Diamond

Commercial steel Doors & Frames built to last , Designed to the highest standards

Crafted with precision and built to last, our products are designed to meet the highest industry standards, providing reliable performance and enhanced visual appeal for residential and commercial applications alike. Explore our innovative solutions to elevate your entryways with style and strength.

100% Manufactured in Canada & USA

Specializes in Custom steel doors and Frames

Expedite manufacture and quick shipping facilities nationwide

The only facility in Canada equipped with the most advanced cutting-edge machinery in the industry

How We Work

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Diamond Manufacturing is one of Canada's leading custom steel door and frame manufacturer.

With our state-of-the-art machinery, Diamond’s unmatched innovation allows our clients to maximize their budgets while ensuring uncompromising quality and value.