Write a Review


HomeStars
Insulation
Great Northern Insulation
Star Score
Learn more about how StarScore uses a complex algorithm which considers a company's review ratings, responsiveness, reputation, and recency.

94%

This is the average rating based on homeowner reviews.
This indicates how long it's been since the last review.
Indicates how well a pro reacts to reviews and review-related interactions with Homeowners.
How well a company responds to Service Requests and Reviews.
Reviews by rating (past 12 months)
Verified by HomeStars

Reviews for Great Northern Insulation

Average customer rating:
9.5 10 (926 reviews)

Sort by

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

Blown in insulation

Derek & John were early to the job, cleaned up after the job was completed & brought me up into the attic to show the work that they had done. We were very satisfied with their job.

Approximate cost of services:
$1,000.00
Was this review helpful?
Company Response

Thank you so much for the great review! We are so thrilled to hear that our team met your standards! Here at GNI, we like to make sure that the customer knows exactly what we are doing and that they are comfortable with it. Thank you so much for choosing Great Northern Insulation!

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

Attic insulation top up

Friendly guys coupled with excellent service. Very mindful of covering every surface, from door to hatch, and cleaned up after as well. They even took out the door mat and cleaned it. They even went beyond and added more insulation.

Highly recommended. And, it's not too often I offer such praise. It was a pleasure meeting them.

Approximate cost of services:
$0.00
Was this review helpful?
Company Response

Thank you so much for your great review! I am so thrilled to hear that everything had gone smoothly! We really do have the best crew around and I am so happy that you got to see it first hand! Thank you so much for choosing Great Northern Insulation

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

Insulation of house

Recently had Nick and Tyler work on my house, both were very kind and courteous. Did a very clean and efficient job. Nick explained what they were going to be doing and how it will improve my house, I really appreciate that your employee took the time to explain what they are doing and where they will be in my house. I would highly recommend this team and company for insulation. Cheers.

Approximate cost of services:
$0.00
Was this review helpful?
Company Response

Thank you so much for the fantastic review! We really do have the best team around and I am so happy that you got to see it first hand. Here at GNI, we like to make sure that the customer is fully aware of what we are doing. Thank you so much for choosing Great Northern Insulation!

Sandra in Belleville
Sandra in Belleville
1 review Belleville, ON
10/10

Insulation of house

I applied for the low-income home insulation program sponsored by Union Gas. It was really easy to do and everyone I came in touch with was extremely pleasant and helpful. Once I qualified they sent Great Northern Insulation here to do the work. Rob and Matt from the Port Perry, Ontario Durham Branch arrived yesterday and got right to work. They were extremely efficient, cheerful and informative. They insulated the back walls of the house and the attic. They even did a great job cleaning up after they were done. Over all this experience has been great! I would definitely recommend this company to anyone who needs insulation done. Especially if you can get Bob and Matt to do the work.

Sandy Fay
Belleville Ontario

Approximate cost of services:
$0.00
Was this review helpful?
Company Response

Thank you Sandy for the wonderful review.

Kevin Forhan in Grimsby
Kevin Forhan in Grimsby
1 review Hamilton, ON
10/10

Attic Insulated

They were on time very professional, and made sure everything was clean and tidy before they left. WELL DONE! I would definitely call them for any other work I need done.

Approximate cost of services:
$1,100.00
Was this review helpful?
Company Response

Hi there, Kevin! Thank you so much for the great review! We are so thrilled to hear that you were happy with the work. Please do not hesitate to give us a call if there is anything else we can do for you! Thank you for choosing Great Northern Insulation!

SCOTT in Leamington
SCOTT in Leamington
1 review Kingsville, ON
10/10

garage attic

Matt and Dan were on time they listened to my thoughts on the job and explained the process I know it is not rocket science nice to hear. After they cleaned any loose insulation . A nice couple of guys

Approximate cost of services:
$932.25
Was this review helpful?
Company Response

Thank you for the great review, Scott! We are so happy to hear that everything went smoothly and that everything was explained to you. We like to make sure that everyone is on the same page - even if it isn't rocket science! Thank you so much for choosing Great Northern Insulation!

Jay Jr
Jay Jr
8 reviews Halton Hills, ON
8/10

Garage Spray Foam Insulaton

We're quite happy with the service provided by this company. Our main bedroom and ensuite above the garage was quite cold during winter and we actually could feel air draft in our bedroom.

I took upon myself to remove the original garage insulation manually and during the process I found evidence of shoddy home construction. For example, we had an opening almost a metre long under our ensuite Jacuzzi, with just spray foam covering this hole, with nothing else holding it together.

Northern Insulation spray foam job improved our comfort level by 100% and the wind draft is totally gone. For the first time in 10 years we felt comfortable in our bedroom and ensuite during the winter time.

Northern Insulation installers were on time and left the place clean as they found it. The installers were courteous and explained to us what was being done.

We had a few issues: Electrical wire I had meticulously laid out was damaged during the excess spray foam removal. However they took responsibility for their mistake and acted to compensate me for it. So this should be a lesson for all of us installing spray foam: Make sure your wires are safely tucked inside wire conduits deep in the wall, otherwise they will get damaged when the installers shave the excess foam.

Northern Insulation installer also returned to our home a couple of times to take care of a small spot I thought could have been done a little bit better and another one which was missed.

I will be getting in touch with Northern when it is time to do our attic and basement insulation.

Thank you to Mike van Dijk for returning my emails promptly and not hesitating in making it right.

I think customers realistically don't expect perfection, however we expect contractors to take ownership and correct problems during installation and Northern has done just that.

Approximate cost of services:
$3,000.00
1 of 1 people found this review helpful.
Was this review helpful?
Company Response

Thank you so much for your fantastic review, Jay. I am so thrilled to hear that everything worked out in the end. We like to make sure that everything is covered right the first time - but we are only human. Thank you so much for letting us know the issue so we could resolve it right away for you! Like you had mentioned, it is hard to expect perfection, but you better believe that we are going to try to achieve it. Please do not hesitate to contact us when you are ready to move onto the next part of your home! Thank you for choosing Great Northern Insulation!

Great Northern Insulation in Fonthill
Great Northern Insulation in Fonthill
1 review Welland, ON
10/10

New house insulation

From sales to installation, it has been a very positive experience. They answered all of our questions, they were very efficient, very professional, job well done! Would recommend to all.

Approximate cost of services:
$11,800.00
Was this review helpful?
Company Response

Thank you for the wonderful review. Could we have your first and last name or address so the crew members who did the job gets recognition for a job well done?

Tami in Alfred
Tami in Alfred
1 review Woodstock, ON
10/10

Blown in insulation in attic

Great Northern performed this job with great professionalism and the two gentleman were very courteous. It was done in a timely manner and the sales rep was very helpful with all our questions. Well done! Thank you

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

Thank you so much for the review, Tami! We are so thrilled that you got to witness first hand the excellent team that we have at GNI. We always want to make sure that the customer is comfortable with the job and are able to answer all questions they may have. Thank you so much for choosing Great Northern Insulation!

Peter D from Pickering
Peter D from Pickering
3 reviews Pickering, ON
10/10

Attic insulation and air leakage problem

Sales rep was very professional and suggested several alternatives.
The work crew were pleasant, hard working and cleaned up after the job was complete. I would not hesitate to recommend them to others

Approximate cost of services:
$1,500.00
Was this review helpful?
Company Response

Hi there, Peter! Thank you so much for that excellent review. We are so happy to hear that you had such a pleasant experience with our crew. Here at GNI, we like to make sure that everything is taken care of to our customers standards - and we strive to meet that goal. Thank you so much for choosing 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.