What Causes Bubbles in Laminate Flooring?
Bubbles in laminate flooring can result from several factors, most of which stem from moisture or improper laminate flooring installation. Here are the most common culprits:
- Trapped Moisture: Water spills, humidity, or wet mopping can seep into seams, causing the inner core of laminate boards to swell.
- Improper Installation: Skipping underlayment or failing to leave an expansion gap around the room’s perimeter can lead to pressure build-up and bubbling.
- Low-Quality Adhesive: For laminate flooring types that use glue-down installation, poor-quality adhesive or not letting it cure properly can cause separation and bubbles.
- Subfloor Problems: A subfloor that’s uneven or not moisture-sealed can transfer issues up to the surface.
How to Fix Bubbles in Laminate Flooring
If your floor already has bubbles, here are the best solutions depending on the severity of the issue:
- Minor Bubbles: In some cases, using a needle to puncture the bubble and pressing it flat may temporarily reduce its appearance. Heat from a hairdryer followed by pressure can sometimes help reset the surface.
- Replace the Affected Boards: This is often the most effective fix. Carefully remove the damaged board and replace it with a new one, ensuring you follow proper laminate floor installation procedures.
- Address Moisture Issues: Fix any leaks or humidity problems before replacing boards to prevent recurrence.
Tips for Preventing Future Bubbles
Learn how to install laminate flooring correctly or work with professional installers who understand subfloor preparation, expansion gaps, and sealing.
- Always clean spills promptly and avoid using a soaking wet mop.
- Choose laminate flooring that includes a quality moisture barrier layer.
Trust the Experts in Laminate Flooring
At Floor Coverings International Middletown, we specialize in installing laminate flooring for homes in Warwick, Goshen, Pine Bush, and Highland Mills, NY. Whether you need help with laminate floor installation or expert advice on how to install laminate flooring properly, our team is here to help. Visit our showroom in Middletown, NY or contact us to schedule your free consultation today.

