Great Northern Insulation

Home Inspection
ON
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Home Inspection
Great Northern Insulation
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93%

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Reviews by rating (past 12 months)
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Best of 2020 winner 9 timesBest of 2020winner 9 times
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Reviews for Great Northern Insulation

Average customer rating:
9.5 10 (854 reviews)

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Nada
Nada
0 reviews Kitchener, ON
10/10

Great Service - bookings process through to insulation service

Company referred to me by a realtor.
Smooth booking process and very organized.
Service professionals at the house were prompt, friendly and knowledgable and efficient.
Thanks to Gabe and Chris for a great experience.

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Ripped Off Senior
Ripped Off Senior
1 review Hastings, ON
1/10

Sealed up Attic Vents

I wasn't told they had sealed up every vent in my attic thus enabling my roof shingles to bake. I've had to replace the roof shingles. Roofers and building inspectors were shocked that GNI had completely sealed my attic. GNI says its what they call "Hot Attic". They refused to refund any portion of the $14,000 I paid for the insulation so I could put it towards the new roof shingles. BEWARE, they don't tell you your attic will be completely sealed and you need air flow or else be prepared to replace your roof shingles every few years. GNI took no responsibility at all. They've taken advantage of a senior woman to line their pockets. Do your research and ask your local building department about completely sealing off a roof before you purchase spray foam from GNI. Lesson learned - STAY AWAY FROM GREAT NORTHERN INSULATION!!!

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Frank Fata
Frank Fata
0 reviews London, ON
10/10

Whole house (attic and walls)

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.

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Kate
Kate
0 reviews Whitchurch Stouffville, ON
10/10

Great service - home insulation

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.

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Lily Estraya
Lily Estraya
2 reviews Vancouver, BC
10/10

Home Inspection

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.

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Private User
Private User
Private User reviews Cambridge, ON
10/10

Garage insulation

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.

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Private User
Private User
Private User reviews London, ON
10/10

residential home in London

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.

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Yasu in Toronto
Yasu in Toronto
1 review Ajax, ON
10/10

2 Car Garage Ceiling Insulation

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

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Joanne in Stoney Creek
Joanne in Stoney Creek
0 reviews Hamilton, ON
10/10

Insulation

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.

1 of 1 people found this review helpful.
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Sheri in Ajax
Sheri in Ajax
1 review Ajax, ON
10/10

Insulation of attic

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.

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The reviews on this page are the subjective opinion of the Author and not of HomeStars Inc.

More about Great Northern Insulation

Great Northern Insulation is an industry leading insulation installer with over 40 years experience. We are the largest insulation company in Ontario and have branches throughout the province. We are Energy Star and Foam Masters™ certified. We offer Free In-Home Assessment, contact us today to learn more.

CATEGORIES
Home Inspection, General Contractors, Renovation Advisors, and Insulation
SERVICES
Insulation
SPECIALITIES
Spray Foam Insulation, Blown Fibre Insulation, Air Barriers, Old Insulation Removal, Air Sealing & Draft Proofing, Fire Protection, Batts & Vapour Barriers, Specialty Coatings
WEBSITE
https://www.gni.ca/
YEAR ESTABLISHED
1980
LIABILITY INSURANCE
Yes
WORKERS COMPENSATION
Yes
WRITTEN CONTRACT
Yes
WARRANTY TERMS
https://www.gni.ca/about/service-commitment-great-northern-insulation
Company profile information is not moderated by HomeStars. Ask the contractor to verify before hiring.