Will I be able to keep my existing window trim if I put in shutters? Yes! There’s seldom a reason to remove or do work on your old window trim when putting in new plantation shutters. Natural Ovation wood shutters and premier Polywood shutters are offered in an array of frame styles to fit easily into your existing window trim. If your windows don’t have trim, you can choose a specific frame style to install right onto the wall around your window to fix your beautiful new shutters to your window opening.Your shutter installer will measure each of your home’s windows during your free design consultation to make sure that your new shutters will fit gorgeously with your window trim.