Your ONE-STOP Building Supplies Store in Mississauga
Welcome to WinCA Building Supplies, your trusted source for building materials in Mississauga, Ontario.
With over 50,000 sq. ft. of retail space, we offer a wide selection of products, including lumber, drywall, insulation, plumbing, electrical, HVAC, doors, tools, paint, flooring, tile, and kitchen and bathroom vanities.
From professional contractors to DIY homeowners, we're here to help you get what you need for every project.
Visit us in Mississauga and let’s get your next project started!
November 2026 Promotion
Explore Our Products
Find the Right Products for Your Project
Building Supplies for Mississauga & the GTA
Are You a Contractor?
Get 2% OFF Eligible Products!
No Discount Cap. The More You Buy, The More You Save!
Bring your business card or business documents, along with your name and phone number, to register.
*Certain products are already priced low and excluded from additional contractor discounts.
Visit Us
We’d love to see you in person!
Stop by during our business hours, explore our products, and find what you need for your next project.
Store Hours
Open today | 08:00 a.m. – 06:00 p.m. |
Paint Colour Matching Service Available Starting at 9:30 AM
Please Note: Holiday Hours May Vary
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