Great Northern Insulation

Had our attic insulated, we have dropped the temperature on our thermostat and are toasty warm. I will recommend Great Northern to anyone who asks. Thank for the great job and the friendly and knowledgeable crew.

Job well done, clean, on time, competitive rate. Fulfilled contract to a T
Could not have hired any better. I would recommend.

Awesome crew, here before scheduled time, done before scheduled time, very professional, very clean while working, very knowledgeable! Highly recommend

Our attic insulation upgrade was completed as per their estimate. They arrived a week earlier due to a last minute cancellation. Work was completed as advised, within a few hours. They left our house after cleaning up all residual materials, drop sheets were utilized and used properly. We are very satisfied with the work.

Ryan and his crew did a very good job at installing batt insulation and vapor barrier throughout the house. Thoroughly cleaned up before leaving site. Great customer service as well, always letting me know proactively what was going on and what the plan was.

Great Northern insulation rushed the job, and caused $600 in damage. I felt sick to my stomach after seeing their work. It took me two weeks to cut back the amount they oversprayed on my walls. They sprayed foam over my outlets, sprayed foam into my ducts, and sprayed too much product behind ducts causing them to bend. They sent a second crew to fix some areas, but they left large gaps without foam. Was not the prettiest job by any means

The GNI crew, Derek (lead), Shawn and Paul, arrived on time, thoroughly prepared the cottage for spraying and then worked for 2 more days to carefully complete the significant job. Derek's spraying work was exceptionally well done and his assistants, Shawn and Paul, did a great job finishing and cleaning up afterward. We highly recommend Derek's crew at Great Northern Insulation in Gravenhurst.

Work was done quick and on time. Forgot to do 1 piece of work at outset but that got fixed quickly. The cribbing to keep the insulation in place didnt quite go all the way around so a few inches gap meant it snowed on me a little to check out the work so Ill give them a 9 not a 10. But would use again and recommend.

The crew arrived on time, completed the Job quickly, and cleaned up afterward. I highly recommend Great Northern Insulation.

The sales and installation crews were fair and prompt , clean and completed the job quickly.