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's no longer freezing cold. The GNI crew were neat and tidy. Very pleased.

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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!