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Exceeding Your Expectations, One Home at a Time.

Driven by a passion for sustainable building science, Great Northern Insulation has proudly served Ontario homes and businesses for over 40 years. We specialize in enhancing energy efficiency, comfort, and sustainability through insulation solutions. We're committed to providing exceptional customer service, ethical practices, and top-quality workmanship.

What Makes Us Different?

Our team comprises experienced professionals who have a deep understanding of building science and a genuine desire to help you achieve your comfort and energy efficiency goals. We are committed to:

  • Scientific approach: We utilize evidence-based methods and cutting-edge technology to assess your needs and deliver targeted solutions.
  • Sustainable solutions: We offer a variety of eco-friendly insulation materials, including recycled paper and hemp insulation, to minimize environmental impact.
  • Exceptional customer service: We are dedicated to providing personalized attention, clear communication, and seamless project management from start to finish.

Residential Services

  • Retrofits: Enhance your home's energy efficiency through wall, ceiling, and attic insulation.
  • New Construction: Partner with us to build a new home that exceeds energy-efficiency standards.
  • Air Sealing: Prevent drafts and improve indoor air quality with expert sealing services.

Commercial Services

  • New Construction & Renovation: We offer comprehensive insulation solutions for all types of commercial buildings, including offices, schools, and industrial facilities.
  • Energy Audits: Identify potential energy savings and optimize building performance.
  • Property Management Solutions: We partner with property managers to improve tenant comfort and reduce operating costs.

Our Expertise

  • Insulation Installation: We are certified installers of various insulation materials, including cellulose, fiberglass, spray foam, and radiant barrier.
  • Building Science Consulting: Our team can provide expert advice on energy efficiency, building codes, and sustainable building practices.
  • Project Management: We manage your project from initial planning through completion, ensuring efficiency and accountability.

We are proudly serving residents and businesses throughout Southern Ontario, Muskoka, Haliburton, and the Greater Toronto Area. Contact us today to experience the Great Northern Insulation difference!

Reviews (403)
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Positive: The company's workmanship and attention to detail were praised by some customers.
Negative: The company failed to provide clear communication, received poor reviews for its contracts and quotes, and was criticized for the mess caused by its technicians.

Quality of Work

The reviews suggest that the quality of work varies greatly. Some customers, such as Doug Tarry and Blaine Cressman, praised the company's workmanship, expertise, and attention to detail. For example, Blaine Cressman mentioned that the team was very open to discussing the product and service, and their work was ideal. On the other hand, others, like Bill Trenouth and Matt Lennox, reported poor workmanship and messy jobs.

Communication and Customer Service

Communication and customer service seem to be a major issue for some customers. Authors Christine Nutt and Vicki Burbank expressed frustration with the lack of clear communication and explanations from the sales team. Christine Nutt mentioned that the sales representative, David, failed to explain the whole procedure to her and didn't provide a clear quote, while Vicki Burbank mentioned that the representative failed to follow up after the initial quote.

Contract and Quote

The reviews also highlight issues with contracts and quotes. Some customers, like Christine Nutt and Matt Lennox, mentioned receiving quotes that were not detailed or clear. Christine Nutt mentioned that she received a quote with a "sign here" instruction, while Matt Lennox mentioned that he had to deal with the company for over a year to get a receipt for a government rebate.

Mess and Cleanliness

The cleanliness of the work site and the mess caused by the technicians seem to be a concern for some customers. Authors Christine Nutt and Bill Trenouth mentioned that the technicians left a mess, while Alecia mentioned that the technicians were professional and experienced.

Overall Experience

The overall experience of dealing with Great Northern Insulation seems to be mixed. While some customers were satisfied with the service and workmanship, others were unhappy with the communication, contracts, and cleanliness. It's essential for potential customers to carefully research the company and read reviews from various sources before making a decision.