Bill's Siding and Windows Bill’s Siding & Windows is locally owned and has been servicing Saint John and surrounding areas since 1979. We offer high-quality siding and windows for residential, commercial, and multifamily properties. Our vinyl windows and siding include a lifetime warranty and have some of the highest ratings in the industry. Our installation is backed by the strongest warranty in the business. We offer an excellent section of windows, doors and siding products including Mitten Vinyl Siding, Global Windows & Doors, and T-Rio Windows & Doors. Our mission is to excel in today’s competitive industry by providing our customers with outstanding services backed by quality, reliability and superior products and professional installation. Whether you are planning on new construction or renovation, we have the products and services to transform your home. We will help you the find the products that fit your needs and budget!