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Insulation
Great Northern Insulation
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93%

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Reviews for Great Northern Insulation

Average customer rating:
9.5 10 (926 reviews)

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ppientka3560
ppientka3560
2 reviews Brampton, ON
10/10

Attic insulation topped up, vents installed and locking mechanism attached to attic hatch

Following an energy audit to upgrade my 35 yr old home, I contacted Great Northern and was treated with utmost respect and care. The job was completed in a timely fashion by people who arrived on time, explained what they did and cleaned up after themselves. A wonderful experience all the way around-I wouldn't hesitate to recommend them!

Approximate cost of services:
$1,600.00
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Company Response

We are so happy to hear that you had such a pleasant experience! Thank you for choosing Great Northern Insulation!

Lynne in Brampton
Lynne in Brampton
1 review Brampton, ON
10/10

Insulation for attic

Fabulous from start to finish. Professional and courteous and did exactly what I needed. I had both spray insulation and blow in put into my attic, each for different reasons. 2 visits with 2 crews. Everyone was punctual, professional and capable and in construction that's a tough thing to find. Price was reasonable and for spray in, I'd deal with no one else. It's important to have TRAINED crews doing the work.

Approximate cost of services:
$2,200.00
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Company Response

Hi Lynne

Thank you so much for your kind words. I will definitely let them know right away. I am sure they will appreciate your feedback!
Thanks again for choosing Great Northern Insulation.

Rhonda in London
Rhonda in London
1 review London, ON
10/10

Attic Insulation

After two unprofessional quotes I was delighted with Alana Cooper's initial appraisal and her written proposal. Tom and Brian J workmanship as well as Marilyn in the office's customer service was impressive. RSinger

Approximate cost of services:
$1,500.00
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Company Response

Thank you Rhonda for your review.
I will pass your compliment on to everyone involve, we love seeing feedback from our customers. Fell free to tell you friends and family about the experience you had with us.

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

workshop insulation

my workshop needed insulation in hard to reach places and I was happy to find people who were hard working and committed to the task at hand. They worked through intense heat and a plague of mosquitos and did a great job!!! THANKS.

Approximate cost of services:
$1,800.00
What could this company do to improve their services?
Any advice to offer fellow homeowners facing a similar project?
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Company Response

Thank you for the wonderful review.
We appreciate your positive feedback about our company. We do take pride in catering to our customers needs the best way we can, even if it is working through a plague of mosquitoes or in hard to reach places.
Thanks again for choosing Great Northern Insulation.

James in Toronto
James in Toronto
2 reviews Aurora, ON
10/10

Spray foam insulation in basement

1400 square foot basement and the team was done inside a day. Clean, professional and safe - we would recommend GNI to anyone. From the initial quote all the way through to the job being completed, GNI did a fantastic job.

Approximate cost of services:
$4,000.00
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Company Response

Hey James
We are glad to hear that your job went smoothly and we were able to meet / exceed your expectation.
Feel free to let us know if you have any more question, or if there is anything further we can do for you

Robert in Toronto
Robert in Toronto
1 review Midland, ON
8/10

Spray foam insulation in basement

Very impressed with the service provided, they showed up on time, completed on time and team cleaned up before they left.

Our project was a secondary suite in the basement of our rental property. I would use Great Northern Insulation for all my other insulation needs.

Approximate cost of services:
$2,850.00
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Company Response

Thanks so much for your kind words. We very much appreciated your business and are just as happy to hear you were satisfied with the work our‎ crew completed at your home.
Your compliments will be put into there files and will be beneficial for them during yearly reviews.

全 in Boston
全 in Boston
1 review Guelph, ON
10/10

attic insulation and ventilation

Clear communication and good service. GNI just renovated our attic insulation and updated washroom ventilation system through the attic. The staff and professional technicians are very friendly. The site working efficiency is satisfactory. Basically, I think the offered price is reasonable. Overall, GNI insulation service is cost-effective.

Approximate cost of services:
$1,400.00
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Company Response

Thank you for the wonderful review! We are very happy to hear about your positive experience. We will ensure that our team members receive this feedback. Thank you so much for choosing Great Northern Insulation.

@charlestam
@charlestam
8 reviews Aurora, ON
10/10

Professional Basement Work

We brought in Great Northern Insulation based on a recommendation by Sonoma Contracting Ltd. as part of a bigger basement renovation project. The guys were timely, professional, careful, attentive and respectful. They knew their stuff, ensured that all safety requirements are met, had full PPE and were clearly very experienced. Our basement went from bare to purple in a day. They took their time to ensure that the application was done correctly. Highly recommended, A+.

Approximate cost of services:
$6,000.00
What could this company do to improve their services?
Any advice to offer fellow homeowners facing a similar project?
1 of 1 people found this review helpful.
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Company Response

Hi Charles
Thank you for attaching photos of the job we completed in your basement. We know you'll enjoy it for many years to come. Please let us know if there is anything else we can do for you. Thank you for choosing Great Northern Insulation.

Alexis in Burlington
Alexis in Burlington
2 reviews Oakville, ON
10/10

Whole house Insulation

Great service , great crew. Clean, courteous , terrific job. I did a lot of research prior to using GNI. There are a lot of fly by night operators out there be careful! Do yourself a favour and just call GNI for all your insulation needs....

Approximate cost of services:
$31.00
What could this company do to improve their services?
Any advice to offer fellow homeowners facing a similar project?
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Company Response

Hi Alexis
WOW thank you for the wonderful review! We are so happy to hear that you had such a pleasant experience with our company. Don't forget to refer us to your friends and family.
Thanks again for choosing Great Northern Insulation.

ngdunn in Severn Bridge
ngdunn in Severn Bridge
1 review Severn Bridge, ON
10/10

garage attic

Great response and service. I couldn't have been more pleased.
The staff were all courteous and helpful and did a magnificent job overall. I would certainly recommend Great Northern Insulation
to my neighbors and friends

Approximate cost of services:
$2,500.00
What could this company do to improve their services?
Any advice to offer fellow homeowners facing a similar project?
Was this review helpful?
Company Response

We are glad to hear that your job went smoothly and we were able to meet / exceed your expectation.
Thank you 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
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