GNI was fast and professional. the process from start to finish was a little over a month. the crew showed up and was clean and friendly. upgrade was to R60 and the family could notice the difference on the upper floor the same night. I am using GNI again for spray foam of my basement and garage. regards, mike
- Approximate cost of services:
- $1,600.00
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- Company Response
Thank you very much Michael for choosing the team at Great Northern Insulation, and for taking the time to leave us such a great review. We are very grateful for your business.
The team at Great Northern Insulation