Our wooden floors, properly looked after, will last a lifetime. We offer a 25 year guarantee. Floors with at least a 3mm wear layer can be sanded once or twice. Floors with a 4-6mm wear layer can be sanded at least 3 or 4 times. When our floors are properly maintained they may never need sanding at all, so you can see why we are confident of the longevity of our floors.