First Class Windows, Doors and Siding 'FREE UPGRADE TO TRIPLE GLASS UNTIL July 31st' "Making window buying a paneless experience". Our Special details can be found on our website (link below). Up to 10 Windows or 100 Sq. Ft. of windows supplied and installed. First Class Windows, Doors and Siding has been selling and installing quality windows, doors and exterior siding products to southwestern Ontario homeowners since 2011. Our quality doors and windows carry the best warranties in the industry. We offer window and patio door products from Stage Windows, Vinylbilt Windows and VWD windows. We offer Dorplex steel and fiberglass entry and garden doors. Siding products carried are from Royal, Gentek and Mitten. We offer a no pressure free quote with exceptional pricing. First Class does not have to be expensive! BBB A+ Member since 2011 $2 Million Liability Insurance Homestars Best of Award Winner 2021