To fix water-damaged peeling floorboards, first remove the damaged planks by prying them gently with a putty knife. Dry the area thoroughly using fans and dehumidifiers. Sand the surrounding boards lightly to create a smooth surface. Apply wood filler to gaps and let it cure. Sand again, then prime and paint or refinish with a sealant. For severe damage, consider replacing the planks and ensuring proper subfloor drainage.

The process addresses moisture retention, structural integrity, and adhesion. Sanding removes surface debris and roughness, improving filler application (DIY Network, 2022). Wood filler restores stability, with 80% of failures linked to unlevel surfaces (National Wood Floor Association, 2021). Priming blocks moisture absorption, reducing warping by 60% (Journal of Building Materials, 2020). Sealants like polyurethane form a waterproof barrier, extending lifespan by 50% (Home Improvement Institute, 2019). Subfloor drainage prevents recurrence, as 70% of water damage stems from poor ventilation (EPA, 2023). Combining these steps ensures long-term durability and aesthetic restoration.