Building Supplies in Mississauga — Masonry, Stone & Construction Materials
Serving Mississauga contractors, builders, and developers since 1976. Premium concreting supplies, masonry materials, and natural stone.
Family-Owned Since 1976
500+ Products In-Stock
Serving the Entire GTA
Featured Products & Solutions
Grand Valley Building Supplies is a family-owned building supply company that has supported the GTA’s construction industry for close to five decades. Grand Valley supplies contractors, masonry professionals, and custom home builders across Mississauga and the wider Greater Toronto Area with high-quality construction materials, concreting supplies, and contracting accessories.
From natural stone and masonry units to drywall, lumber, and aluminum siding, Grand Valley Building Supplies carries the full spectrum of materials that Mississauga-area job sites demand. Whether you’re a general contractor sourcing bulk construction materials or a developer selecting premium stone for a custom residential build, Grand Valley’s knowledgeable team and deep product inventory make it one of the most dependable building supply sources serving Mississauga and the GTA.
Built on Reputation
Grand Valley Building Supplies stocks a comprehensive catalogue of construction materials for every stage of a Mississauga build — from the foundation right through to the finished façade.
Masonry Supplies
From concrete block and brick to specialty masonry units, Grand Valley carries the masonry materials Mississauga contractors depend on for structural and decorative applications.
Natural Stone
Premium natural stone sourced from leading suppliers including Polycor, Banas Stone, and STONEArch. Ideal for custom facades, landscaping, and interior detailing across Mississauga projects.
Landscape & Hardscape Supplies
Natural and decorative stone for Mississauga outdoor projects — from patio pavers and retaining walls to garden edging and decorative aggregates. Grand Valley carries landscape hardscape lines from Unilock, Techo-Bloc, Rinox Hardscape, Bestway Stone, and Muskoka Rock.
Contracting Supplies & Accessories
Equip your full build with our accessories range — anchors, fasteners, sealants, joint products, and specialty contracting supplies for Mississauga trade professionals.
Stone Lines & Collections
Explore curated stone collections in dozens of finishes — from smooth and polished to flamed, sandblasted, and tumbled — for architectural, landscape, and interior projects.
Thin Veneer Stone
Real stone, engineered for lighter loads. Grand Valley's thin veneer collection lets Mississauga contractors and builders achieve a full natural stone aesthetic on facades, feature walls, and interior applications — without the structural demands of full-thickness stone. Brands include Stonerox, Cultured Stone, Erth Coverings, Dutch Quality Stone, and Pangaea Stone.
Why Mississauga Contractors and Builders Choose Grand Valley Building Supplies
Grand Valley Building Supplies has served construction projects across the GTA since 1976 — nearly 50 years of industry knowledge. Located in nearby North York, the company provides builders, contractors, and developers throughout Mississauga with in-stock masonry, stone, concreting, and contracting supplies from brands including Arriscraft, Lafarge, Rockwool, and Polycor.
49+ Years Serving the GTA
Family-owned and operated since 1976, Grand Valley has cultivated lasting relationships with the GTA's most active construction firms, custom home builders, and masonry contractors — including those operating across Mississauga.
Top-Tier Brand Portfolio
Grand Valley carries trusted construction brands including Arriscraft, Lafarge, Polycor, NG Stone, Rockwool, CertainTeed, Banas Stone, and STONEArch — giving Mississauga builders access to premium-grade materials under one roof.
Comprehensive In-Stock Inventory
With 500+ products across masonry, stone, drywall, lumber, siding, and accessories, Mississauga contractors can source multiple material categories in a single trip — reducing procurement time and supplier complexity.
Expert Product Knowledge
Our team speaks the language of construction. From specifying the right stone finish for a custom façade to recommending the correct masonry unit for a structural application, Grand Valley's team offers practical, job-site-relevant guidance for every Mississauga project.
Our Trusted Suppliers
We partner with industry-leading manufacturers to bring you the highest qualit building materials
Building Supply Delivery & Pickup Service Across Mississauga and the Surrounding Region
Grand Valley Building Supplies serves construction projects throughout Mississauga and the broader GTA. Our North York showroom provides accessible service for contractors working across the city and neighbouring communities.
Mississauga builders can arrange product pickup directly from our North York warehouse or contact our team about delivery options for larger construction material orders. We regularly supply job sites across the following areas:
Delivery Options
Same Day Delivery
Need materials today? We've got you covered with same day service in most GTA areas.
Flexible Scheduling
Early morning, evenings, and weekends pick the time that works best for your job site.
Moffett / Forklift Delivery
Precision placement with truck-mounted forklift. No job too tight or too high.
Flatbed Service
Perfect for large loads, steel, lumber, drywall, and heavy equipment.
Building Supplies in Mississauga
Where can I buy building supplies near Mississauga?
What types of construction materials does Grand Valley Building Supplies carry?
Grand Valley carries a wide range of construction materials for Mississauga builders, including masonry units, natural stone in 100+ finishes, concreting supplies, drywall, lumber, aluminum siding, joint products, anchors, and project accessories. The full product catalogue is available here.
Does Grand Valley Building Supplies serve contractors and trade professionals in Mississauga?
Yes. Grand Valley primarily serves general contractors, masonry contractors, custom home builders, and developers across Mississauga and the GTA. Trade professionals can reach the purchasing team at purchasing@grandvalleybuildingsupplies.ca or call (416) 746-1501 to discuss project requirements and bulk supply needs.
Which stone brands does Grand Valley carry for Mississauga projects?
Grand Valley is an authorized supplier for Polycor, Banas Stone, STONEArch, and NG Stone — offering premium natural stone options for custom residential and commercial projects across Mississauga.
Ready to Supply Your Mississagua Construction Project?
Talk to our team about product availability, bulk orders, or project-specific recommendations.