Can I keep my old window trim if I install shutters? Yes! There’s almost never a reason to get rid of or make alterations to your existing window trim when putting in new plantation shutters. Natural Ovation wood shutters and patented Polywood shutters are offered in a variety of frame styles to fit easily into your current 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 secure your stunning new shutters to your window opening.Your installer will measure each of your individual windows during your free design consultation to ensure that your window trim is tastefully complemented by the frame of your new window treatment.