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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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Private User
Private User
Private User reviews Belleville, ON
10/10

Very impressed!

Overall great service! The workers were very professional and answered our questions with clarity, did a great job with the insulation. We were very pleased with the results and would recommend to friends!

Approximate cost of services:
$16,000.00
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Company Response

Thank you so much for taking the time to leave a review.

We never get tired of hearing from our satisfied clients.
Thanks again

Cari in Barrie
Cari in Barrie
1 review Gravenhurst, ON
10/10

Spray foam in basement crawl space

An all round fantastic experience from start to finish! A very professional team that all had great work ethics and made the experience easy! Ian met us for the quote which was very reasonable and given in very timely manner. Kelly in the office was pleasant and accommodating working around our tenants schedule. Collin and Duncan the installers were punctual, friendly and clean. Worth the investment in the product and the company!

Approximate cost of services:
$1,000.00
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Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team

We never get tired of hearing from our satisfied clients.
Thanks again

Jake in Ancaster
Jake in Ancaster
1 review Hamilton, ON
10/10

Basement rubble wall insulation

My basement renovation was done thru the Union Gas weatherization program. I was contacted by your service rep. Randy, who came to my house to preview my basement and to tell me what would be done. I also have a crawlspace, which was not included in the program. I asked Randy what it would cost to do this area (I had insulated the walls), and he gave me a quote that I felt was more than reasonable, if I had it done at the same time as the rest of the basement. I agreed. On the Monday, Kevin & Dave and I discussed everything that would be done. They were very courteous and informative and I was very pleased with all aspects of the experience. Very professionally handled by everyone.

Approximate cost of services:
$200.00
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Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team

We never get tired of hearing from our satisfied clients.
Thanks again

dendrijverj in Toronto
dendrijverj in Toronto
1 review Lucan, ON
10/10

jeff and nick were very respectful and did a terrific job. thank you very much.

I met Jeff and Nick when they came to do insulation of my home. They were very respectful and did a fantastic job. Thank you so very much. Johanna and pets.

Approximate cost of services:
$10,000.00
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Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team

We never get tired of hearing from our satisfied clients.
Thanks again

Phyllis in Brighton
Phyllis in Brighton
1 review Kawartha Lakes, ON
10/10

Garage ceiling, second floor knee wall and attic area

We have a bedroom over the garage that is very cold in the winter.
Our contractor suggested we have closed cell insulating foam installed professionally. I did some research and contacted GNI for a quote. The staff were all very knowledgeable and professional. I was happy with the quote as well.
I am so happy I went with this company. Right from the start, the sales people were easy to talk to and explained everything. I was given choices based on what I needed. The outcome was excellent! and they made sure I was happy with everything right from the start to the end of the project.

Approximate cost of services:
$3,600.00
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Company Response

Thank you so much for taking the time to leave a review.

We never get tired of hearing from our satisfied clients.
Thanks again

Private User
Private User
Private User reviews Burlington, ON
10/10

Very happy and impressed Customer

Dionne and Scott have completed the insulation. Thanks for the quick response in getting this done.
Dionne and Scott arrived when you said they would be here, told me about measuring the R 50, showed us the completed job and swept the garage floor.
Very polite and courteous young men. Much thanks guys.

Approximate cost of services:
$1,500.00
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Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew members and the GNI Team

We never get tired of hearing from our satisfied clients.
Thanks again

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

Attic and basement cantilever

We had both the basement cantilever and attic done. The basement crew called (as asked) 20 minutes before arrival. Jake and Pete were excellent. Basement was cleaner after they left then before they arrived.
Shawn and Ross also called before they arrived to do the attics. They explained what would be done and how long it would take to complete.
Plastic was laid everywhere they went in the house.
Both crews invited me to see the work upon completion.
While I wont provide my pricing, I thought it was excellent.
I highly recommend GNI, from Matt providing timely quotes and Jason scheduling the work through to the crews doing the work.
Much appreciated!
Dave

Approximate cost of services:
$2,300.00
Was this review helpful?
Company Response

Thank you so much for taking the time to leave a review. we will pass on the good word to the crew memebers and the GNI Team

We never get tired of hearing from our satisfied clients.
Thanks again

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

Basement

We had our basement insulated it was done in a very professional way the guys were very cordial and helped us with all our questions they even swept when they left the house we are very happy and we would recommend your company to somebody else

L8m2x5

Approximate cost of services:
$2,000.00
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Company Response

Thank you so much for taking the time to leave a review

We never get tired of hearing from our satisfied clients.
Thanks again

Private User
Private User
Private User reviews Essex County, ON
10/10

Attic insulation

Quick. Professional. Accommodating. I have an older home with old fashioned "hatch" access to attic. Very concerned around access & potential mess. Matt & John were unconcerned. Knew exactly what they were doing & how to get the job done with ease. Impressive.

Approximate cost of services:
$1,000.00
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Company Response

Thank you so much for leaving a review. I will make sure Matt and John know how happy you were..

We never get tired of hearing from our satisfied clients.
Thanks again

Daniella30 in Woodbridge
Daniella30 in Woodbridge
1 review Vaughan, ON
10/10

Insulation

I recently used the services of GREAT NORTHERN INSULATION for my home, we are tearing a section of my house down and needed the insulation done by a reputable company I heard from a friend about them, the workers that came Matt Burns, Chris Miller were super friendly and did an amazing job that my husband and I were very happy with!! I will definately use them again if needed!

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

Thank you so much for leaving a review. I will make sure Matt and Chris know how happy you were..

We never get tired of hearing from our satisfied clients.
Thanks again

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.