2017 Exhibitor Directory

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Great Northern Insulation


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935 Keyes Drive
Woodstock, ON N4V 1C3

With over 37 years of experience and more than 200 fulltime employees across its six locations in South Western Ontario, Great Northern Insulation (GNI) services homeowners and industry professionals in the residential, commercial, industrial and agricultural sectors. 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.


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