Find 2 Door & Window Companies You Can Count On in Newmarket, ON

Simon and Sons specializes in supplying and installing high-quality windows and doors, serving Newmarket and surrounding areas since 1967. We offer energy-efficient products tailored to residential needs, emphasizing Canadian-made materials and personalized service. Our in-house team ensures professional installations with a focus on durability and customer satisfaction.

Keldan is a trusted provider of premium vinyl windows and doors in York Region, offering expert installation services for residential and commercial properties. With over 40 years of experience, we specialize in energy-efficient solutions that improve home insulation, reduce energy bills, and increase property value. Our commitment to quality is demonstrated through our Brick to Brick installation method and comprehensive warranties.