Laminate floor bubbles got you down? You don’t always need to replace the entire floor! For minor, recent bubbles, try a heavy, flat object. For more persistent issues, this guide helps diagnose the cause and provides practical, DIY solutions.

Safety First: Always wear appropriate safety gear (eye protection, gloves) when using tools or chemicals.

Understanding the Cause of Laminate Flooring Bubbles

Before fixing, understand why the bubbles appeared. Common causes:

  • Moisture: Spills, leaks, or humidity seep into seams, causing swelling.
  • Improper Installation: Inadequate expansion gaps prevent natural expansion/contraction.
  • Subfloor Issues: Damp or poorly prepared subfloors transmit moisture.
  • Low-Quality Laminate: Thinner laminate is more susceptible to moisture.

Act fast if moisture is the culprit!

1. Identify and Eliminate the Moisture Source

  • Check for leaks: Inspect plumbing, appliances, and windows.
  • Address spills immediately: Wipe up spills, especially near seams.
  • Improve ventilation: Use exhaust fans in bathrooms/kitchens.
  • Check humidity levels: Use a dehumidifier in humid climates.

2. Drying the Affected Area

  • Remove baseboards (carefully): Expose laminate edges for better airflow. Use a pry bar gently.
  • Use fans and dehumidifiers: Position fans and use a dehumidifier.
  • Monitor progress: Check bubbles periodically. This can take days/weeks.

3. Reinforcing Weakened Laminate

  • Drill a small hole: Use a small drill bit (<1/8 inch) in the bubble’s center to release trapped air.
  • Inject wood glue (optional): Use a syringe to inject a small amount of wood glue under the lifted area. Don’t use too much!
  • Apply weight: Place a flat, cloth-covered object on the area and add weight (books). Leave for 24-48 hours.
  • Fill the hole: Once dry, fill the hole with color-matched wood filler. Sand lightly and wipe clean.

Addressing Bubbles Caused by Installation Issues

If not moisture, incorrect installation might be the cause.

1. Check Expansion Gaps

  • Inspect the perimeter: Ensure a gap (about 1/4 inch) between the laminate and walls.
  • Clear obstructions: Remove debris preventing expansion.
  • Recut planks if necessary: Trim laminate edges with a multi-tool or saw to create space.

2. Evaluate the Subfloor

  • Check for unevenness: Use a long level to find dips/bumps.
  • Address imperfections: Use self-leveling compound for small issues. Larger issues may need professional help.

Preventing Future Bubbles

  • Install laminate flooring correctly: Follow instructions for expansion gaps and subfloor preparation.
  • Protect your floors: Use mats at entrances and clean up spills immediately.
  • Maintain proper humidity levels: Use a dehumidifier to control humidity.
  • Choose quality laminate: Invest in thicker, durable laminate.

Important Note: Extensive damage might require replacement. Consult a flooring professional.