I have recommended this company many times and they are very good.
Promo and excellent clean up.
I will highly recommend them over and again when needed.

Great work every time.

From quote to installation, the customer service was a 10+. During installation, both crews on both days were great. Friendly, helpful, and informative. Fabulous job and I'm so excited to save on heating costs and finally have a warm house.

We used Great Northern Insulation for the first time. They were Fast reliable service. Very friendly professional service. Reasonable cost. I would recommend Great Northern Insulation to anyone looking for quality and professional work.

Great option for insulation friendly and helpful. Showed up on time left my garage clean very professional. Had great ideas for insulation of my garage door. Even carried it in a delivery for my wife. Very satisfied would recommend to anyone.

Henry and Frank did a great job insulating the attic. They were both professional in their work and made sure everything was cleaned up. Matt was thorough on his quote and explained everything.

Sometimes you get the true measure of a company when things don't go perfectly. The quote process was very easy and professional. The guys who did the work were prompt and fast. The quality of the work was great. However, after they left I noticed my garage door button wasn't working. I sent an email, expecting to hear back in a few days. They got back to me within 12 hours and were super friendly about it. Someone came out and fixed it right away. It turned out that the person who put in the garage door opener decades ago, spliced some wires together with some tape that got old. The spray foam knocked it loose a bit and got in there. So not really the fault of the Great Northern guys. I really appreciated how fast they were at responding and how friendly they were

Billy and Dave where professional, efficient and tidy. Good customer service. They attended my house, ensured plastic was on the floor to prevent damage. Once completed they cleaned up everything so it was as good as new.

Our salesman was exceptionally friendly and easy to deal with. The process went smoothly and we notice a big difference in the temperature of our upstairs. workers were very professional and did a great job cleaning up after themselves.

We had Phil and Darrell to insulate our attached garage today and they were awesome! We were quoted a day and a half and they were done by 1pm! Our garage was already dry walled and painted so they had to drill small holes to add the insulation. They explained everything and advised us how to cover the holes back up. I would recommend

Couldn't be happier about having this job done. The gang from GNI were very informative on what was involved and the improvement's going forward. Bring on the WINTER months.
Thank you GNI,