Where contractors & do-it-yourselfers shop. Since 1968!






St. Catharines Building Supplies... your one-stop shop for all your construction, landscaping and design needs. We have proudly served Niagara builders, contractors and individuals with one of the largest indoor and outdoor displays of building and landscaping in the Niagara region. We're located just North of the QEW. If you don't see what you're looking for, let us know and we'll get it for you. Request a quote or contact us today.

Apply today! Click here to see our careers page and all available positions. 

Columns Siding Roofing Exterior
Columns Siding Roofing Exterior Finishes

Garage Door
Garage Doors

    We also stock:

       - Stone
       - Sand
       - Concrete Mix
       - Mortar Mix
       - Rebar 10mm/15mm
       - Drywall supplies
       - Tools
       - Doors & Trim