About Us

Supreme Door provides exceptional long-term door solutions for our commercial, industrial and institutional clients throughout Newmarket and York Region.

Supreme Door specializes in the supply of steel and wood fire rated doors, steel frames, door hardware, padlocks and specialty hardware. Unique installations and custom retrofit work are our specialty!

Supreme Door stocks a wide variety of commercial and residential products from many trusted major brand name manufacturers including Daybar, Dorex, Kasp, KN Crowder, LCN, Schlage, Von Duprin, and many other leading manufacturers.

Supreme Door's extensive inventory and knowledgeable staff make us your local source for providing you with long-term solutions for all your door and hardware requirements! Call us today or visit our showroom!