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.

93%

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

timothy in Peterborough
timothy in Peterborough
1 review Peterborough, ON
10/10

Basement insulation

January 17th started off terrible with the rain BUt the crew showed up ready and started work right away. Finished in a timely manner, answered any questions I had and when job was done cleaned up and did final walk through to ensure all was left as it was found. Awesome work guys!!!

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

Thank you so much for your fantastic review, Timothy! We are so pleased to hear that everything had worked out in the end. Sometimes, the elements will be against us but we will do everything in our power to make sure that the job gets done! I am so glad to hear that you got to see first hand how great our crew actually is. Thank you so much for choosing Great North Insulation!

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

attic insulation

i had a great experience from the start with eric who quoted my job. when the crew showed up they were hours earlier than i was expecting. the first time around things did not go so well in the attic. i understand it was a tough job as my attic was different from most. the crew although was very polite and cleaned up very well, i was not 100% satisfied with the work that had be done. i voiced my opinion and even though it was over the holiday break i heard back immediately from a employee who was on his holidays. we set up a date for a crew to come back and fix any mistakes i thought needed attention, this was all without question. very easy to deal with and a classic case of the customer is always right which does not occur often anymore. the second crew back lead by matt showed me everything he will be doing step by step. he had me up before and after to make sure i was 100% satisfied with the work. matt was extremely knowledgeable, polite and hardworking. sometimes mistakes happen with work and i understand that completely, i was extremely happy with how the company handled the issue and even though we were off to a rough start i would not hesitate to use them again.

Approximate cost of services:
$1,400.00
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

Thank you so much for your excellent review! I am really happy that everything had worked out in the end. Unfortunately, we are human and are bound to make mistakes but we will make sure that we can fix those mistakes as soon as possible! I am so happy that you got to see first hand how we make sure that we are 100% accountable for our actions. Thank you so much for choosing Great Northern Insulation!

Munro Fraser in Erin
Munro Fraser in Erin
1 review Saint George, ON
9/10

Sound Proofing

We had a wonderful experience with Corey, Deon & Eric from truck 115. They were most professional and cleaned the area so well when they completed the install. We have another project coming up in the spring and won't hesitate to use GNI again.

Approximate cost of services:
$2,500.00
Was this review helpful?
Company Response

Thank you so much for the excellent review, Munro! We really do have the best team around and I am so happy that you got to see that first hand! Thank you so much for using Great Northern Insulation. We can't wait to hear from you when you are ready for the next project.

Bonnie in San Francisco
Bonnie in San Francisco
1 review Port Hope, ON
10/10

Basement wrap, blown in insulation in attic and walls

Through an incredible opportunity through Union Gas I was set up with Great Northern Insulation. All around an excellent experience. From the customer service provided by the owner Jason and his great employees (Bob, Austin and Matt) from start to finish I as so impressed. Very friendly, helpful and professional. I would, without hesitation recommend this company to friends and family! Thank you very much!!

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

Hello there, Bonnie! Thank you so much for your great review! We are so pleased that you were able to see our customer service first hand. The guys that we have here really are the greatest! Thank you for choosing Great Northern Insulation!

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

Basement + Attic Insulation

Derek and Alex arrived right on time and were very courteous.

Ahead of the date of their work, we had had cleared away all the areas where we knew they would be working.

They were steady in their work and cleaned up after themselves.

We can feel the difference in the house already ! The furnace turns on less often than last winter, with similar temps. outside !

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

Thank you so much for the great review! We are so please that you are already seeing a difference in the house already! I hope you can also see a difference in your savings as well! Thank you for choosing Great Northern Insulation!

Private User
Private User
Private User reviews Whitby, ON
10/10

Crawl Space

The team came out promptly and provided a detailed estimate, we booked it, also put us on a cancellation list. Got the job done weeks early and the team was extremely courteous and professional. They will be back for phase 2 of the renovations.

Approximate cost of services:
$1,900.00
Was this review helpful?
Company Response

Hi there! Thank you so much for your amazing review! We are so thrilled to hear that you had such a pleasant experience with our crew guys. Thank you so much for choosing Great Northern Insulation. Hope to hear from you soon!

Doug in Milton
Doug in Milton
1 review Milton, ON
10/10

Attic Insulation

I was very satisfied with the friendly service I received from Scott and Connor the two installers that topped up my attic with insulation. It was especially appreciated that they helped to educate me on insulation as they got ready. They were very tidy in the process and after they left there was no mess what so ever.

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

Thank you for much for you great review, Doug! The GNI crew members are truly the best! I am so happy to hear that they did a good job and cleaned up after themselves! Can't say that about too many people. Please think of Great Northern Insulation for any other insulation needs you may have!

Ed in Windsor
Ed in Windsor
1 review Windsor, ON
10/10

Basement foam insulation

Shawn P. and Jeff V. did an excellent and thorough job of my insulation. Everywhere, they paid close attention to detail, not missing a single spot. They were a pleasure to deal with. They explained the process very well and paid attention to details I requested.

Approximate cost of services:
$2,275.00
Was this review helpful?
Company Response

Hello there, Ed! Thank you so much for the excellent review. Here at Great Northern Insulation, we pride ourselves on making sure the job is done right, down to the itty-bitty details! We are so pleased that you are happy with the crew and work! We hope you enjoy your warm home for many seasons to come!

M Chang in North york
M Chang in North york
3 reviews Toronto, ON
10/10

Attic Insulation

Excellent service, response and professional. We had a fire and wanted the insulation in our attic to be inspected. GNI responded quickly and answered all our questions. Peter, the inspector was available by both by phone and email during non business hours. Office staff was also immediately available and helpful. During the job, the workers called me while at work to answer further questions and made sure everything was done to my satisfaction. Thank you GNI.

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

Hi there! I am so pleased to hear that everything went smoothly with the insulation. At GNI, we pride ourselves to make sure we can help the customer to the best of our ability. Whether it be with the office or the crew on the job. We hope that you notice a difference in your home and in your heating bill for the next couple of weeks! Thank you for choosing GNI!

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

Attic insulation and sloped roof crawl space insulation

Excellent service. Mike quoted the job and was very helpful and knowledgable. I was not here when the work was done but both times, workers did a great job of cleaning up after themselves.
Only complaint was a payment issue. They charged my credit card a second time several weeks after the job was done. Accounts payable error which was fixed the day I noticed the error.

Approximate cost of services:
$2,800.00
Was this review helpful?
Company Response

Hi there! Thank you for the great review! We apologize for the error in our accounting department. But I am glad to hear that everything was taken care of right away.

I hope that you notice the difference in your home, especially in the next few weeks!

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.