Turn key Building Supply Solutions.

Building materials for all your projects.

Supplying you from Start to Finish.

— Alpha Building Supply is your partner specializing in a range of premium materials to bring your vision to life.

Building Materials

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

View Our Building Materials


Endless style and colour options from the brands you already know such as Maibec, Fraser, CapCod & James Hardie.

View Our Siding Products


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

View Our Decking Products

Quality Products

We take pride in offering a wide range of high-quality products and we'll help you find exceptional items that not only meet your needs but exceed your expectations.

View All Products

Buy Local & Save

As a member of Timber Mart, we are committed to assisting you in discovering the perfect products at a price that will make you glad you chose to shop locally.

Request a Quote

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

Backed By an Experienced Team.

— At Alpha Building Supply, we are more than just a supplier. We are a dedicated team committed to being the premier provider of high-quality building materials.

Let's break ground together.

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