DuoTemp Home Improvements has been helping Canadian homeowners in the Niagara Region for over 60 years. In that time we have seen a lot of change in the exterior home improvement industry and rapid advancements in the technology and products available – all for the better of homeowners! Exterior home improvements From single window replacements to complete architectural overhauls we are well positioned to deliver exceptional products and installation at competitive prices. We have access to a variety of Canadian suppliers and are a certified Gentek Premium Renovator. The core of our business comes from replacement vinyl windows though we also specialize in Entry & Patio Doors, Siding / Soffit & Fascia, Awnings and Sunrooms.