographic layer over a high-density fiberboard core. That core absorbs moisture and swells. Once it swells, the floor does not return to its original shape. The top layer can also peel or bubble.
Water can seep through the seams between planks. It can also wick up from a wet subfloor. Over time, the swelling causes planks to lift and separate. You might notice the floor feeling spongy underfoot or see gaps at the edges.
- Buckling and warping at the seams
- Cupping where edges curl upward
- Discoloration or dark stains
- Peeling or bubbling of the top layer
- Musty odor from trapped moisture
How Fast Damage Occurs
Laminate can show damage within hours of a large spill. The speed depends on how much water is present and how long it sits. Standing water is the biggest threat. Even a wet mop left in place can cause issues.
High humidity can also make laminate swell over time. If you live in a region with humid summers, you know how that moisture in the air can affect wood-based materials. The sooner you dry the floor, the better your chances of saving it.
Assessing the Damage
First, check the source of the water. Is it from a leak, a flood, or a spill? The type of water matters. Clean water is less damaging than dirty water, which can leave stains and odors.
Look at the extent of the affected area. If only a few planks are wet, you might be able to dry them. If a large section is swollen or the subfloor is soaked, more extensive work is often needed. A water damage inspection can help you understand the scope of the problem and what steps to take next.
Drying and Cleaning Steps
Start by removing all standing water. Use towels or a wet-dry vacuum. Then, set up fans and dehumidifiers to dry the area. Open windows if the weather allows. Keep the room ventilated to help moisture escape. Move furniture and rugs out of the way so air can reach the floor surface.
Do not sand or scrape swollen laminate. That can damage the surface further. If the planks are cupped or buckled, they may need to be removed. For minor spills, drying thoroughly might be enough. For larger issues, removal is often the next step. Always check the subfloor for dampness, as trapped moisture can lead to mold growth.
- Remove standing water immediately
- Use fans and dehumidifiers
- Lift rugs and furniture
- Check the subfloor for moisture
- Dispose of soaked padding or underlayment
When to Replace Flooring
Laminate is often not worth repairing after significant water damage. The swollen core cannot be repaired. If the planks are warped or the subfloor is damaged, replacement is usually the practical choice. In many cases, the cost and effort of trying to salvage laminate is higher than simply installing new flooring.
Local water damage pros can help you decide. They can also handle the removal of damaged flooring. If you have hardwood elsewhere in your home, that is a different situation. For laminate, the focus is on getting the wet material out and preparing for new flooring. They can also help dry out the subfloor and check for any underlying issues.
Water damage does not wait
Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (313) 766-2970Frequently asked questions
Can I repair a single swollen plank?
Repairing a single plank is tricky because laminate planks lock together. You might be able to replace one if you have extra pieces and the edges are accessible. Otherwise, the floor may need to be taken apart and reinstalled.
Will laminate flooring dry out and flatten?
No. Once the fiberboard core swells, it stays swollen. Drying the surface does not reverse the damage. The floor may look dry, but the planks remain warped and weak.
Should I file an insurance claim for laminate damage?
Policies vary, and your insurer decides what is covered. Check your policy to see if water damage from a specific source is included. Document the damage with photos and keep records of any repairs.