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How do you fix a swollen laminate floor without replacing it?

Author

Daniel Moore

Published Jan 12, 2026

How to repair swollen laminate flooring without replacing it?

  1. Firstly, you may try the X-acto knife on the bubbling spot to fix the issue. ...
  2. Secondly, rolling up the floor is another way to smooth the laminate surface. ...
  3. Drying the damaged area with a hairdryer or heater may resolve your bubbling up to the surface.

Can you flatten swollen laminate flooring?

To dry a piece of laminate that has swollen from moisture, you can usually use a hair dryer. Run the hair dryer along the swollen flooring until you start to see it contract. Then, use a roller or straight edge to flatten it out.

Can water damaged laminate flooring be repaired?

Water damaged boards can't be fixed, but they can be replaced. If you have leftover laminate flooring boards from your original installation, use those. If not, match the damaged boards with new ones. Make sure the floor is completely dry before you begin the repairs.

How do you fix water under laminate flooring?

How to Dry Laminate Flooring with Water Under It

  1. Bring in Dehumidifiers or Large Fans. Dehumidifiers and fans can help dry out the space. ...
  2. Remove the Floorboards. ...
  3. Clean Up the Underlayment. ...
  4. Dry and Disinfect the Subfloor. ...
  5. Disinfect the Floorboards. ...
  6. Put Down the Underlayment. ...
  7. Reinstall Your Laminate Flooring. ...
  8. Put Your Trim Back.

How do you fix a bulge in laminate flooring?

The best way to fix constant bubbling on laminate flooring is to get rid of excess moisture under the planks. Create expansion joints and use a dehumidifier in the room to reduce moisture content causing the bubbles and swelling.

25 related questions found

How do you fix a swollen wood floor?

If the floor is swollen from humidity, then you must set up ventilation fans to dry out the room. To speed up the process, a dehumidifier may also be set up in the room to help dry out the flooring and capture the moisture.

Why is my floor bulging?

When a floor board starts to bulge, it's usually because it is warped. Hardwood floors usually warp because they have been exposed to water, or excessive humidity. The water causes the fibers in the wood to swell and shrink. A board that is severely bulged will most likely need to be replaced.

Can you dry out laminate flooring?

You can use a hair dryer or heater to dry the floors and subfloors. Keep one thing in mind; you can't dry the laminate floor until you remove it from the wet surface. If you continue to reinstall the laminate floors on the damp surface, there will be structural damage.

How do I get water out from under my floor?

Soak Up as Much of the Water as Possible

Towels, mops and clean rags can immediately soak up small puddles and spills. Use a wet vacuum to pull up larger water sources from out the flooring. Don't stop using the wet vacuum even when you can no longer see the water on the surface of the wood.

What happens if water gets under vinyl flooring?

Vinyl flooring can either be glued to the subfloor or it can float on top of it, and either way, moisture underneath it causes problems. Moisture weakens glue bonds and causes the edges to lift and bubbles to form in the middle. It also deteriorates and softens the vinyl and promotes the growth of mold.

How do you fix snaps on the floor?

Use a laminate or wood glue to fix them, depending on the flooring material. Apply a thin line of glue on any broken areas and press them together until it sets. Wipe up any excess glue from the edges. Replace any flooring pieces that can't be fixed.

Can you use Murphy's Oil Soap on laminate?

CLEANING CAN BE NATURALLY SAFE

Another great response for how to clean laminate wood floors involves a bucket, hot water, a mop, Murphy® Oil Soap or a similar natural cleaner that's safe to use on laminate.

Can water seeping through laminate floor?

Water on Top of Laminate Flooring

Laminate flooring can get wet, but only the top. Laminate flooring's sides, open seams, damaged areas, and bottoms can never get wet. If you install the laminate flooring in a full bathroom, you must take extreme precautions given by laminate manufacturers.

Can you mop laminate flooring?

To keep your laminate floors fresh, mop them every two months. Damp mops (a.k.a. microfiber mops) are gentle enough to use on laminate floors. If you're going to use a regular mop, just wring it out until it's almost completely dry.

How do I know if my laminate floor is moldy?

Look around the room and see if you can find any signs of mold growth, including a musky odor, as well as black or dark green streaks in-between the planks. If it ever gets to this point, you'll need a full replacement, as the mold can infiltrate your home and wreak havoc on your health.

How long does it take for water to damage laminate flooring?

Laminate flooring can take small, everyday spills on top of the flooring without seeing any water damage. However, if laminate takes on as much water as a major leak or flood, the flooring will resist water damage for only 2-4 hours. By the 5th hour submerged, laminate will start to swell and be irreparable.

How do I know if my subfloor is water damaged?

A water-damaged subfloor feels spongy underfoot. It might bounce or squeak when you walk across the room. Sagging boards, damp spots and unpleasant musty smells are also signs of a rotting subfloor.

How long does laminate flooring take to dry?

If you are using dehumidifiers and high-volume fans, it will typically take anywhere from 12 to 36 hours to dry laminate flooring. This depends on the extent of water spilled, the number of floorboards affected, and the equipment you use. If you use regular house fans, it could take several days to even a week to dry.

Why is my laminate floor peaking?

The most common cause of peaking is a lack of expansion space between the laminate floor and the walls around the perimeter of the installation, or a lack of expansion space between the laminate floor and laminate moldings.

Will warped floors go back to normal?

Cupped flooring looks bad but it's almost always reversible. It can usually be corrected by simply restoring proper humidity inside the room, which will help balance out the moisture above and below the flooring.

What makes laminate floors buckle?

Buckling or Warping

Buckled wood floors are almost always a result of moisture damage. Laminate flooring is stirred by water in various ways. High moisture content in the air triggers buckling or warping. Unnecessary water on the floor surface can also cause warping or buckling.

How do you fix a buckling floating wood floor?

To fix warping or buckling laminate floor, remove the mold or baseboard near the buckled plank, remove the spacers and fit with smaller ones, trim to give expansion space, nail the baseboards and put some weight on the repaired plank to weigh it down for at least a day.

Will cupped floors flatten out?

For a solid floor as flooring acclimates to the space the initial cupping will subside and gapping will be the issue of the finished floor. In this case allowing the flooring to complete a heating season will likely fix the cupping as the elevated moisture will be removed by the heating and the flooring will flatten.

Will buckled floors go back down?

If the buckling is only minor, in many cases the boards might return back to normal. If the boards are still showing areas of damage and buckling, you'll need to replace them.

Will mold grow under laminate flooring?

Discoloration – If your laminate flooring suddenly has patches of discoloration all over it, you may have mold growing underneath. This does depend on the severity of the infestation though, so it's not a failproof method of detection.