How to Repair Laminate Flooring: Chips to Full Plank Swap

A chipped or gouged laminate floor looks worse than it is—most surface damage takes 30 minutes and $12 to fix with a color-matched repair kit. But if the plank is swollen, split, or delaminating, you’re looking at a full replacement, which is still a weekend-level DIY job if you know how the floor was installed.

The real question isn’t whether you can repair laminate—it’s whether you should. Surface chips are cosmetic and sealable. Structural damage means pulling the plank and addressing what caused it. This guide walks through both, with honest trade-offs on when a repair kit works and when you need to swap the whole plank.

What you’ll need

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For chip and scratch repair:

Laminate repair kit (Pergo, Tarkett, or generic hardware-store option, $8–$15)
150-grit and 220-grit sandpaper
Putty knife (1–2 inch)
Tack cloth or lint-free rag
Optional: clear polyurethane or UV-cured resin pen

For plank replacement:

Replacement plank matching your original flooring
Circular saw or miter saw (or rent from hardware store, ~$15/day)
Pry bar or tapping block and hammer
Laminate adhesive (Gorilla Glue or Titebond polyurethane, ~$10) or floating-floor clips if original was glued
Spacers (1/4 inch or shims)
Dust mask (N95) and eye protection

Prerequisites:

Know whether your floor is glued or floating (click-lock). If you’re not sure, try gently lifting a plank at a threshold or closet edge—floating floors unlock; glued floors resist.
Match the replacement plank to your original product line (model number, color, finish). Don’t remove the damaged plank until the replacement arrives.

Before you start

Dust and saw safety: Cutting laminate produces fine particulates. Wear a dust mask (N95 or P100) and eye protection. If renting a circular saw for the first time, ask the rental staff for a quick safety walkthrough—keep fingers clear of the blade and never reach under it while running.

Adhesive fumes: Polyurethane adhesives off-gas. Open windows if working indoors and let glue cure per manufacturer instructions (typically 12–24 hours) before walking on the floor.

Old flooring note: Laminate itself doesn’t contain asbestos, but if your original flooring dates to before 2000 and you suspect asbestos underlayment, don’t disturb it. Consult a certified abatement contractor before proceeding; the EPA has guidance on asbestos identification at epa.gov/asbestos.

How to fix chipped laminate flooring

Applying color-matched repair filler to laminate floor chips with putty knife — Photo by Erik Mclean on Pexels

Use this method for surface-level chips, shallow scratches, or small gouges where the laminate wear layer is damaged but the core underneath is still solid.

Step 1: Clean and prep the damaged area

Vacuum out any dirt or debris from the chip. Use 150-grit sandpaper to lightly roughen the edges of the chip and the surrounding finish—3 to 4 gentle passes. You’re not sanding into the core; you just want to scuff the glossy surface so the filler has something to grip. Wipe the area with a tack cloth to remove all dust.

Step 2: Apply repair compound

Match the repair kit color to your flooring. Most kits come with 2–3 color options (light oak, cherry, ash). If you’re unsure, test the filler on a plank in a closet or under furniture first—a repair that’s slightly off-color is noticeable every time you walk by.

Using the putty knife, press the filler compound into the chip, overfilling it slightly. Smooth it level with the surrounding surface, wiping excess with a damp cloth before it hardens. Let it cure per the kit instructions—usually 2 to 4 hours.

Step 3: Sand and finish

Once fully cured, sand the repair area gently with 220-grit sandpaper until it’s flush with the surrounding laminate. For surface-level chips, you’re done. For deeper scratches that expose the core, apply a thin coat of clear polyurethane or a UV-cured resin pen over the repair for added protection—it’s optional, but it extends the life of the fix.

I’ve done this repair on rental-property floors half a dozen times. The ones that held up were the ones I sanded properly before filling. Skip that step and the filler flakes out in a few weeks.

How to replace a damaged laminate plank

Circular saw cutting laminate plank for full board replacement repair — Photo by Ron Lach on Pexels

If the plank is cupping, swollen from water exposure, deeply split, or delaminating (top layer separating from the core), a repair kit won’t help. You need to replace the whole plank.

Step 1: Determine the plank layout and removal strategy

Figure out how your flooring is installed: glued (adhesive bonds the plank to the subfloor) or floating (click-lock planks sit on an underlayment, not fastened down).

Floating floors are easier—unlock the damaged plank from its neighbors and lift it out.
Glued floors require prying up the damaged plank, scraping off old adhesive, and prepping the subfloor for the new plank.

If you’re not sure which you have, try gently lifting a plank at a closet threshold or under a door jamb. Floating floors release with a little backward pressure; glued floors resist.

Step 2: Remove the damaged plank

For floating floors: Unlock the damaged plank by gently tapping it backward out of the lock joint using a tapping block (a scrap piece of wood works) and a hammer. Work slowly to avoid damaging the tongue-and-groove on the surrounding planks. Once unlocked, lift the plank out.

For glued floors: Carefully pry up one end of the damaged plank using a pry bar. Work slowly to avoid splintering. If the plank won’t budge, cut it in half lengthwise with a circular saw (set the blade depth to match plank thickness—usually 7–8mm) and remove it in smaller pieces. Once the plank is out, scrape off all old adhesive from the subfloor using a putty knife or scraper.

Step 3: Prepare the subfloor

Vacuum away all debris and dust. Inspect for moisture—damp spots, mold, or a musty smell. If you see any of these, stop. You need to address the source of the moisture before installing a new plank, or the replacement will fail the same way.

Check that the subfloor is flat and level. Any high spots or gaps larger than 1/8 inch should be shimmed or sanded down.

Step 4: Install the replacement plank

For floating floors: Lay the new plank into the empty space, angling its top edge upward, then press down to lock it into place. Tap gently with a mallet and tapping block to ensure a tight fit. If surrounding planks are held away by spacers, remove one spacer at a time and seat the plank fully before pulling all spacers.

For glued floors: Apply polyurethane adhesive (Gorilla Glue or Titebond) in a thin bead along the back and edges of the new plank. Press it firmly into place. Place heavy weight on it—sandbags, concrete blocks, or a stack of books—and let the adhesive cure per the product instructions (12–24 hours) before walking on it.

The first time I did this on a glued floor, I walked on it after 6 hours because I figured “close enough.” The plank shifted, left a gap, and I had to pull it up and start over. Learn from my mistake: let it cure the full 24 hours.

Step 5: Verify the repair

Once the adhesive has cured or the plank is locked in, walk on it. It should feel solid and flush with the surrounding floor. If there’s any give or unevenness, you may need to re-seat the plank or check for subfloor issues.

Troubleshooting

Problem: Filler color doesn’t match the floor

The repair kit’s color is close but not exact. This is common—laminate comes in dozens of tones. If the color is only slightly off, try blending two kit colors or adding a tiny bit of the darker shade to the lighter one. Test on a hidden plank first.

Problem: Replacement plank won’t lock into place

The tongue-and-groove is damaged or debris is blocking the lock. Inspect the edges of the surrounding planks for splinters or broken tongues. If debris is the issue, vacuum thoroughly. If the tongue is damaged, you may need to replace the adjacent plank too.

Problem: New plank sits higher or lower than surrounding floor

The subfloor isn’t level or old adhesive residue is creating a bump. Remove the plank, check the subfloor for high spots (sand them down) or low spots (shim with thin plywood), then reinstall.

Problem: Plank edges are chipping during removal

You’re prying too aggressively or the adhesive is stubborn. Work slower, applying heat with a hair dryer to soften glued planks before prying. For floating floors, make sure you’re unlocking the plank fully before lifting.

When to call a professional

DIY works well for:

Surface chips and scratches where the core is still solid
Single-plank replacement with no subfloor issues
Floating-floor systems (easier to unlock and replace)

Call a flooring professional if:

Water damage or moisture: Swelling, cupping, or discoloration suggests water damage. A flooring pro can assess whether the subfloor is compromised and whether the entire floor needs replacement.
Widespread damage (5+ planks or more than 30 square feet): At this point, localized replacement becomes inefficient. Professional installation with proper acclimation and finishing is worth the cost.
Subfloor concerns: Soft spots, visible rot, mold, or musty smells. Subfloor repair requires carpentry skills and possibly code inspection.
Difficulty matching planks: Some discontinued product lines are hard to source. A flooring installer may have supplier connections or can advise on replacement alternatives.
Old flooring with unknown installation method: If you’re not sure whether the floor is glued, nailed, or floating, a pro can assess the removal strategy without risking structural damage.

FAQ

Can you repair laminate flooring without replacing it?

Yes, for surface-level chips and scratches. A color-matched repair kit ($10–$15) fills cosmetic damage and restores the finish. But if the plank is swollen, split, or delaminating, you’ll need to replace the entire plank—repair kits won’t fix structural damage.

How do you fix a chipped laminate floor?

Sand the chip lightly with 150-grit sandpaper, apply color-matched filler from a repair kit, smooth it flush, and let it cure. Once dry, sand the repair with 220-grit sandpaper until it’s level with the surrounding floor. The repair takes about 30 minutes.

Can you replace just one plank of laminate flooring?

Yes. For floating floors, unlock the damaged plank from its neighbors and swap in a replacement. For glued floors, pry up the damaged plank, scrape off old adhesive, and glue down the new plank. Make sure the replacement matches your original product line.

What causes laminate flooring to chip?

Dropped objects (especially metal or ceramic), dragging furniture, or impacts from pet claws are the most common causes. Laminate’s wear layer is durable but not indestructible—high-traffic areas or low AC-rated laminate (AC1–AC2) chip more easily than commercial-grade products (AC3–AC4).

How long does a laminate floor repair last?

A well-done chip repair lasts 3–5 years or longer if the area isn’t subjected to repeat impacts. Plank replacements last as long as the original floor, assuming the subfloor is sound and moisture issues are addressed.

Laminate repair is one of those jobs where the decision-making matters more than the actual work. Surface chips are a 30-minute fix; structural damage means addressing what caused it in the first place. If you’re not sure which you’re dealing with, poke around the edges of the damaged area with a putty knife—if the core feels soft or spongy, you’re replacing the plank. If it’s solid, fill it and move on.

For more flooring fixes, check out how-to-fix-squeaky-floors if settling develops after plank replacement. And if you’re weighing whether to repair your current laminate or upgrade entirely, see Comparisony’s breakdown of laminate flooring brands by durability and repairability.