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About GREAT NORTHERN INSULATION
Great Northern Insulation is Canada's largest full-service insulation contractor and a 100% Canadian-owned leader in the home comfort industry. With over 40 years of experience, they provide high-quality insulation services for residential retrofits, new construction, and commercial projects across Ontario.
Specializing in custom home builder, energy efficiency, insulation, GREAT NORTHERN INSULATION has completed across .
Services
Custom Home BuilderEnergy EfficiencyInsulationNew Construction
Services listed by the contractor.
What they say about themselves
Self-described
Canada's Largest Insulation Contractor
100% Canadian Owned
40+ Years Experience
Free In-Home Assessment
Licensed & Insured
Satisfaction Guaranteed
These are claims provided by the contractor. SquaredAway hasn't independently verified them.
Data provenance
Profile compiled from 1 building permits issued in Old Ottawa, 2022.