Great Northern Insulation

The installers were courteous, efficient, and very knowledgeable. They answered all our questions. They did a great job and we're happy with the work that they did. We were happy. Thank you.

The installation team was terrific - they outlined what they would be doing, how long it would take, and asked appropriate questions (i.e. where can we bring the hose through). They left the house the way that it was before they arrived, and ensured to walk me through the final product.

From beginning to end (interaction with Aaron to the installation) it has been a wonderful experience. I would highly recommend GNI to family/friends.

Everyone from Matt Resor (the gentleman who came to do the appraisal), the office staff, to the technicians that completed the installation were friendly, courteous and professional. Matt was particularly helpful as we had an email exchange to modify the work he would have originally had to do--he was knowledgeable and always responded to me in a timely manner. My installation appointment was scheduled for 10am but the first technician came at 8am (luckily I was off work), this was the only negative point I can think of! Overall, very happy with the service provided by Great Northern Insulation; expedient, professional and courteous and would recommend to others!

The entire experience was great!. The crew showed up on time, very friendly greeting, introduced them selves, very tidy, clean up after themselves, and showed me the final product to ensure I was happy. I would highly recommend them to anyone!

Great experience dealing with this company; from Davis coming out to provide the estimate, to Derek & Frank, Bruce & Dave removing the old insulation doing the spray foam then blowing in cellulose. The job was completed over three days (as scheduled) and the crew cleaned up each day. Well done & thanks - we now have a sealed,warm attic!

I am so happy with your company from the sale to scheduling to the install.

I have used you in the past and was quite impressed how experienced and knowledgeable Bill was! This was the best job I have seen.

I own an older bungalow in Oshawa and currently rent out the basement. Sound was carrying through the floor boards and I wanted something that could help. I contacted Mike from GNI and he suggested Blown In Cellulose. The crew arrived on time, worked quickly but efficiently and overall were awesome to deal with!! The work required my tenant no access to her apartment for the entire day but the crew at GNI kept her updated and allowed her into the unit whenever she needed something. I will use GNI again for sure! VERY happy customer !!!!

We are very satisfied. Your installers were very courteous and answered all questions and concerns very pleasantly. They did an excellent job and Henry the sprayer was very meticulous and did a thorough job. They also cleaned up afterwards. I am very satisfied and will recommend your company and service.

The team from GNI arrived slightly earlier than expected – great .

Young fellows ( 3 ) were courteous and efficient – they were complete and gone by 11:00am ish .

I have NOT stuck my head in the attic , but I should assume that the job was completed as quoted .

The clean up was good , as I told them not to be too worried , as I would do the “detailing “ .

All seems fine , and if I need further insulation needs , GNI would obtain the work .

GNI was fantastic. I had to call back to have my garage looked at again because of a discovery issue. Gary responded quickly and resolved it. The spray crew arrived as expected and by time I got home from work they had just finished up. They cleaned up everything inside the garage before leaving and everything was as expected!

Right now the garage is much warmer than it ever was and looking forward to seeing the difference this winter.

All in all, top rate and professional job!