Ontario's Insulation Leader Since 1980

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Request a Free In-Home Assessment
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Welcome to Great Northern Insulation Peterborough

With Great Northern Insulation, local homeowners can be sure of quality products and quality installations. Managing both residential and commercial projects, GNI offers a comprehensive approach - from product sales, to on-site installations, to customer support. With GNI, customers are provided with a firm commitment to quality work, and a guarantee of complete satisfaction.

Financing As Low As $13/month OAC!

It's the perfect time to invest in your home comfort with our new and improved financing. We've partnered with Financeit to offer you an affordable monthly payment option for your next investment in the energy efficiency and comfort of your home. It's now easier than ever to make your home feel like new again.

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Proudly Serving Peterborough and Surrounding Areas

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