Great Northern Insulation

Home Inspection
ON
Write a Review
Write a Review
Website
HomeStars
Home Inspection
Great Northern Insulation
Star Score
StarScore uses a complex algorithm which considers a company’s review ratings, responsiveness, reputation, and recency. Learn more.

94%

This is the average rating based on homeowner reviews.
This indicates how long it's been since the last review.
Low reputation means there has been review tampering or a company request to remove a review. This score is also impacted when we do not have enough information i.e: low number of reviews.
How well a company responds to Service Requests and Reviews.
Reviews by rating (past 12 months)
Verified by HomeStars
Best of 2020 winner 9 timesBest of 2020winner 9 times
Giving Back Award winnerGiving Back Awardwinner

Reviews for Great Northern Insulation

Average customer rating:
9.5 10 (865 reviews)

Sort by

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

Spray Foam Basement Walls

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 done perfectly. We are extremely happy with the installation crew, Mike and the others at Great Northern. I would recommend their work without hesitation.
Thank you for a job well done

Was this review helpful?
Company Response

Thank you for leaving us such a kind review, we truly appreciate your business and will pass on your thoughtful words to the other crew members.
Thanks again!
The team at Great Northern Insulation

Jim Barrowman from Gravenhurst
Jim Barrowman from Gravenhurst
1 review Gravenhurst, ON
10/10

Spray Foam Basement Walls

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.

Ian- Just a short note to thank you for your assistance in getting the work done so quickly. the two guys that showed up on Monday were very efficient and left nothing but the finished insulation (meaning they covered everything before spraying then cleaned it all up and left). i need to thank Kelly of the Gravenhurst office for following up to ensure everything was done to our satisfaction, and it was. we couldn't be happier.

Was this review helpful?
Company Response

Hello There Jim,
Thank you very much for choosing the team at Great Northern Insulation, and for taking the time to leave us such a great review. We are very grateful for your business.
The team at Great Northern Insulation

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

Spray Foam 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 had expected the installers to arrive between 7:30 and 8:00 am and learned when I called the office that I was scheduled for 10:00am. Otherwise, my experience with the company has been excellent. The scheduling issue wasn’t a problem for me but could be for others.

The installers for both the foam and batting insulation jobs were punctual, knowledgeable and courteous. Response time to invoicing inquiries has been prompt. I would definitely recommend your company to others.

Was this review helpful?
Company Response

Thank you very much for your feedback. We truly appreciate your business.
The team at Great Northern Insulation

Jeff from Creemore
Jeff from Creemore
1 review Creemore, ON
10/10

Fiberglass Batts to Main Floor

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 completely satisfied with our interactions with GNI.

The original assessment was handled quite efficiently by the Sales Rep., all our questions and concerns were dealt with. The appt. was set to our needs.

The service team arrived a little early and were very efficient. They advised of all the steps they would take and the entire activity went off without a hitch. They provided all information required and requested.

They also took the time to clean up after the installation and ensured we had no further questions or concerns.

A very seamless process for us.

Thanks to all involved for making this a positive experience and we will certainly recommend your company to any who ask our opinion.

Was this review helpful?
Company Response

Thank you for leaving us such a kind review Jeff, we truly appreciate your business and will pass on your thoughtful words to the other crew members.
Thanks again!
The team at Great Northern Insulation

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

Spray Foam Garage Walls

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 am very satisfied with the job great northern did insulating my garage. They were super friendly and very efficient. Although they were a bit late after another job they did a great job. Will definitely use you again and pass on a reference.

Was this review helpful?
Company Response

Thank you very much for choosing the team at Great Northern Insulation, and for taking the time to leave us such a great review. We are very grateful for your business.
The team at Great Northern Insulation

Melanie in Ajax
Melanie in Ajax
4 reviews Ajax, ON
10/10

insulation for a century home

Best decision ever to use this company! Initially I was concerned about the cost, but the product and the company were a perfect fit for what needed to be done. Dan and Nick were efficient, professional and their work ethic was really applaudeable. The insulation itself has caused my house to be warm even without the furnace running . I was fortunate that I was able to find a way to cover cost, but what I know now would have me find a way no matter what to use the spray foam. Thanks Dan and Nick!

Was this review helpful?
Company Response

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

Trevor P in Scarborough
Trevor P in Scarborough
4 reviews Toronto, ON
8/10

attic insulation

GNI did everything they said they would. They were on time, prompt, courteous, and professional. Overall, they met my expectations in every category. I would and may use them again in the future.

Was this review helpful?
Company Response

We have seen your compliment and would like to say thank you for your business

PTeno
PTeno
2 reviews Toronto, ON
10/10

Front Room Floor

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 job was very good, as a project manager in the construction industry, I felt it was very smooth from start to end. Davis was knowledgable and available to chat about changes we wanted. The installers were top notch and took great care to protect the place. The only concern, which isn’t really a concern is that there were a few staples left around the door and I caught my clothes on them and cut my finger, they were work clothes and I’m used to getting scraps.

Great job. We will be calling you to work out a schedule for the next reno in the new year, 4 times the size of this small one.

Was this review helpful?
Company Response

Hi PTeno,
Thank you for your 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!
The team at Great Northern Insulation

Tom Phibbs from Hagersville
Tom Phibbs from Hagersville
1 review Hagersville, ON
10/10

Garage

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 very satisfied. They came and measured up at the time they quoted us and were back in touch very quickly. The insulator fellows came at the time they said, they covered up the windows and doors, they worked well together and no one was at one another, they cleaned up after themselves and put it in the garbage container, and the fellows that blew were great and they did it fast and thorough and were gone before noon. My husband gave them the cheque and they left.
My husband went and got the board and they are putting that on the walls today.
This is my early Christmas gift to myself as we have 25 immediate family so it is too many for one table and so the garage is going to be another room for entertaining as well as putting a vehicle in when not needed.
Thank you very much for taking one payment.
We will recommend you as we did before.
We wish you and the people of Great Northern a very Merry Christmas and a Happy New Year.

Was this review helpful?
Company Response

Thank you Tom for leaving us such a kind and thorough review. We will make sure to pass on the message to our crew members! We are very grateful for your business and are happy that you are living comfortably.
The team at Great Northern Insulation

Private User
Private User
Private User reviews Hamilton, ON
8/10

Garage Common Wall

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 install went well, the guys were good. Did find two leaks, and a gash in my dryer vent pipe, nothing worth sending anyone back to fix.

I will be calling you guys again once I'm in a position to rip out some walls in the basement - probably by the fall of 2016.

Was this review helpful?
Company Response

Thank you for leaving us such a kind review, we truly appreciate your business.
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.