Great Northern Insulation

We hired GNI to replace our attic insulation. They did a great job. While removing the old insulation they found issues with the vapor barrier. It was crumbling, which meant they needed to do a hybrid installation. This involved installing a layer of spray foam before adding the new insulation. While this did increase the cost of the job quite a bit, they were very transparent about why this needed to be done, and they were fair with the price for the increased scope of work. All the work was done on time and everyone, from Jason, the sales rep, to Dan, the install team, and all the girls in the office were very professional and a pleasure to deal with. We are grateful they pointed out the issue and recommended the proper solution. Do it right and do it once! We just had a new heat pump installed about a month ago, and we have already seen how the new insulation has reduced the workload on the heat pump. We were referred to GNI by the man who did our roof in 2015, and I would recommend GNI to anyone in need of insulation upgrades.
Feb 24th, 2023

The work was done on time BUT the issues began after it was done. They sent me a final invoice stating in clear terms how much I owe them. I paid it in full that very same day. The following week they sent me another email telling me I still owe them money and I explained I sent the money snd attached confirmation of payment. They replied this new amount is for some other invoices "posted on my account". Their words not mine. It looks like this company is defrauding their on customer by asking for more money after they have told you your invoice was paid in full. Be very aware!
Jan 29th, 2023

Woke up the whole neighborhood at 7am. Extremely loud.
Dec 29th, 2022

Completed the job quickly. Left a mess in the house and dinged our new front door handle.
Sep 11th, 2022

Had them insulate our attic, they were to put in R60. Later discovered through an inspection we only had an average of R30 afterward. So they put in half the Insulation they were paid for. Over 3 months of calling to get it corrected and they just keep making excuses, and now wont even answer or return calls. Head office says it must be handled by the local Port Perry branch who did the work but they wont even respond. Finally got company rep out, he agreed insulation was insufficient, not sure why, is scheduling a truck to top up to proper depth.
Nov 30th, 2021