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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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Rob in Owen Sound
Rob in Owen Sound
1 review Owen Sound, ON
8/10

Spay Foam Insulation

Clayton and Chance did a great job. Made sure everything was setup properly and did an excellent clean up. Prior to leaving the site they requested an inspection by site supervisor to make sure the job was satisfactory.

Approximate cost of services:
$2,000.00
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Company Response

Thank you so much for taking the time to leave a review. We never get tired of hearing from our satisfied clients. We will pass on your good word to the crew members and the GNI Team.
Thanks again

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

Insulation on addition

It was a very positive experience, from the sales to the installation. Jake and his team mate were efficient and very professional, had to walk through our house to get to the second floor. Very minimal mess.

Approximate cost of services:
$1,500.00
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Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team We never get tired of hearing from our satisfied clients. Thanks again

Andrea in Hamilton
Andrea in Hamilton
1 review Hamilton, ON
10/10

Retro drill and fill

Very happy with the job Dan and Mike did. We have a 120 year old house making the process very slow and on the hottest days of spring making it a miserable procedure, never the less, they were were thorough, pleasant and professional. What a difference in the cooling in our house immediately following the completed installation. I highly recommend Great Northern Insulation because you have the peace of mind that the job will be done right.

Approximate cost of services:
$2,420.46
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Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team We never get tired of hearing from our satisfied clients. Thanks again

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

Attic

I was very pleased with the 3 men.
On time,courteous and efficient as well as knowledgeable about product.
I would certainly recommend this company.
I found the price very reasonable for the work done.
Thank you!

Approximate cost of services:
$940.00
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Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team We never get tired of hearing from our satisfied clients. Thanks again

Jim & Jenny from Selkirk
Jim & Jenny from Selkirk
2 reviews Selkirk, ON
10/10

Attic Insulation upgrade

Once again we were pleased to use the services of Great Northern. The response to our request for service & quote, was timely and fair. The staff sent to do the install were polite and professional and did the job exactly as we expected and even beyond. These guys needed to access our attic space from a second story walk up pulling up hoses and equipment. What a job!
We have used their company on several of our properties over the years and will continue to do so.

Approximate cost of services:
$800.00
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Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team We never get tired of hearing from our satisfied clients. Thanks again

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

insulated my home

free through union gas, was done in just over a day, great guys and experience! they cleaned up afterwards and there was no mess. very impressed with the professionalism, I'm elderly and they made me feel at ease and helped me take things off my walls and put stuff back

Approximate cost of services:
$0.00
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Company Response

Thank you so much for your kind words! We are so thrilled to see that you are so happy with the job that we completed for you. We like to make sure that we put the home back to just the way we found it! Thank you so much for choosing Great Northern Insulation!

fred gillespie in Toronto
fred gillespie in Toronto
2 reviews Oshawa, ON
10/10

basement storage room

YOUR EMPLOYEES WORKED WELL AS A TEAM. THEY WERE CLEAN EFFICIENT PROFESSIONAL POLITE ARRIVED ON TIME.COMPETENT. PLEASANT THEY EXCEEDED MY EXPECTATIONS I WOULD NOT HESITATE TO RECOMMEND THEM TO OTHER HOME OWNERS IN OSHAWA.

Approximate cost of services:
$1,200.00
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Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team

We never get tired of hearing from our satisfied clients.
Thanks again

Private User
Private User
Private User reviews Saint Marys, ON
10/10

thorough and courtious

Showed up on time asked questions were polite , cleaned up after they were finished. We noticed the difference almost immediately. Sales staff told us about the program with union gas and we plan to utilize the program to the max.

Approximate cost of services:
$4.00
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Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team

We never get tired of hearing from our satisfied clients.
Thanks again

Kathryn in Vittoria
Kathryn in Vittoria
1 review Simcoe, ON
10/10

Kitchen renovation

Kevin and Dave arrived at our house on schedule and they were both courteous and professional in carrying out their duties. We were very happy with the insulation of the walls and ceiling of our kitchen - a one-story room. We can already notice the difference in temperature and noise from outside.

Approximate cost of services:
$2,800.00
Was this review helpful?
Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team

We never get tired of hearing from our satisfied clients.
Thanks again

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.