Proudly owned and operated for more than 40 years, GNI serves Ontario’s industrial, commercial, and institutional sectors with a deep understanding and expertise for insulation, air barrier solutions, fireproofing, firestopping, soundproofing, and more. Our reputation is our greatest asset, and we take pride in providing quality solutions for projects of any size or type.
From stadiums and high-rise buildings that define a skyline to warehouses and small businesses, Great Northern Insulation's commercial services teams are ready to assist you with your next project.
Skilled commercial spray foam team that can install to all substrates. GNI has the ability to work on any size project, with experience installing on P3 projects to high-rise apartments.
GNI installs structural steel fireproofing in both cementitious and intumescent paint varieties. Our specialist fireproofing teams excel at detailed applications.
Acoustical commercial soundproofing that traps and deadens sound. Rigid, semi-rigid and spray-applied treatments available for any building need.
GNI is member of the Firestop Contractors International Association (FCIA) with experienced firestop and smoke seal craftspeople.
Our commercial division is a Gold Medal Certified Henry Bakor Applicator, capable of intricate, detailed applications for complicated building envelopes.
Get in touch with the commercial division at GNI to find out how we can become an extension of your team on your next project