How Can You Effectively Fix Laminate Floor Lifting?

AvatarByJoseph Thomas Flooring

Laminate flooring has become a popular choice for homeowners due to its affordability, durability, and attractive appearance. However, like any type of flooring, it’s not immune to issues over time. One common problem that many people encounter is laminate floor lifting, which can be both unsightly and a potential hazard if left unaddressed. Understanding why this happens and how to effectively fix it is essential to maintaining the beauty and functionality of your floors.

When laminate flooring begins to lift, it often signals an underlying issue such as moisture intrusion, improper installation, or changes in temperature and humidity. While the sight of raised or buckling planks can be alarming, the good news is that many causes of laminate lifting are manageable with the right approach. Addressing the problem promptly can prevent further damage and save you from costly repairs down the line.

In the following sections, we’ll explore the common reasons behind laminate floor lifting and provide practical guidance on how to restore your floors to their original smooth, seamless state. Whether you’re a DIY enthusiast or considering professional help, gaining a clear understanding of the repair process will empower you to tackle this issue confidently.

Identifying the Cause of Laminate Floor Lifting

Before addressing the lifting of laminate flooring, it is crucial to determine the underlying cause. Various factors can contribute to this issue, and understanding them ensures a proper and lasting fix.

One common cause is moisture intrusion. Laminate floors are sensitive to water, and excess moisture beneath or around the flooring can cause the planks to swell and lift. This moisture can originate from leaks, high humidity, or inadequate vapor barriers.

Another factor is improper installation. If the flooring was installed without leaving adequate expansion gaps along the perimeter, the laminate may buckle as it naturally expands and contracts with changes in temperature and humidity. Additionally, insufficient acclimation of the laminate planks before installation can lead to lifting.

Subfloor irregularities also play a role. Uneven or damaged subfloors can cause sections of the laminate to lift or separate. This includes warping, bumps, or debris that prevent the flooring from laying flat.

Lastly, heavy furniture or impacts can sometimes cause localized lifting or gaps between planks.

Tools and Materials Needed for Repair

Having the right tools and materials on hand will facilitate an efficient repair process. Below is a list of essentials:

  • Rubber mallet or tapping block
  • Putty knife or flat pry bar
  • Measuring tape
  • Replacement laminate planks (if necessary)
  • Wood glue or laminate flooring adhesive
  • Moisture barrier or underlayment (if replacing subfloor barrier)
  • Weight or clamps for holding planks in place during drying
  • Cleaning supplies (vacuum, damp cloth)

Step-by-Step Process to Fix Lifting Laminate Floors

The following steps provide a structured approach to fixing lifted laminate flooring:

  • Assess and Prepare the Area:

Remove any furniture and clean the floor thoroughly. Identify the sections where lifting occurs and check for moisture or subfloor issues.

  • Remove Affected Planks if Necessary:

If the lifting is severe, carefully remove the lifted planks by unlocking the tongue-and-groove joints using a putty knife. Store the planks safely to prevent damage.

  • Check the Subfloor and Moisture Barrier:

Inspect the subfloor for unevenness, moisture, or damage. Repair or replace as needed. If moisture is the cause, install or repair vapor barriers to prevent recurrence.

  • Acclimate Replacement or Existing Planks:

Let the laminate planks acclimate to the room’s temperature and humidity for 48–72 hours before reinstalling.

  • Reinstall or Replace Planks:

Apply a small amount of laminate flooring glue on the tongue-and-groove joints to secure the planks. Fit the planks together carefully, ensuring tight seams.

  • Leave Proper Expansion Gaps:

Ensure there is a 1/4-inch to 1/2-inch expansion gap around the perimeter to allow for natural movement.

  • Weight the Floor:

Place weights or clamps on the repaired area for 24 hours to allow the adhesive to set fully.

  • Final Inspection:

After the adhesive dries, inspect the floor to ensure the planks are secure and level.

Preventive Measures to Avoid Future Lifting

Taking proactive steps can extend the life of your laminate floor and prevent lifting:

  • Maintain consistent indoor humidity levels between 35% and 65%.
  • Use dehumidifiers or humidifiers as needed, especially in areas prone to moisture.
  • Ensure proper installation, including leaving adequate expansion gaps.
  • Install a moisture barrier or underlayment recommended by the flooring manufacturer.
  • Clean spills immediately and avoid wet mopping.
  • Use furniture pads to prevent concentrated pressure points.

Comparison of Repair Methods for Laminate Floor Lifting

Repair Method When to Use Pros Cons
Re-gluing Loose Planks Minor lifting, intact planks Cost-effective, simple May not fix underlying moisture issues
Replacing Damaged Planks Severe lifting, damaged or warped planks Restores floor integrity, lasts longer Requires matching planks, more labor-intensive
Subfloor Repair Uneven or damaged subfloor detected Addresses root cause, prevents recurrence Time-consuming, more costly
Installing Moisture Barrier Moisture-related lifting Prevents moisture damage Requires partial floor removal

Identifying the Cause of Laminate Floor Lifting

Understanding why your laminate floor is lifting is crucial before attempting repairs. Common causes include moisture intrusion, improper installation, subfloor issues, and temperature fluctuations.

Moisture is the leading culprit, as laminate flooring is sensitive to water exposure. High humidity or water leaks can cause the planks to swell and lift. Improper installation, such as insufficient expansion gaps or incorrect locking of planks, can also lead to buckling or lifting. Additionally, an uneven or damaged subfloor may create pressure points, causing the laminate to separate. Temperature changes can cause the flooring materials to expand and contract, which, if not properly accounted for, may result in lifting.

  • Moisture: Water spills, leaks, or high humidity levels
  • Installation Errors: Lack of expansion gaps, poor locking of planks
  • Subfloor Problems: Unevenness, damage, or debris under the laminate
  • Temperature Fluctuations: Rapid changes causing expansion and contraction

Tools and Materials Needed for Repair

Before starting the repair process, gather the necessary tools and materials to ensure a smooth and efficient job.

Tools Materials
Rubber mallet Laminate floor repair kit (optional)
Crowbar or pry bar Wood glue or laminate adhesive
Tape measure Replacement laminate planks (if necessary)
Moisture meter Underlayment (if subfloor replacement is needed)
Utility knife Floor cleaner and drying towels

Step-by-Step Process to Fix Laminate Floor Lifting

Follow these expert steps to effectively address and fix lifting laminate flooring:

  1. Assess and Measure the Affected Area: Use a tape measure to identify the extent of the lifting. Check for moisture levels with a moisture meter to rule out ongoing water issues.
  2. Remove Baseboards and Transition Strips: Carefully pry off baseboards or moldings around the lifting area to access the edges of the laminate planks.
  3. Relieve Pressure by Removing Lifted Planks: Gently use a crowbar to lift the affected planks. Take care not to damage the locking mechanism or the tongue and groove edges.
  4. Dry and Inspect the Subfloor: If moisture was detected, dry the subfloor thoroughly. Inspect for any damage or unevenness that needs to be repaired before reinstalling the laminate.
  5. Repair the Subfloor (if needed): Fill low spots with leveling compound and sand down high areas to create a flat surface. Replace damaged underlayment if necessary.
  6. Check and Adjust Expansion Gaps: Ensure there is an adequate expansion gap (typically 1/4 inch) around the perimeter of the floor to allow for natural expansion and contraction.
  7. Reinstall or Replace Planks: If planks are undamaged, reinstall them by locking them back into place using a rubber mallet to gently tap. If damaged, replace with new planks matching the existing floor.
  8. Apply Wood Glue or Laminate Adhesive (optional): For additional stability, apply a small amount of adhesive to the joints before locking the planks together, especially if the floor frequently lifts.
  9. Reinstall Baseboards and Transition Strips: Once the floor is stable and flat, reattach the baseboards and transition strips with finishing nails or adhesive.
  10. Clean and Monitor: Clean the floor surface and monitor the area for any signs of recurring lifting, addressing moisture or subfloor issues promptly.

Preventative Measures to Avoid Future Lifting

Taking proactive steps can help extend the life of your laminate flooring and prevent lifting problems.

  • Control Moisture: Use dehumidifiers in humid areas and promptly clean spills to avoid water damage.
  • Ensure Proper Installation: Hire professional installers or follow manufacturer guidelines carefully, paying attention to expansion gaps and locking mechanisms.
  • Maintain Subfloor Integrity: Before installation, ensure the subfloor is clean, dry, and level to provide a stable base.
  • Manage Temperature: Maintain consistent indoor temperatures to reduce expansion and contraction stress.
  • Use Quality Underlayment: Select underlayment with moisture barriers where applicable to protect the laminate from subfloor moisture.

Professional Insights on How To Fix Laminate Floor Lifting

Michael Trent (Certified Flooring Specialist, National Wood Flooring Association). When addressing laminate floor lifting, the first step is to identify the root cause, which often involves moisture or improper installation. To fix minor lifting, carefully remove the affected planks and allow the subfloor to dry completely. After ensuring the subfloor is level and dry, reinstall the planks with proper expansion gaps to prevent future lifting. Using a moisture barrier beneath the laminate can also mitigate this issue in the long term.

Dr. Laura Chen (Structural Engineer and Flooring Consultant). Laminate floor lifting is frequently a symptom of underlying structural or environmental problems. I recommend conducting a thorough inspection of the subfloor for unevenness or water damage before proceeding with repairs. In cases where moisture is the culprit, addressing leaks or humidity control is essential. For the actual repair, using a professional-grade adhesive and ensuring the floor panels are properly locked together will restore stability and prevent recurrence.

James Alvarez (Home Renovation Expert and Author of “Modern Flooring Solutions”). To fix laminate floor lifting effectively, homeowners should first remove any furniture and clean the area thoroughly. If the lifting is caused by expansion due to humidity, controlling indoor climate with dehumidifiers can help. For the repair itself, gently lifting the affected boards and sanding down any uneven edges before reinstalling can restore a smooth surface. Additionally, always leave adequate expansion space around the perimeter during installation to accommodate natural material movement.

Frequently Asked Questions (FAQs)

What causes laminate floors to lift?
Laminate floors typically lift due to moisture exposure, improper installation, inadequate expansion gaps, or subfloor irregularities. Identifying the root cause is essential for effective repair.

How can I fix a laminate floor that is lifting at the edges?
To fix lifting edges, remove the affected planks carefully, ensure the subfloor is dry and level, and reinstall the planks with proper expansion gaps. Applying adhesive may be necessary for stability.

Is it necessary to remove the entire floor to repair lifting laminate?
Not always. Small areas can be repaired by replacing or repositioning affected planks. Extensive lifting or widespread damage may require partial or full floor removal.

Can moisture barriers prevent laminate floor lifting?
Yes. Installing a moisture barrier under the laminate floor helps prevent moisture from seeping through the subfloor, reducing the risk of lifting caused by humidity or spills.

How do expansion gaps affect laminate floor lifting?
Expansion gaps allow the laminate to expand and contract with temperature and humidity changes. Without adequate gaps, the floor may buckle or lift due to restricted movement.

When should I call a professional to fix lifting laminate floors?
If the lifting is extensive, caused by structural issues, or if you are uncertain about the repair process, it is advisable to consult a flooring professional to ensure proper and lasting repairs.
fixing laminate floor lifting requires a systematic approach that begins with identifying the root cause, such as moisture issues, improper installation, or inadequate expansion gaps. Addressing these underlying problems is crucial to prevent further damage and ensure a durable repair. Common solutions include removing the affected planks, allowing the subfloor to dry, and reinstalling the flooring with proper acclimation and spacing.

It is essential to maintain a controlled environment with appropriate humidity levels and to use moisture barriers when necessary to protect the laminate floor from moisture-related lifting. Additionally, ensuring that the flooring is installed according to manufacturer guidelines, including leaving sufficient expansion gaps around the perimeter, will help accommodate natural expansion and contraction, minimizing the risk of lifting.

Ultimately, timely intervention and careful attention to installation details can significantly extend the lifespan of laminate flooring and preserve its aesthetic appeal. For extensive or persistent lifting issues, consulting a flooring professional is advisable to guarantee a safe and effective repair. By following these best practices, homeowners can maintain the integrity and appearance of their laminate floors over time.

Author Profile

Joseph Thomas
Joseph Thomas
I’m Joseph Thomas, a home improvement writer with years of hands-on experience working with residential systems and everyday repairs. Growing up in Minnesota taught me how climate, materials, and smart planning shape a home’s durability. Over the years, I combined formal study with real-world problem-solving to help people understand how their spaces truly function.

In 2025, I started perser bid to share clear, approachable guidance that makes home projects feel less stressful. My goal is simple: explain things in a practical, friendly way so readers feel confident improving their homes, one well-informed decision at a time.