Keystone Exterior Finishes is a full-service installer of exterior building solutions. Based in Milwaukee, Wisconsin, we are a firm that specializes in the installation of EIFS, stucco and stone. When it comes to quality, we take no shortcuts. We firmly believe the application and installation of these materials is utmost important when it comes to the overall integrity of your project. No matter the style you’re looking to achieve, we’re here to help you accomplish your unique vision – on time, on budget and to the quality standards you expect.