What happens to wood floors when they get wet?

Author: Garnet Little  |  Last update: Tuesday, July 7, 2026

This occurs when excess moisture permeates the hardwood, primarily affecting the unfinished underside of the boards. As a result, the bottom of each board expands more than the top, leading to a distinctive wavy appearance and raised seams between individual courses of hardwood.

Will wet wood floor go back to normal?

Usually, this will mean removing the flooring on-top of your subfloor. Sometimes wooden subfloors can be dried out and returned to their previous condition, but in severe floods or cases with extensive water damage they will likely need to be replaced as well.

How long does it take for water to damage wood floors?

As time passes, the moisture trapped within the wood creates an ideal environment for mold and mildew growth. Within 24 to 48 hours, mold spores can begin to colonize, posing health risks to residents and further compromising the structural integrity of the flooring.

Is wood ruined if it gets wet?

Water-damaged wood often needs to be replaced, especially if the damage is extensive or if the wood has weakened structurally. Restoration may be possible for minor damage, but it's critical to assess the extent of the damage and consult a professional for the best course of action.

What happens if you leave water on a wooden floor?

Leaving water standing on hardwood floors for an extended period is never a good idea. Water can penetrate the wood's surface, causing swelling, cupping, or staining. Promptly wipe up any spills or standing water using a dry cloth or mop to prevent damage.

If Your House Floods this is what will Happen to your Floor!

What pulls moisture out of wood floors?

Use a dehumidifier placed at the highest setting possible to dry the floors. Place it in the center of the room and leave it on for at least 24 hours. Next, place fans around the room so the entire surface receives the blowing air. Place the fans at the highest settings possible.

Can water damaged wood floors be saved?

In some instances, a straightforward refinishing of the hardwood floors may suffice. Other scenarios may require patching to replace the damaged hardwood boards before refinishing. In the most severe cases, the removal and replacement of the entire hardwood floor may be necessary.

How long does it take for water to destroy wood?

Water can start damaging wood within days to weeks, depending on the wood type and environmental conditions. Prolonged exposure accelerates the process.

What happens if wood is wet for too long?

Structural Weakness – Damp wood can rot in 7 days to a month. This causes warping, buckling, and splitting, all contributing to the possibility of collapse and other structural-related problems.

Does moisture destroy wood?

Aside from these visible damages, moisture can also cause more subtle but equally damaging effects. Excessive moisture can cause the wood fibers to swell, resulting in gaps and spaces between the planks. This can lead to further moisture penetration, causing the wood to rot, mold, or even develop insect infestations.

What does a water damaged wood floor look like?

Often, water damage manifests in physical changes in the wood floors. This could be anything from subtle discoloration to more noticeable cupping or even warping of the floorboards – a sure sign of excess moisture. Sometimes, the wooden floor may develop a musty smell, especially in cases of water leaks.

Is water damage on wood permanent?

Water stains and discoloration are common after water damage. This occurs when water seeps into the wood, causing it to change color. If left untreated, these stains can become permanent and may require professional refinishing or replacement.

How to tell if a subfloor is water damaged?

Here's what to look for:
  1. Discoloration. One of the earliest signs of water damage is discoloration. ...
  2. Warping or Buckling. Water can cause wood and laminate floors to swell, leading to warping or buckling. ...
  3. Soft Spots or Weak Areas. ...
  4. Musty Odors. ...
  5. Peeling, Cracking, or Lifting.

What to do if water gets under flooring?

If you have water under your floorboards, remove floor coverings and dispose of damaged paper products, dry the area, clean and disinfect the soaked floorboards, ventilate the room, and contact a professional like ServiceMaster of Lake Shore for complete restoration services.

How to pull moisture out of wood?

An easy way to remove moisture from your wood floors is to use a dehumidifier. Set the dehumidifier at the highest setting possible and leave it in the center of the room for at least 24 hours.

How much water will damage hardwood floors?

Did you know that even the smallest amount of water could cause damage to hardwood floors? This includes stains, spillage and swelling from in-between the planks, and even rotting. The tough fact about water damage is that it is not always noticeable right away.

Does wet wood need to be replaced?

Over time, moisture can penetrate wood, causing wood rot. When wood rot occurs, it is important to repair the affected area or replace the feature entirely.

Can wood be recover from water damage?

Wood can recover from water damage to some extent. Immediate action, like drying the wood thoroughly, addressing moisture sources, and applying appropriate treatments, can mitigate damage.

What happens if moisture is trapped in wood?

Trapped moisture in wood refers to the moisture trapped within the wood fibers, leading to potential issues and damage. When wood is not properly dried or sealed, it can absorb moisture from its environment, causing it to swell, warp, or even rot.

How long does it take for water to damage a floor?

Leaky pipes, storm floods, and plumbing problems are just a few of the many ways water can damage your flooring. After the onset of flooding, it only takes 24 to 48 hours to cause significant damage.

How long does it take for wet wood to mold?

mildew and mold will develop within 24-48 hours of water exposure. Even worse, it will continue to grow until steps are taken to eliminate the source of moisture, and effectively deal with the mold problem.

How much water does it take to damage wood?

However, a small, unnoticed leak or standing water can lead to substantial structural issues over time. Minor Damage is labeled as anything less than 1 inch of water. If left untreated, this small amount of water can cause staining on ceilings and walls and warping on wooden floors.

Will insurance pay for water damage to wood floor?

Homeowners insurance generally covers water damage that's sudden and accidental. For example, if a pipe bursts or a washing machine overflows and damages your floor, you may be covered. But if the water comes from flooding, standard homeowners insurance typically won't cover it.

What do water damaged wood floors look like?

Stained or Discolored Floors

If your wood surfaces show water stains or discoloration, you may have water damage. Some signs of damage to look for include: Dark or discolored spots on your floors. Black staining or splotches.

How to dry out wet hardwood floors?

What to Do if Hardwood Floors Get Wet
  1. Quick Response. The first and most critical step is to remove any standing water as quickly as possible. ...
  2. Use of Fans and Dehumidifiers. Once the surface water is mopped up, use fans and dehumidifiers to dry out the area thoroughly. ...
  3. Look for Signs of Warping and Discoloration.

Previous article
What is the most efficient heating system for a house?
Next article
Do you have to wash your clothes after using stain remover?