Can I keep my existing window trim if I install shutters? Yes! There’s seldom a reason to take out or make alterations to your old window trim when you buy new plantation shutters. Natural Ovation wood shutters and deluxe Polywood shutters are available in an array of frame styles to fit easily into your current window trim. If your windows are trimless, we offer frame styles to install right onto the wall around your window to secure your beautiful new shutters to your window opening.Your installer will measure each of your house’s windows during your free in-home consultation to make sure that your window trim is perfectly complemented by the frame of your new shutters.