Fortress Windows is rated #1 Windows & Doors Company in Toronto by Homestar's. Fortress Windows has an A+ rating in the BBB. Proudly servicing Toronto and surrounding area for 30 years. We pride ourselves on delivering exceptional service at great rates. At Fortress Windows & Doors we grow our business through your referrals, which is why you can expect us to try our best to exceed your expectations and truly impress you. We specialize in Window & Door replacement, Eavestrough, Gutters