Can I keep my existing window trim if I put in shutters? Yes! There’s almost never a need to remove or alter your old window trim when you buy new plantation shutters. Natural Ovation wood shutters and deluxe Polywood shutters are offered in a variety of frame styles to fit easily into your existing window trim. If your windows don’t have trim, we also have frame styles available to install right onto the wall around your window to secure your gorgeous new shutters to your window opening.Your shutter installer will measure each of your house’s windows during your complimentary in-home consultation to make sure that your window trim is perfectly complemented by the frame of your new window treatment.