SIS staff were easy to deal with, knowledgeable, and professional throughout our renovation job. Our already high expectations were exceeded in terms of quality of the products used, installation skills of the crew, and warranty offered. SIS was very flexible in terms of accommodating some of our less common requests, such as additional architectural details, even though these probably made their job more difficult. The fact that SIS has a showroom where we could view samples of installed product was also very helpful to us in making the necessary material and product selections. Additionally, SIS staff made some design suggestions that resulted in our renovation job being a huge success. We would definitely recommend SIS to others and use them again for our next project!