Common Laminate Flooring Problems and Solutions

Laminate flooring is durable and easy to live with, but it is not immune to problems. Gaps appear between planks, boards buckle in humid rooms, scratches show up after a few years of use, and certain spots start creaking underfoot. Most of these issues are fixable without replacing the entire floor. Whether the problem just appeared or has been building for a while, the right fix depends on identifying what caused it in the first place.

1. Gaps Between Planks

Gaps between laminate planks are usually caused by seasonal movement, poor installation, or a missing or compressed expansion gap at the edges of the room. Laminate expands and contracts with changes in temperature and humidity. Without sufficient expansion space at all walls, the floor has nowhere to move, and the planks eventually pull apart.

Common signs include:

• Visible separation between planks, particularly along the long edges
• Gaps that appear in winter and partially close in summer, indicating seasonal movement
• Multiple rows separating rather than one isolated area, pointing to an installation issue

How to Fix Gaps Between Laminate Planks

For small gaps where planks have drifted, push adjacent planks back together along the row. Use a tapping block and rubber mallet for stubborn gaps, applying even pressure along the plank edge. Near walls, a pull bar allows you to reposition planks where a mallet cannot reach.

If the gap extends across multiple rows, lift the affected section and relay it while maintaining the correct expansion gap around the room. For very small gaps that cannot be fully closed, a flexible color-matched filler can improve the appearance by sealing the joint.

2. Buckling and Warping

Buckling, where planks lift or bow upward, almost always comes from moisture, heat, or insufficient expansion space. Moisture is the most common cause. Water that seeps into the joints causes the core to swell, pushing planks upward.

This can come from surface spills, high ambient humidity, or moisture rising through a concrete subfloor. Buckling from heat typically happens near south-facing windows or heating vents where the surface temperature rises significantly.

How to Fix Buckled or Warped Laminate Flooring

Always resolve the source of moisture or heat before repairing the floor. Common causes to check include:

• Surface spills that have seeped into the joints
• High indoor humidity causing the planks to expand
• Moisture rising through a concrete subfloor

Once the source has been addressed, confirm that the expansion gap around the perimeter is between 8 and 12 mm. Remove the skirting boards if necessary and trim the gap where it is too tight. Lifted planks that have dried without cracking or delaminating can often be relaid. Planks that remain swollen after drying should be replaced.

3. Scratches and Dents

The wear layer on laminate resists everyday scuffing but is not impervious to sharp objects, dragged furniture, or heavy impacts. Light scratches affect only the surface layer and are largely cosmetic. Deep gouges that penetrate through the wear layer are more noticeable and harder to disguise. The most frequent causes are pet nails, furniture legs without felt pads, and grit tracked in on shoes.

How to Repair Scratches and Dents

Light surface scratches can usually be concealed with a wax pencil or laminate repair kit matched to the floor colour. Most repair kits contain coloured wax sticks, a mixing palette, a spatula, and a buffing cloth.

If the damage extends through the wear layer and cannot be repaired neatly, replace the affected plank instead:

• Work back from the nearest free edge and unclick rows until you reach the damaged board
• Remove the damaged plank and install the replacement in the same position
• Relock each row back toward the wall
• Check that the replacement sits flush with the surrounding planks before finishing

If you no longer have spare boards from the original installation, Rustic Wood Floor Supply can help match a replacement. Bringing a spare plank or clear photo makes it easier to find the closest match.

4. Creaking and Noise

Creaking underfoot points to movement between the planks, an uneven subfloor, or underlay that has compressed over time. Underlay worn thin in heavily used areas loses its cushioning and allows boards to flex and rub with each step.

Subfloor irregularities such as dips, humps, or soft spots create the same effect. In some cases, the noise comes specifically from friction between planks at their joints rather than from flexing over a void.

How to Fix Creaking Laminate Flooring

Start by identifying where the sound is coming from. If the floor feels harder in the noisy area and the creak occurs in the same spot every time, the underlay may have compressed and should be replaced in that section. If the subfloor has a dip or high spot beneath the affected area, level it before relaying the laminate.

When the noise comes from friction at the locking joints, lift the affected row and apply a small amount of dry lubricant or talcum powder to the locking edges before relaying. This approach is most effective when the creaking is limited to one area rather than spread across the room.

5. Loose or Uneven Planks

Planks that rock, shift, or sit higher than their neighbours are usually the result of locking edge damage or subfloor unevenness. When locking edges are crushed or snapped, the plank cannot engage properly. Subfloor variation beyond about 3 mm over a 1.8 metre span also causes rocking even when the locking edges are intact.

How to Reseat Loose or Uneven Planks

Click the loose plank back into position and confirm that every joint is fully engaged:

• The long edge is locked along the full length of the board
• The short end sits tightly with no visible gap
• The surface is flush with the surrounding planks on every side

If subfloor unevenness is causing the movement, sand down high spots and fill low areas before relaying the flooring. Planks with crushed or broken locking edges cannot be secured properly and should be replaced rather than forced back into position.

6. Water Damage

Water damage is the most serious laminate flooring problem because it affects both the plank and the subfloor beneath it. The core material swells rapidly when wet and rarely returns to its original dimensions.

Signs include:

• Planks that have visibly swollen or lifted
• Soft or spongy feeling underfoot
• Discolouration or a white haze on the surface
• Musty smells from moisture trapped beneath the floor

How to Respond to Water Damage

Act as quickly as possible to limit further damage.

1. Blot standing water with towels rather than rubbing it across the surface.
2. Use fans and a dehumidifier to remove moisture from the room.
3. Lift rugs or mats that are trapping moisture against the floor.
4. Remove swollen or buckled planks from the nearest free edge if they cannot be salvaged.

Only install replacement planks once the subfloor is completely dry. Just as importantly, fix the source of the water first, whether it is a plumbing leak, appliance fault, or water entering from outside. Replacing laminate before the underlying problem is resolved will likely lead to the same damage happening again.

Can buckled laminate flooring be repaired?

Yes, if the cause of moisture or heat is resolved first and the planks have not delaminated. Remove the moisture source, allow the floor to dry, restore the expansion gap, and relay lifted sections. Cracked or swollen planks need replacing.

How do you fix scratched laminate floors?

Use a laminate repair kit or a wax pencil matched to the floor colour for light scratches. For deep gouges, replace the damaged plank by working back from the nearest free edge and relocking with a matching board.

When should laminate flooring be replaced?

Replace laminate when the locking edges are damaged beyond reuse, when water damage has affected the subfloor, or when the same areas keep failing despite repair.

Takeaway

Most hardwood flooring problems can be repaired successfully when the underlying cause is addressed early. Gaps often close once planks are repositioned correctly. Buckling improves after moisture issues and expansion space are corrected. Scratches can usually be disguised or repaired, while creaking often disappears once the underlay, joints, or subfloor are fixed. Water damage requires the quickest response because delaying repairs increases the likelihood of permanent plank and subfloor damage.

Rustic Wood Floor Supply stocks replacement laminate planks, underlays, repair kits, and installation tools across Atlanta, Boise, and Spokane. Whether you need a single replacement board or supplies for a full section repair, the team can help match your existing floor and get you what you need.