The short answer
What Causes a Floor to Lift
A lifting floor is almost always a moisture problem. Water seeps into wood, laminate, or tile, causing the material to swell and buckle. Leaks from pipes, appliances, or the roof are frequent culprits. Even a slow drip behind a wall can build up over time and push the floor upward.
High humidity in the air can also make wood flooring absorb moisture and expand. If the floor was installed without enough gap around the edges, it has nowhere to go, so it lifts. Sometimes the issue is not water but foundation settling or shifting, which can raise a section of the subfloor.
Signs That Water Is the Problem
Look for other clues that point to water. Dark spots, a musty smell, or a soft feeling underfoot often indicate moisture. You might also notice the floor is cooler in that area or see small cracks in the grout or seams.
- Buckling or warping planks
- Musty odor near the floor
- Dark stains or discoloration
- Soft or spongy spots when you walk
- Cracks in tile or grout
- Visible gaps between boards or seams
What to Do Right Away
Your first step is to stop the water source if you can find it. Turn off the shutoff valve for the affected area if a pipe is leaking. Move furniture off the wet floor to prevent stains and allow air to reach the surface.
Dry the area as much as possible using towels and a fan or dehumidifier. Do not wait to see if it gets worse. The longer moisture sits, the more likely the floor will need replacement. A water damage inspection can help determine the extent of the problem.
When to Call the Pros
If the floor is lifting and you cannot find the cause, or if the water damage covers a large area, it's time to call local water damage pros. They have tools to detect hidden moisture and map out the affected zone. They can also extract standing water and set up structural drying to prevent further damage.
The pros will assess whether the flooring can be saved or must be removed. Hardwood might be restorable, but laminate or particle board often cannot be dried back to shape. Their work usually involves removing damaged sections, drying the subfloor, and preparing for replacement if needed.
Preventing Future Lifting
After the repair, take steps to avoid a repeat. Fix any leaks promptly and keep an eye on appliance connections. Use a dehumidifier in humid months to keep indoor moisture levels stable. Make sure any new flooring is installed with proper expansion gaps around the edges.
Regularly check under sinks and around toilets for early signs of drips. If you have a crawl space, inspect for standing water after heavy rain. Catching a problem early is much easier than dealing with a lifted floor later.
Water damage does not wait
Every hour counts once water gets into floors and walls. One call starts the response.
Call Now (214) 730-5993Frequently asked questions
Can I fix a lifted floor myself?
Small areas with mild buckling might settle after drying, but most lifting needs professional help. If water has soaked into the subfloor, you may need to remove and replace the flooring. Attempting a DIY fix could hide ongoing moisture and worsen the damage.
How long does it take for a floor to dry out?
Drying time depends on the material and how much water was absorbed. Wood can take days or weeks to dry fully, especially in humid conditions. The pros use dehumidifiers and air movers to speed the process, but there is no set timeline. Patience is key.
Will my insurance cover the repair?
Coverage depends on your policy and the cause of the damage. Sudden leaks are often covered, while gradual wear or flooding may not be. Check your policy documents and talk to your insurance company to understand what is included. Policies vary, and your insurer decides what is covered.