I submitted a request for a quote and Angelo got right back to me. The quoting system is very slick and easy to use !!

This morning I had my attic topped up. Brian and Rob were great !! They were perfectly on time and very courteous. They used drop sheets and cardboard on corners so the hose would not scratch anything. They also cleaned up when they were done... Give these guys a raise, they deserve it.

I highly recommend GNI...

Sean, Bill and Phil were very professional and efficient. They worked quickly to get the job done, with minimal disruption to my daily routine. They arrived on time as scheduled, and immediately identified themselves. Provided an explanation of what would be done. Cleaned up afterwards, leaving no trace that they were even here.

Great customer support Eric was a beauty!! love the work well done. They were fast and efficent, cleaned up after completeing the spraying. Qoute was submitted with tons of proffessionalism.

Following an energy usage audit of my home I discovered the insulation
value in my attic was R25. A family member recommended Great Northern Insulation Contracting Ltd. whom I contacted to arrange an inspection and a quotation to increase the rating to R60. The installation was completed during the following week. I highly recommend Great Northern.The company and their staff were a pleasure to work with.

Very good service and the quality of the job was good, I was getting a liter of moisture being captured by my de-himidifier. In my cold room. Afterwards there was no moisture build up as the closed foam insulation did the job.

We had work done to different homes in the past week. In the most recent installation. the team of 2 (Sean and Craig) arrived a little early and asked politely if it was ok to start ahead of the scheduled start time which was appreciated. The job was done professionally and quickly. Both of them made sure to lay plastic over the hardwood floors especially since it had just snowed during the day. At the each job, they cleaned up and left the home tidy. Both jobs were completed professionally and I would recommend this company

We had work done by this company for our home addition. They missed some areas and had to return to complete in order for inspector approval. They came in and insisted the remaining spray foam could be completed WITH MYSELF AND MY TWO YEAR OLD DAUGHTER IN THE NEXT ROOM. Their own employees state you should be off the premises for 24 hours after installation. Have called to discuss the matter EIGHT TIMES in the last few weeks and NO ONE HAS CALLED BACK. I would NOT recommend this company, clearly safety is overrated.

The team showed up on time, worked professionally and did a good job. I would recommend the team for your retrofit installation needs. They cleaned up after themselves and were careful not to mess up our carpets with their boots while they were here.

The only reason I did not rate 10/10 is because the afternoon before my scheduled installation, their truck broke down and we had to rebook it for another day. As a result I lost half a day of pay for the time off work I took. Of course, its entirely understandable why it happened, but I would have expected a confirmation of the second booking prior to them arriving. Luckily I called in the morning of and the crew was already on their way. Turns out they did an excellent job on the attic insulation, from what I can tell so far. Brian in particular was great, very respectful guy and was able to answer any questions I had. They did the job fast, and didn't leave much of a mess afterwards to clean up. All I had to do was vacuum one room for 2 minutes and the rest was taken care of. Good job, good workers, flexible with times but would be nice for them to send an appointment confirmation email,call, or text beforehand.

Got a reasonably priced quote. Got an appointment within 2 weeks. The job was completed as described. However, there were some inconsistencies between what the sales rep said they could do and what they actually did. I was able to rectify the problem but just make sure you have everything said by the rep in writing. The spray foam guys accidentally sprayed my entrance door with fire coat. I have been reassured that it will be taken care of. Overall, the service was okay. Gets the job done. I find that some team have more in-depth knowledge about their services than some.