Great Northern Insulation

When it comes to insulation for your home, office or factory, Great Northern Insulation is the smart choice. We offer a range of environmentally-sustainable products that can help you improve comfort & energy efficiency. We are Ontario's leading insulation company. We specialize in spray foam insulation, attic insulation, basement insulation, fiberglass batts and blown in insulation. Our Milton office proudly serving Toronto and the GTA

Great Northern Insulation

Our address: 450 Industrial Dr.
Milton Ontario L9T 5A6

Telephone: 1-800-265-1914


Service: spray foam, attic insulation, insulation, blown in insulation

Hours of Operation

Monday 6:30AM - 5:00PM
Tuesday 6:30AM - 5:00PM
Wednesday 6:30AM - 5:00PM
Thursday 6:30AM - 5:00PM
Friday 6:30AM - 5:00PM
Saturday Closed
Sunday Closed

Great Northern Insulation Articles

Choosing spray foam insulation for your home

Spray foam insulation is the best solution for your home. There’s no other product on the market that can provide the kind of short and long term benefits.

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The ABC’s of spray foam insulation – how it all works

Spray foam insulation spreads out quickly and evenly, expands into place, and hardens into a super-dense blanket of insulation that coats the entire space.

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Attic Insulation: Fiberglass Batts – Blown Insulation – Spray Polyurethane Foam

While the above-mentioned insulation products are popular for attics, they can be installed in exterior walls, basement floors, and even attached garages.

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