Complete Guide to Handling Water Damaged Laminate Flooring
Laminate flooring is affordable, stylish, and easy to install — but one weakness is its vulnerability to water. When spills, leaks, or flooding occur, water can seep into seams and layers, causing swelling, warping, or even mold growth underneath.
This comprehensive guide explains how to identify, fix, and prevent water damage to laminate flooring. Whether you’re a homeowner, renter, or DIY enthusiast, these strategies will save you time, money, and frustration.
Why Laminate Flooring Struggles with Water
Unlike solid hardwood, laminate flooring is made of composite wood fibers and resins, topped with a decorative layer. While this makes it durable for foot traffic, it also makes it absorbent.
Laminate core swells when wet.
Seams and joints allow water intrusion.
Non-waterproof backing cannot block moisture.
In short: water is laminate’s #1 enemy.
1. Immediate Actions After Water Exposure
When water hits laminate flooring, every second counts. Here’s what to do:
✅ Stop the source – Turn off leaking appliances, pipes, or plumbing.
✅ Remove surface water – Use a wet-dry vacuum or towels to soak up water.
✅ Increase airflow – Open windows, use fans, and run a dehumidifier.
✅ Lift furniture & rugs – Prevent moisture from trapping underneath.
✅ Inspect seams – Look for swelling, bubbling, or lifted edges.
Pro Tip: If water sat longer than 24 hours, assume damage is severe.
2. Signs of Water Damaged Laminate Flooring
Common symptoms include:
Warping or cupping – planks curl upward or downward.
Bubbling – surface laminate lifts away from core.
Discoloration – dark spots or stains indicate moisture seepage.
Soft or spongy feel – core materials have weakened.
Musty odor – potential mold under the planks.
If 2–3 boards are affected, you may salvage it. If an entire room is swollen, replacement is unavoidable.
3. Repair Options
Minor Damage Fixes
Dry thoroughly (48–72 hrs with fans and dehumidifiers).
Glue lifted edges with wood glue.
Fill gaps using laminate repair kits or putty.
Sand lightly to smooth uneven areas.
Major Damage (Replacement Required)
Remove baseboards & molding.
Cut and pull out damaged planks.
Clean & dry subfloor completely.
Install new planks (use spares or buy matching).
Seal joints with waterproof sealant.
5. Costs of Repairing Water Damaged Laminate Flooring
Small DIY repair: $30–$100 (glue, filler, replacement planks).
Partial professional repair: $300–$800.
Full room replacement: $1,500–$4,500 depending on size and flooring grade.
6. Insurance & Warranty Considerations
Home insurance may cover water damage if caused by sudden events (pipe burst, appliance leak).
Warranty: Most laminate warranties exclude water damage unless it’s specifically “waterproof laminate.”
Claim Tip: Document everything with photos before repairing.
7. Prevention Tips
Clean spills immediately.
Avoid wet mopping. Use a damp microfiber mop.
Place mats near sinks, entryways, and bathrooms.
Maintain indoor humidity (30–50%).
Choose water-resistant laminate or luxury vinyl plank (LVP) in high-moisture areas.
Install underlayment with vapor barrier.
8. Alternatives to Laminate Flooring for Wet Areas
If your home is prone to leaks or high humidity, consider:
Luxury Vinyl Plank (LVP) – waterproof, stylish, durable.
Ceramic/Porcelain Tile – best for bathrooms & kitchens.
Engineered Hardwood – more resistant than laminate but not fully waterproof.
9. Expert & Community Insights
From Reddit flooring users:
“If water sits overnight, you’re replacing boards.”
“Spare planks in closets saved me hundreds.”
“I switched to vinyl plank after two floods—zero regrets.”
From pros:
Always dry subfloor before reinstalling planks.
Never assume damage is surface-only—check underneath.
10. FAQs
Q: Can I fix swollen laminate flooring without replacing it?
👉 Minor swelling may flatten after drying, but usually replacement is necessary.
Q: How long can laminate floors withstand water?
👉 Only a few hours. Beyond 24 hours, damage is likely permanent.
Q: Can a hairdryer help dry laminate?
👉 No—high heat may cause more warping. Use fans + dehumidifiers instead.
Q: Will insurance cover my damaged flooring?
👉 Only if damage is sudden and accidental—not from long-term leaks.
Q: What’s the best mop for laminate flooring?
👉 Microfiber mop, slightly damp, never soaking wet.
Final Word
Water-damaged laminate flooring is stressful but manageable. If you act fast, you might save sections of your floor. For severe damage, replacement is often the best long-term fix.