WELCOME TO SILVA'S ROOFING & SIDING LTD. IN HAMILTON Whether you're a contractor in the midst of new construction or a homeowner needing a re-roofing, Silva's Roofing & Siding Ltd. has the experience you want. A family-owned and operated business with 25 years of solid experience, we've provided roofs for much of the finer housing you've seen around the Hamilton area.