Manufacturing Locations - USG00 Third Line Road HWY #0 NOA 0HO √ √ √ Montreal, Quebec, Canada 0000 Notre Dame Street E H0N 0L0 √ √ Oakville, Ontario, Canada 000 Fourth Line Road L0L 0B0 √ Surrey, British Columbia, Canada 00000 Bridge Road √British Gypsum: The UK's Top Manufacturer of Interior .British Gypsum uses cookies to deliver superior functionality and to enhance your experience of our websites. Information about our cookie policy can be found here.Continued use of this site indicates that you accept this policy.