By Mail

1125 Colborne Steet East,

Brantford, Ontario, N3T 5M1



By Phone / Fax

Toll Free (800) 265-8485

Phone (519) 752-2181

Fax (519) 752-2131



By E-mail

E-mail sales@mastersealwindows.on.ca



Master Seal Windows and Doors is a family owned business strategically located in Southern Ontario. We have been manufacturing and distributing a full range of quality window and door products locally and internationally since 1949.


To contractors, renovators, architects and private home builders - windows and doors are an integral part of every successful construction project. Master Seal Windows and Doors are engineered to be stylish, strong, durable and energy efficient with many standard features and options to choose from. Using the finest of raw materials, our skilled tradesmen blend new technologies with old world craftsmanship to exacting specifications and standards.  Master Seal Windows and Doors are proud to be a participating ENERGY STAR® manufacturer.


Master Seal Windows and Doors offer a comprehensive warranty package. Our friendly and knowledgeable sales and service staff have been well trained to serve all your construction needs.


We offer quality window and door products, on time, and at an excellent value. Choose Master Seal Windows and Doors!


Master Seal Windows and Doors © 2008