Great Northern Insulation
4.8/5
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For over 35 years, Great Northern Insulation has increased the comfort, energy efficiency, and durability of buildings and homes throughout Ontario. Our mission is to provide affordable solutions to each and every customer by reducing their energy costs, improving the acoustics of their living/working environment and addressing their unique fire protection requirements. We deliver these solutions with the most experienced staff in the industry. To achieve our goal of 100% customer satisfaction, we back all of our services with a satisfaction warranty, money back warranty, product warranty, and a sustainability warranty. We firmly stand by the statement that "There is more to insulating than just adding insulation". When selecting an insulation contractor, evaluate your options based on their experience, product expertise, customer service, and workmanship. Contact Great Northern Insulation today and experience what a true professional contractor can do for you! more... See more text

Products and Services

  • Blown Loose Fill Attic Insulation,
  • Spray Foam Insulation,
  • Cellulose,
  • Batt Insulation,
  • Blown-in Wall Insulation,
  • Crawl Space Insulation,
    • Fireproofing,
    • Thermal Barrier,
    • Insulation Removal,
    • Airsealing,
    • Acoustical System,
    • Cladding,
    • Firestop & Smoke Seal,
    • 3M Window Film,
    • Vapour Barrier,
    • Building Envelope Consultation,
    • Blower Door Testing,
    • Fibreglass,
    • Thermal Imaging,
    • Insulation Consultants,
  • more...
  • less...

Brands Carried

  • BASF Walltite Eco,
  • Honeywell,
  • Owens Corning,
  • Gaco Western,
  • Winroc,
  • 3M,

Specialties

  • Insulation Services,
  • Insulation Consultants,
  • Highest Performing,
  • Environmentally Friendly Products & Services,
  • On Budget,
  • Installed Right,
    • One Source / Full Service,
    • On Time,
  • more...
  • less...

Languages Spoken

  • English,
Useful Information

Opening Hours *Holiday hours

Monday
Tuesday
Wednesday
Thursday
Friday
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Methods of Payment:

  • Financing Available

Ratings & Reviews - Great Northern Insulation

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4.8/5
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    bgaw2189
    By

    We hired GNI to top-up our main floor attic to an R60 with cellulose blow-in insulation. Right from the beginning it was a very professional and friendly experience. The sales rep, Michael, answered all my questions and went beyond my expectations by even agreeing to wrap my fan duct line with an insulation sleeve that I had purchased. It only took about 4 hours for the guys to complete the work and they cleaned up nicely. Top notch company and highly recommend them!!

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    ron25934
    By

    Great customer service. Very friendly and efficient staff. Had an additional 12 inches of insulation blown into our attic. Great Northern Insulation consulted and 10 days later they installed the insulation.

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    wood7650
    By

    Great to work with GNI, again. Always Professional & a superb product

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    StaceyP838041
    By

    The technicians that came out to the house were very polite to my daughter as I was unable to there. They had done and completed everything that was expected from James Gouldburn who came out and gave the quote the first time. I would differently recommend your company to all friends and family. Job well done!!

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    AndrewC329762
    By

    From start to finish this Great Nothern Insulation was professional and did what they said they would do. It was not required but I accompanied the estimator into the attic prior to the work and then I went up after the work. They did exactly what they quoted and in my estimation met or exceeded the amount of insulation quoted. The installers were polite and helpful. The accounting department was helpful and processed the Government rebate application. I would recommend Great North Insulation.

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