Barrier Sciences Group

Great Northern Insulation (GNI) is a leading full-service insulation contractor based in Lakeshore, Ontario, with over 40 years of experience in the industry. The company is dedicated to enhancing energy efficiency for residential and commercial clients through a range of sustainable insulation solutions, including cellulose and hemp insulation made from locally recycled materials. Recognized as Canada's largest insulation contractor, GNI prides itself on its commitment to customer satisfaction and professional development. With a team of licensed, certified, and insured professionals, the company ensures exceptional service and support throughout every project, aiming to exceed client expectations at every turn. Generated from the website