Looking for the best window treatments and coverings in the Denver area? You've found them! Formerly known as Milestone Shutters, Sunburst Shutters Denver, offers the best value in window treatment products - especially when it comes to shutters (wood, faux wood, reclaimed wood, sliding barn door). Our Polywood shutters are the best-selling shutter in America. Not only are they energy efficient and durable, they're also easy to adjust and make for beautiful, modern window coverings.