Well, the two main ways of treating wood gutters are painting them or sealing them. Painting will protect the wood from the elements and extend its lifespan, while sealing will preserve the natural look of the wood and prevent it from rotting. In either case, it's important to make sure that any repairs are done properly and that gaps or cracks in the gutter system are sealed up to prevent water damage.

You can treat wood gutters with a sealant every few years to help protect them from the elements. However, if they are damaged, they will need to be replaced. If you're looking to seal your wood gutters, we recommend using a water-based sealant that is specifically designed for use on wood. Be sure to follow the instructions on the bottle carefully, and always test the sealant in a small, inconspicuous area before applying it to the entire gutter. Applying too much or not enough of the sealant can both cause problems, so it's important to be precise in your application.