How to Remove Pet Urine from Hardwood Floor
This stain sets quickly. Start treatment as soon as possible for the best results. The longer you wait, the harder it becomes to remove completely.
Removal Method
Wipe up urine immediately. Speed is critical with hardwood because urine seeps into the wood grain and can cause permanent black staining.
Apply enzyme-based cleaner to the area. Let sit per product directions.
Wipe clean with a damp cloth. Dry immediately. If any discoloration remains, apply a paste of baking soda and water, let sit 2 hours, wipe clean.
For dark stains that have penetrated the wood: sand the area lightly, apply wood bleach (oxalic acid), neutralize with borax solution, then refinish. This is advanced DIY or professional work.
- Do not let urine sit on hardwood for any length of time
- Do not over-wet the area (water damage on top of urine damage)
Professional floor refinishing. Severe urine damage may require board replacement.
Last reviewed: March 20, 2026