AS SEEN ON HGTV PROPERTY BROTHERS! Robertson Windows is a family run company that has been providing quality window and patio door installations throughout the Vancouver’s Lower mainland. We proudly supply and install high quality Vinyltek windows and patio doors including folding doors for your single and multi-family residential retrofit and new construction projects. With over 45 years of operating experience, Robertson Windows recommends installing ENERGY STAR® Vinyltek Windows. Backed by a lifetime warranty for as long as you own your home!