Great Northern Insulation

Home Inspection
ON
Write a Review
Write a Review
Website
HomeStars
Home Inspection
Great Northern Insulation
Star Score
StarScore uses a complex algorithm which considers a company’s review ratings, responsiveness, reputation, and recency. Learn more.

93%

This is the average rating based on homeowner reviews.
This indicates how long it's been since the last review.
Low reputation means there has been review tampering or a company request to remove a review. This score is also impacted when we do not have enough information i.e: low number of reviews.
How well a company responds to Service Requests and Reviews.
Reviews by rating (past 12 months)
Best of 2019 winner 8 timesBest of 2019winner 8 times
Giving Back Award winnerGiving Back Awardwinner

Reviews for Great Northern Insulation

Average customer rating:
9.5 10 (779 reviews)

Sort by

stp.ryan
stp.ryan
8 reviews Toronto, ON
10/10

Spray foam +attic insulation fo new home

Great northern insulation installed foam and attic cellulose in my new house project. Spray foam was applied throughout main floor, on a cathedral ceiling spec and on cantilevered soffit areas. They also sprayed all ductwork in the attic space.

The installers were fast, thorough and clean. Minimal overspray (which was cleaned up after) and consistent application. Pricing was very competitive. Scheduling with the office was a breeze.

Thanks Great Northern Insulation for your work on this project!

Was this review helpful?
Company Response

Thank you so much for taking the time to review us, We're thrilled to know you were happy with the service from start to finish. It means so much when we hear directly from our customers on the great job we're doing. Thank you for choosing Great Northern Insulation!

Private User
Private User
Private User reviews Courtland, ON
10/10

Attic Insulation

After discovering that we had almost no insulation in the older part of our renovated home, we called Great Northern Insulation. Their rep came within a couple of days to assess our needs and provide us with an accurate financial estimate. We booked our appointment and within 2 weeks the company was here to do the work. They arrived well within the estimated appointment time. Both Phil and Billy were very professional, very courteous and very thorough. They were here for a couple of hours and when they left, you would never have known they were here. There was no dust, dirt or debris left behind and within hours, I can feel the difference in our home. So a big thank you.

Was this review helpful?
Jim in Ottawa
Jim in Ottawa
0 reviews Ottawa, ON
10/10

EXCELLENT JOB PROFESSIONALLY DONE

From order a quote to having blown in insulation installed the staff at GNI were amazing and professional. They arrived on-time and were knowledgeable and concerned about my satisfaction with the quote and the installation.
The installers were polite, punctual and professional and thorough. They cleaned up after the work was finished so you would not even know they were here.
GREAT JOB GNI!!!! I would recommend GNI to anyone!!!!

Was this review helpful?
Roof Insulation in London
Roof Insulation in London
0 reviews London, ON
10/10

Roof Insulation

The two service providers, Sean and Craig, were polite and efficient. Introduced themselves and were able to keep the house clean. When done, they insured it was all cleaned up. Thank you for a job well done.

Was this review helpful?
Company Response

Thank you for taking the time to review us, We're thrilled to know you were happy with the service from start to finish. we made sure to tell the crew that you were so happy with their workmanship. It means so much when we hear directly from our customers on the great job we're doing. Thank you for choosing Great Northern Insulation!

Private User
Private User
Private User reviews Port Perry, ON
8/10

Home Insulation- basement & attic

Both Great Northern teams completed two projects professionally and on time including: basement (poly) and attic (fibre) insulation. Based on heating cost reduction this represents a good investment. I would recommend them to other homeowners.

Was this review helpful?
Company Response

Thank you for taking the time to review us, It means so much when we hear directly from our customers on the great job we're doing. Thank you for choosing Great Northern Insulation!

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

Spray foam walls and blown in attic in 30x40 shop

The spray foam crew was great ! They were a father son team who took pride in their job . Everything wash masked off properly and the job was done properly as well. The blow in crew was though and quick and left no mess anywhere . I went with GN because they were the best price out of the 3 companies I had quote. My experience was great and I would recommend them .

Was this review helpful?
Company Response

Thank you for taking the time to review us, We're thrilled to know you were happy with the service from start to finish. we made sure to tell the crew that you were so happy with their workmanship. It means so much when we hear directly from our customers on the great job we're doing. Thank you for choosing Great Northern Insulation!

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

Insulation of basement and install of sump pump

Great Nothern Insulation gave us a thorough presentation of what to expect when insulating a part of the basement. Booklets received helped us to understand the methods used in order to render the service. The installation went all well with the proper followed up paperwork. Thanks to Phil and Billy for their professional though friendly service.

Was this review helpful?
Company Response

Thank you for taking the time to review us, We're thrilled to know you were happy with the service from start to finish. we made sure to tell the crew that you were so happy with their workmanship. It means so much when we hear directly from our customers on the great job we're doing. Thank you for choosing Great Northern Insulation!

Debbie in
Debbie in
0 reviews Minden, ON
10/10

Wow!

Great Northern Insulation lives up to their name. They were GREAT. From the time of the quote to the day of the actual insulation was less than 3 weeks. The team was very professional, tidy and efficient. And what a difference the spray foam made to the warmth of the house. I recommend GNI to everyone! Thanks for the Great job.

Was this review helpful?
Company Response

Thank you Debbie for taking the time to review us, We're thrilled to know you were happy with the service an that the crew was prompt and tidy. It means so much when we hear directly from our customers on the great job we're doing. Thank you for choosing Great Northern Insulation!

Sheila K
Sheila K
1 review Palgrave, ON
10/10

Excellent Job on Attic Insulation

Very happy with the blown-in cellulose insulation added to my attic. After having a home energy audit done, I was told I only had R6 in my attic. Hired GNI after getting 3 quotes and their price was the most competitive. I have a room over my garage that has always been freezing cold in winter and hot in summer, and I thought it was just because it was above the garage, but the GNI crew told me that there was NO insulation above that room (I guess the builder got lazy and didn't insulate that part of the attic). After the celluluse was added, I am shocked at the difference in that room - huge difference in the temperature...it's no longer freezing cold. The GNI crew were neat and tidy. Very pleased.

Was this review helpful?
Company Response

Thank you Shelila for taking the time to review us, We're thrilled to know you were happy with the service and that you've already starting noticing a difference. It means so much when we hear directly from our customers on the great job we're doing. Thank you for choosing Great Northern Insulation!

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

cellulose upgrade to our attic insulation

The team of 3 arrived a little early... no problems. They put protection over anything that their hose might chafe and went to work. Apparently, our attic was 'easy to do' because of the older roof joist pattern. They were in and out in less than 2 hrs... 18" full depth.

Very personable and professional. two were experienced, and one was a bit of a deer in the headlights. They treated him well!

Would be my pleasure to recommend.

Was this review helpful?
Company Response

Thank you for taking the time to review us, We're thrilled to know you were happy with the service. We made sure to tell the crew that you were so happy with their workmanship. It means so much when we hear directly from our customers on the great job we're doing. 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

Great Northern Insulation is an industry leading insulation installer with over 30 years experience. We are the largest insulation company in Ontario and have branches throughout. We are Energy Star and Foam Masters™ certified. We offer Free In-Home Assessment, contact us today to learn more.

CATEGORIES
Home Inspection, General Contractors, and Renovation Advisors
SERVICES
INSULATION
SPECIALITIES
Spray Foam Insulation, Blown Fibre Insulation, Air Barriers, Old Insulation Removal, Air Sealing & Draft Proofing, Fire Protection, Batts & Vapour Barriers, Specialty Coatings
WEBSITE
https://www.gni.ca/
LIABILITY INSURANCE
Yes
WORKERS COMPENSATION
Yes
WRITTEN CONTRACT
Yes
Company profile information is not moderated by HomeStars. Ask the contractor to verify before hiring.