Dufferin Windows Limited was started in 1972 as a 3500 square foot custom wood window shop and has since grown into a 35 000 square foot manufacturing facility that produces many standard and custom window and door products. Our product lines include wood and vinyl clad and all vinyl windows, steel and fibreglass insulated entrance systems and patio doors. All products are available in standard or custom sizing and because we are a family business, we have the ability to easily adapt to virtually any customer's request. The dedication of our employees is one of our strongest assets. Their input and skill level is highly regarded and invaluable. Customer satisfaction has always been a huge part of what we do. We strive to keep our quality high and our service work to a minimum. We use only quality materials in every product we manufacture and it is obvious in the end products we provide to our customers.