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Insulation
Great Northern Insulation
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94%

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Reviews for Great Northern Insulation

Average customer rating:
9.5 10 (926 reviews)

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Private User
Private User
Private User reviews Toronto, ON
9/10

Good work!

Installers:
These guys are a v v important part of the process. Thankfully, my 2 guys Jermaine and Jamal answered all my questions patiently, which i most appreciate. They took awhile to get started, which i didnt understand. However, then they put the time into the job, which seemed appropiate. Really, time will tell how the job was done.
One minor suggestion is for them to have a few more screw drivers on hand just incase.
Sales guy:
Again, this person, Alex, answered all my questions patiently. One suggestion for future clients is to have Alex view all parts of the attic so that no surprises come up.

Again, this person, Alex, also answered all my questions patiently. I would just suggest that

Approximate cost of services:
$4,000.00
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Company Response

Thank you very much for your feedback. Your opinion is valued greatly and it helps us improve our standard of service. We truly appreciate your business. Thank you for choosing Great Northern Insulation.

Private User
Private User
Private User reviews , ON
10/10

Screened Porch Winterizing

Very pleased with GNI all around. Prompt quoting, sensitive to adapting to COVID schedule changes, once booked they adhered to schedules and plans, friendly and knowledgable staff, tour of the finished product at completion, thorough clean-up afterward, minor overspray issue was dealt with promptly. We would recommend them without reservation.

Approximate cost of services:
$10,000.00
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Company Response

Thank you very much for choosing the team at Great Northern Insulation, and for taking the time to share your feedback with us. It means so much when our best customers share their experiences. We are very grateful for your business.

JW in Toronto
JW in Toronto
0 reviews Kawartha Lakes, ON
10/10

New Home Complete Insulation

Great job with high attention to detail and products used. Have built many custom homes and GNIs work was excellent at a fair price.

Approximate cost of services:
$16,000.00
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Company Response

Thank you for leaving us such a kind review, we truly appreciate your business. Thank you for choosing the team at Great Northern Insulation.

Willie in Toronto
Willie in Toronto
0 reviews Toronto, ON
10/10

Attic insulation

GNI workers are very pleasant and professional.
All issues were dealt with in a timely manner.

Approximate cost of services:
$4,000.00
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Company Response

Thank you very much Willie for your positive feedback. Your opinion is valued greatly. We truly appreciate your business.

Darlene from London
Darlene from London
0 reviews London, ON
10/10

Attic insulation

Great job. Thorough and clean. No damage to anything. Very satisfied. Guys were friendly too.

Approximate cost of services:
$2,500.00
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Company Response

Hi Darlene, Thank you so much for this review. We really appreciate you being our customer and are glad we were able to meet your expectations!

Des
Des
1 review London, ON
10/10

Attic Insulation

Guys showed up and went right to work . Evident that they knew what they were doing. Protected floors and carpets on way in and out , were friendly, accommodating and cleaned up after they were done, not to mention I noticed difference walking upstairs the same day. Great job and highly recommend. Thanks !!

Des Chin Sang

Approximate cost of services:
$1,700.00
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Company Response

Hi Des, Thank you for your thoughtful review. We’ll make sure to pass along your kind words to the team here at Great Northern Insulation. We are happy your home is more comfortable now. Thanks again!

Joan
Joan
0 reviews Georgina, ON
10/10

Insulation

Incredible customer service. Fast, efficient and friendly every step of the way. From our first email to the completed job, we were kept apprised the entire time. Thank you for appreciating us as a customer!! I would not hesitate, and have already recommended your company to others. I wish you continued success.

Approximate cost of services:
$1,200.00
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Company Response

Hi Joan, Thank you for your awesome review of our services. We are glad we could help make your home as comfortable as possible. We'll be sure to pass along your kind words to the team. Thanks again for choosing Great Northern Insulation and for recommending us to others.

Private User
Private User
Private User reviews Ottawa, ON
10/10

Attic Insulation

The company won our bid with competitive pricing and scheduled the job fairly quickly. With all the home renovation delays it was refreshing to have the work done within just over a month of the initial quote. On the day the team was quick and clean. they updated me on what they were doing and kept to themselves. Thanks GNI!

Approximate cost of services:
$2,900.00
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Company Response

Thank you very much for your thoughtful and kind review. We are so glad you are happy with our crew’s work! We’ll be sure to pass along your note to our team. Thanks again for choosing the team at Great Northern Insulation.

Paul in Windsor
Paul in Windsor
1 review Lakeshore, ON
10/10

Attic Insulation

Great Northern Insulation did a great job insulating my attic. They took care not to cause a mess and the project was completed quickly.

Approximate cost of services:
$1,200.00
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Company Response

Thank you for your awesome review of our services, Paul. We are so glad we could help make your home as comfortable as possible. Thanks for choosing the team at GNI!

Gord
Gord
5 reviews Toronto, ON
10/10

Job well done

GNI showed up on time and did a great job insulating our house. In particular they went the extra mile spraying the headers in the attic which were a big source of heat loss. I highly recommend them!

Approximate cost of services:
$20,000.00
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Company Response

Hi Gord, Thank you so much for leaving this kind review. We really appreciate you being our customer and are glad we were able to meet your expectations! Thank you for choosing the team at Great Northern Insulation.

The reviews on this page are the subjective opinion of the Author and not of HomeStars Inc.

More about Great Northern Insulation

For over 40 years, we have helped Ontario homeowners and builders build safer, more energy-efficient and sustainable communities. With a broad range of products and services, we are your insulation experts for existing home renovation upgrades and new residential home construction—satisfaction guaranteed. Proudly serving all of Southern Ontario, we are Ontario's largest insulation company and are Energy Star and Foam Masters™ certified. Get in touch for a Free In-Home Assessment—contact us today to learn more.

CATEGORIES
Home Inspection, General Contractors, Renovation Advisors, and Insulation
PRODUCTS
✓ Spray Foam (1/2 lb open cell) ✓ HFO Spray Foam (2 lb closed cell), ✓ Cellulose (Blown and dense-pack) ✓ Fibreglass (Batts, blown and blanket wrap) ✓ Mineral Wool (Batts) ✓ Hemp (Batts)
SERVICES
We install insulation throughout the home: ✓ Attic Insulation ✓ Walls Insulation ✓ Basement Insulation ✓ Crawlspace Insulation ✓ Garage Insulation ✓ Floors Insulation
BRANDS
We offer high performance, brand name insulation backed by third party warranties. Our certified installers are professionally trained to install all types of insulation.
SPECIALITIES
Spray Foam Insulation, Blown Fibre Insulation, Air Barriers, Old Insulation Removal, Air Sealing & Draft Proofing, Fire Protection, Batts & Vapour Barriers, Specialty Coatings, Soundproofing, Thermal Barrier, Under Slab Insulation.
WEBSITE
https://www.gni.ca/
YEAR ESTABLISHED
1980
NUMBER OF EMPLOYEES
300
LIABILITY INSURANCE
Yes
WORKERS COMPENSATION
Yes
WRITTEN CONTRACT
Yes
WARRANTY TERMS
https://www.gni.ca/about/service-commitment-great-northern-insulation
Company profile information is not moderated by HomeStars. Ask the contractor to verify before hiring.