Specializing in
Structural Steel
Fabrication & Erection

Founded in 1989, Allen Steel Company has become a leader in the Bay Area in the structural steel industry. Our expertise in the fabrication and installation of structural steel for industrial, commercial and residential applications exceeds expectations.

We are proud of the quality reputation we've earned as the steel fabricator of choice, and you can be assured working with Allen Steel Company is the right choice for you.

We focus on providing top quality fabrication and processing services.

Allen Steel is dedicated to providing the highest level of construction services.


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Seismic Retrofits