GNI is a leader in proving the best customer service to our unique blend of clients ranging from home owners to large scale construction companies, proudly serving all of Southern Ontario. GNI offers a complete list of building envelope products and services for new and retrofit projects to increase energy efficiency, comfort, and structural durability. These solutions include insulation, air sealing, fireproofing, panel and cladding, building diagnostics, thermography, and more. We’re also a network of talented people who care about each other and believe deeply in what we do. If you have a thirst for personal growth, a dynamic personality, and strong interest in the construction field, this is the company for you!