Superior products at the right price.

Building materials for all your projects.

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Your premier supplier of high-quality building materials

At Alpha Building Supply we prioritize offering a diverse selection of products to meet our clients' varied needs while ensuring exceptional quality and customer satisfaction. Our commitment to delivering unparalleled variety and superior products sets us apart as the premier supplier in the industry.

ICF & Foundation

ICF & Foundation

Experience unmatched durability and energy efficiency with our selection of Insulated Concrete Forms (ICF) and foundation materials.

View Our Foundation Materials
Tools & Accessories

Tools & Accessories

Equip yourself with the right tools and accessories to streamline your construction projects. Trust in our reliable products to meet your construction needs.

View Our Tools & Accessories
Building Materials

Building Materials

Keeping you and your team on schedule with the necessities from lumber, plywood, EWP, insulation, treated lumber and more.

View Our Building Materials
Exterior Finishes

Exterior Finishes

Transform the look of your property with our premium exterior finishes. From beautiful siding options to stunning stone veneers.

View Our Exterior Finishes
Roofing & Trusses

Roofing & Trusses

Protect your investment, whether you're looking for durable shingles, reliable metal roofing, or custom trusses, we have you covered.

View Our Roofing & Trusses
Decking & Fencing

Decking & Fencing

We work with some of the top decking suppliers in the industry to bring you the best products available.

View Our Decking & Fencing
Windows & Doors

Windows & Doors

Elevate the style and functionality of your space with our impressive selection of doors and windows from elegant entry doors to energy-efficient windows.

View Our Doors & Windows
Interior Finishes

Interior Finishes

From elegant flooring options to exquisite mouldings and trim, we provide an extensive selection of materials that add style and sophistication to any space.

View Our Interior Finishes


Find the perfect finishing touches for your projects with our comprehensive range of hardware solutions combines durability, functionality, and aesthetics.

View Our Hardware
Adhesives & Sealants

Adhesives & Sealants

The right adhesive or sealant to achieve professional-grade results and enhance the longevity of your projects.

View Our Adhesives & Sealants

We Deliver Excellence.

— From foundation to finishing touches, we bring quality products straight to your doorstep, ensuring a seamless and convenient building experience.

Brands we trust.

Want to become a vendor? Let's get you in touch with our purchasing team!

You're in good company.

Don't just take our word for it - discover why our customers trust and rave about our exceptional quality and service.
The staff talked me out of a higher end product as he felt it was too nice for the application I was using it for (rental property). It was less money for him but he was more concerned with finding me the right product that met my needs. 10/10
Matt Macausland
We purchased material recently from Alpha Building Supply for the renovation of our showroom and we are pleased to learn there are still businesses out there that still uphold traditional customer service and values. The staff was informative, helpful and courteous from start to finish. Was a pleasure. Highly recommend!
Julian Hanoun
The team of professionals at Alpha Building know exactly how to deliver exceptional customer service and response time. As a custom home builder there is nothing more important then your relationship you require with your building supply company.
JA Custom Homes
This building supply company had everything I needed for a recent large renovation project. The staff were great, everything arrived on time and the pricing was the best around!
B And
If you’re looking for a one stop shop for all your building needs, look no further. The customer service, and great prices are unbeatable. I wouldn’t recommend going anywhere else!
Carmen Montana
I’m currently building a new home and my experience in choosing colours for my exteriors with Alpha was extremely easy and enjoyable! Highly recommend using them!
Joe Francelj
Amazing spot for all your home needs! People who are looking to modernize their homes and renovate a little, I suggest to try them out. The customer service is super helpful and gives good suggestions.
Ilan Shagai
Awesome place! Very knowledgeable! The staff were awesome to deal with, I’d suggest getting all your construction material from the team at Alpha.
One Stop Home Comfort
Amazing new building supply store with a great selection and very knowledgeable staff. Highly recommend!
Quality materials and great/attentive staff. Would highly recommend. Will be coming here for all my future needs.
Kassidy Seguin
Can’t recommend these guys enough. They know their stuff and are super helpful. Overall great customer service.
Danica Craig

Let's break ground together.

Explore our wide range of products and request a quote today to kick-start your construction journey.