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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 Campbellford, ON
10/10

Crawlspace Insulation

GREAT SERVICE TO INSULATE THE CRAWLSPACE WITH SPRAYFOAM IN OUR COTTAGE AS THE LOWER FLOOR WAS VERY COLD. PROMPT, EFFICIENT SERVICE AT A DECENT PRICE. LOWER FLOOR MUCH WARMER NOW. WOULD RECOMMEND THIS COMPANY TO ANYONE. YOU WON'T BE DISAPPOINTED.

Approximate cost of services:
$3,000.00
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Company Response

Thank you so much for such a fantastic review! We are so thrilled to hear that everything went smoothly and up to your standards. Also, that you are already seeing a difference in your cottage! Please do not hesitate to contact us if you have any other projects for us. Thank you so much for choosing Great Northern Insulation!

es from Sunderland
es from Sunderland
3 reviews Sunderland, ON
9/10

Basement insulation

Initial contact was informative. Workers came as promised and did the job as required. Probably the cleanest jobsite after completing the job I have ever seen. Inspector even said it was well done.

Thanks

Approximate cost of services:
$2,500.00
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Company Response

Thank you so much for your kind words and taking the time to write a review

We never get tired of hearing from our satisfied clients and hope you will tell your friends and family about your experience.

Thanks again

Ruth in Belle River
Ruth in Belle River
1 review Essex County, ON
10/10

Insulating attic

Matt and John were our insulators. Very professional and went above and beyond our expectations. The guys answered our questions and it was nice to know that the job was done properly and efficiently . Kudos to these two workers. Customer service comes naturally to these two . Thanks for an awesome job!

Approximate cost of services:
$0.00
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Company Response

Thank you Ruth for your compliment, hope we can do business with you again

Rob Smith from Belmont
Rob Smith from Belmont
1 review Belmont, ON
8/10

R50 Loosefill to Attic

Assisted Review

An assisted review is collected by a contractor on behalf of the homeowner after their work is completed. The homeowner must confirm the text of the review and may make any changes she or he deems appropriate. The homeowner then assigns the contractor a review score out of 10. Assisted reviews receive the same scrutiny as other reviews and must follow our review guidelines.

Everything was great from the initial interaction with David through to follow up communications and the installation. The team that arrived for the installation that morning were very professional and ensured that we were happy with their work. We are happy with everything that was completed.

Thanks!

Approximate cost of services:
$1,400.00
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Company Response

Thank you so much for the great review, Rob! I am so thrilled to hear that you are so happy with the job that we had completed for you! Here at GNI, we like to make sure that everything is done in a timely manner - start to finish. Thank you so much for choosing Great Northern Insulation!

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

Garage & House Attic

Assisted Review

An assisted review is collected by a contractor on behalf of the homeowner after their work is completed. The homeowner must confirm the text of the review and may make any changes she or he deems appropriate. The homeowner then assigns the contractor a review score out of 10. Assisted reviews receive the same scrutiny as other reviews and must follow our review guidelines.

We were happy with the entire process ....Dave was professional and knowledgeable and although we were planning on insulating a specific area, Dave noted that we needed to top up existing insulation to meet code requirements which we appreciated... the installers were on time, efficient, thorough and personable..... Thank you for your service!

Approximate cost of services:
$1,500.00
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Company Response

Thank you so much for the great review! I am so thrilled to hear that you were so pleased with the job that we had completed for you. Here at GNI, we want to make sure that every customer is taken care of and that we will suggest what we think would be best for them. Thank you so much for choosing Great Northern Insulation!

Robert
Robert
6 reviews Mississauga, ON
10/10

Attic insullation top up

From start to finish the job was professionally completed and has made an instant difference in comfort for our second floor. We had issues where we had cold rooms in the house and after having the attic inspected, it seems that we had anywhere from an R22 to R30 of insulation in the attic. After the job was completed by GNI, we are now around 65R. The temperature in the second floor in our house now seems even and does not fluctuate from room to room.

The job was professionally quoted and completed in a clean timely manner that most companies don't seem to follow any more. I would highly recommend this company for any insulation needs!

Approximate cost of services:
$1,400.00
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Company Response

Thank you for your compliment, hope we can do business with you again

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

Attic Top Up to R60

Assisted Review

An assisted review is collected by a contractor on behalf of the homeowner after their work is completed. The homeowner must confirm the text of the review and may make any changes she or he deems appropriate. The homeowner then assigns the contractor a review score out of 10. Assisted reviews receive the same scrutiny as other reviews and must follow our review guidelines.

The only two concerns with the complete process were the initial installation date being delayed due to your truck breaking down and the fact that on the revised installation date the wrong type of insulation was delivered and a slight delay resulted.

Aaron was very thorough and represented your company very well.
Your two installers work ethic. ability to answer our questions and professionalism was off the charts. Those two guys were an absolute pleasure and did a very thorough job.
Overall we were most satisfied

Approximate cost of services:
$0.00
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Company Response

Thank you so much for such a great review! I am so thrilled to hear that everything worked out in the end. Unfortunately, there are some things that are out of our control - such as a truck break down. But I am glad that everything had worked out to your timeline in the end! Please think of us if you have any other insulation needs. Thank you so much for choosing Great Northern Insulation!

Margaret Whiting from Port Dover
Margaret Whiting from Port Dover
1 review Port Dover, ON
10/10

Spray Foa, Basement

Assisted Review

An assisted review is collected by a contractor on behalf of the homeowner after their work is completed. The homeowner must confirm the text of the review and may make any changes she or he deems appropriate. The homeowner then assigns the contractor a review score out of 10. Assisted reviews receive the same scrutiny as other reviews and must follow our review guidelines.

I found your rep. David very informative and the boys who did the insulating extremely nice and efficient. I will definitely recommend your business to anyone needing your services. It was a pleasure doing business with you.

Approximate cost of services:
$1,000.00
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Company Response

Thank you so much for such a great review, Margaret! We are so thrilled to see that everything met your standards. Here at GNI, we like to make sure that everything is efficient as possible - start to finish. I am also happy that you got to witness that first hand! Thank you so much for choosing Great Northern Insulation!

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

Garage Walls & Ceiling

Assisted Review

An assisted review is collected by a contractor on behalf of the homeowner after their work is completed. The homeowner must confirm the text of the review and may make any changes she or he deems appropriate. The homeowner then assigns the contractor a review score out of 10. Assisted reviews receive the same scrutiny as other reviews and must follow our review guidelines.

Overall good, the installing crew was behind schedule that day and I had to call to figure out how far behind, but once they arrived they were faster than the estimate. They very much had the mindset they were there to work, and little things were not an issue. Still waiting to figure out the full expect of the change of the insulation though.
Alana the sales rep was fine to work with.The installers a bit of a mess, they didn't know what all they were walking into based on the quote information provided to them.
The installers were professional and knowledgeable The cleanup was done well, there was very minimal (if any) side spray to deal with. They gave us a few options on a couple of the spots.
Still waiting a bit to see the full effect, but so far yes the install was done quickly and cleanly (once they arrived), and the cost was not outrageous.

Approximate cost of services:
$1,500.00
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Company Response

Thank you so much for the great review! We are so thrilled to hear that everything had worked out! Here a GNI, we like to make sure that every job is done as efficiently as possible. Thank you so much for choosing Great Northern Insulation!

Joseph Abela from Cambridge
Joseph Abela from Cambridge
1 review Cambridge, ON
10/10

Main/ 2nd Floor Spray Foam

Assisted Review

An assisted review is collected by a contractor on behalf of the homeowner after their work is completed. The homeowner must confirm the text of the review and may make any changes she or he deems appropriate. The homeowner then assigns the contractor a review score out of 10. Assisted reviews receive the same scrutiny as other reviews and must follow our review guidelines.

My experience with Great Northern Insulation was enjoyable from start to finish. The sales rep was on time and very informative. The team quickly provided a quote, received my deposit and set-up an install date that worked with our tight schedule. We had our home spray foamed in areas where we were renovating and the install team did a great job. The worksite was left clean and the work was completed on time as requested. Overall it was a great experience and we plan on using Great Northern Insulation again for our future renovation.

Thank you for a wonderful experience.

Approximate cost of services:
$1,600.00
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Company Response

Thank you so much for the great review, Joseph! We are so happy to hear that everything worked out with your schedule. Here at GNI, we like to make sure that the whole process is as smooth as possible - start to finish! Thank you so much for choosing Great Northern Insulation! Please do not hesitate to contact us if any other projects come up!

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.