Our home is 13 years old and the whole bottom of the window is rotten. I understand the company is no longer in business and would like to replace just the sash. How do you replace the sash or order one?
A little clarification is needed. Do you mean that the bottom of the sash is rotten, or the sill? The sash is the part of a double-hung window that slides up and down. The sill is more likely to have rot. It is the bottom frame member of the window opening, that the sash comes in contact with when it is closed.