Am I able to keep my existing window trim if I put in shutters? Absolutely! There’s almost never a need to remove or alter your existing window trim when you buy new plantation shutters. Natural Ovation wood shutters and patented Polywood shutters are offered in an array of frame styles to fit seamlessly into your current window trim. If your windows are trimless, we offer frame styles to install right onto the drywall around your window to secure 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 ensure that your window trim is tastefully complemented by the frame of your new window treatment.