Founded in 2003 by Voytek Opalski, Opal Enterprises Exterior Remodeling is a Best Pick window and door replacement contractor serving the Chicago area. Known for quality workmanship, premium materials, and trusted results, the company specializes in custom prefinishing on wood interior windows and full-frame window installation. Opal Enterprises is an Andersen Showroom Dealer as well as an EPA Lead-Safe Certified Firm.