Johns Manville Canada Inc

Buildings hold heat or lose it based on how well the insulation behind the walls was chosen and installed. From our Calgary base, we are the Canadian arm of Johns Manville, and we bring fiberglass, mineral wool, and blow-in insulation products to projects across Alberta and beyond.

Our batts and loose-fill lines go into homes, commercial buildings, and industrial facilities where thermal performance and fire resistance both count. We were early to formaldehyde-free fiberglass, using a plant-based binder that cuts cleaner and creates less dust on the job, which helps the trades handling it every day.

We also carry foam board and mineral wool made from basalt fibre for spaces that need a tougher rating. Builders in Calgary reach us through local supply partners, with delivery usually scheduled within a couple of business days. Whether the job is an attic retrofit, a new roof assembly, or a large mechanical space, we help match the right product to the wall, deck, or cavity so the finished building stays efficient for years.