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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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Gary Bouliane from Port Rowan
Gary Bouliane from Port Rowan
1 review Port Rowan, ON
8/10

Garage 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.

The young fellows were very polite & cleaned up afterwards . They worked hard and neat and did the job we requested . So far we couldn't be happier . Thanks & we have already recommended you to a few neighbors that had asked about your work .

Approximate cost of services:
$1,300.00
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Company Response

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

Sean Gorman in North York
Sean Gorman in North York
5 reviews Toronto, ON
10/10

Insulation

Davis was great. He was clear in explaining what he saw and what needed to be done. His advice led us to making real efforts to fix up our entire attic. It is now healthy. He matched the price of another company, but we would have used Great Northern anyway, as they were so thorough. Davis noticed a tiny bit of mold. Due to our tight schedule, the folks at Great Northern Insulation coordinated with the mold people so that everything could be done the same day. The insulation is a definite advantage to the house. The upstairs of the house no longer smells like the attic. The air conditioner seems to be working better.

The installers were friendly, helpful, and professional. They arrived on time and worked efficiently.

We would use Great Northern Insulation again without any question.

Approximate cost of services:
$2,260.00
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Company Response

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

Greg Ladd from Saint Thomas
Greg Ladd from Saint Thomas
1 review Saint Thomas, ON
10/10

BASF 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.

The crew members that came to the house were great. They were knowledgeable and did a neat clean job with no over-spray when they applied the foam. I had a couple neighbours over afterward to look at their work and they were pretty impressed. I would definitely give Great Northern a referral for anyone that needs this work done.

Approximate cost of services:
$800.00
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Company Response

Hi Greg, Thank you very much for your thoughtful review. We are glad you are so happy with our crew’s work! We’ll be sure to pass along your note to our team.
The team at Great Northern Insulation

Don Edmondson
Don Edmondson
5 reviews Mississauga, ON
10/10

BASF 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.

We recently had a job completed for one of our customers and the job was done to Perfection as always!!! Thank you Great Northern Insulation you are the best at what you do!!!!

Approximate cost of services:
$3,000.00
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Bonnie Morrison  from Minden
Bonnie Morrison from Minden
1 review Haliburton, ON
8/10

Thermal Barrier

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 crew did a great job both times they were out. Want to say thank you to Kelly and everybody who’s been gracious to come and help us. Great service we really appreciate it.

Thank you

Approximate cost of services:
$1,130.00
1 of 1 people found this review helpful.
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Company Response

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

Donna Powell from Woodstock
Donna Powell from Woodstock
1 review Woodstock, ON
10/10

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 had an excellent experience with Great Northern Insulation. The sales representative gave us the information we were looking for and a price that we were comfortable with. We had to delay our installation twice and this was no problem with your company. The installers arrived right on time, were easy to deal with, explained each process and cleaned our garage when they were finished. We would definitely recommend Great Northern Insulation.

Approximate cost of services:
$875.00
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Company Response

Hi there Donna,
Thank you very much for your thoughtful review. We are glad you are so happy with our crew’s work! We’ll be sure to pass along your note to our team.
The team at Great Northern Insulation

Dave - Barrie Ontario
Dave - Barrie Ontario
4 reviews Barrie, ON
10/10

Crawlspace

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 just wanted to thank you for the excellent job done by your Barrie office. Installing blanket insulation on my crawl space walls is probably a small job for you but the team of Derek and Nick approached it the same as they would a whole house job. They meticulously taped all the insulation in the rim joist cavities and I am sure this will improve the comfort level this winter. Thanks again for a very professional job.

Approximate cost of services:
$1.00
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Company Response

Hi Dave,
Thank you very much for taking the time to write us a review, we really appreciate it. We’re glad you’ve enjoyed our services!
The team at Great Northern Insulation

Hiral Pandya from West Hill
Hiral Pandya from West Hill
1 review Toronto, ON
10/10

Attic Top Up

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 service, the staff are efficient, very courteous. the crew did a job well done. Thank you and look forward to working with you again

Approximate cost of services:
$700.00
1 of 1 people found this review helpful.
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Company Response

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

Bob Kergan from Hamilton
Bob Kergan from Hamilton
1 review Hamilton, ON
10/10

Exterior 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 have had a very good experience with Great Northern they were early at the job site, the workmen set up and taped completely prior to spraying. Cleanup was complete they knew how to do a good job. Thank you.

Approximate cost of services:
$1,000.00
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Company Response

Thank you very much Bob 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

Adam Eddy from Woodstock
Adam Eddy from Woodstock
1 review Woodstock, ON
10/10

Drive Shed

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.

Things went well with the part 1 of the insulation of our shop. The guys took the care to cover the floor as they went as well as tape over the windows.
Originally, matt was helpful to recommend the best approach when he did the initial site quote.
Thanks

Approximate cost of services:
$3,780.00
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Company Response

Hi Adam,
Thank you for your awesome review for our services. We glad we could help make your home as comfortable as possible.
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.