1.800.265.1914
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Keep your home warm this winter with insulation and air sealing.

Wow, just wow. First experience with Great Northern and I was and remain impressed with the experience

- Patricia

Save on your winter utility bills and take advantage of rebates.

Matt clearly outlined options and gave me the best option for my house under the GreenOn program.

- Karen

We have been keeping families warm and comfortable since 1980.

Professional, friendly, explained things, did a great job, and left my home as clean as it was when they came in!

- Clare

Save your money and energy for what really matters this winter.

From our first meet with Ryan, to the install crew of Matt, Ross, and Jake, the crew at GNI delivered superior service and a great product.

- Dan

Request a free, no obligation home evaluation.

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Welcome to Great Northern Insulation

At GNI, we service your project with the most experienced staff in the industry. Ongoing professional development is an obsession at GNI and we will not compromise at any level to bring to our customers the very best Installers, Sales Representatives, Customer Care Personnel, Field Superintendents, Estimating and Technical Support to your project.

Homeowners:<br/> Residential Retrofit
Homeowners:
Residential Retrofit
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Homeowners:
Residential Retrofit
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New Construction Residential
New Construction Residential
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New Construction Residential
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Commercial<br/> Retrofit
Commercial
Retrofit
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Commercial
Retrofit
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New Construction Commercial
New Construction Commercial
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New Construction Commercial
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Our Promise to You

We aim to exceed your expectations by ensuring you have an exceptional experience with us from start to finish. Our dedicated Customer Experience Team is here to assist you with any questions you may have, and our sales consultants will explain exactly what they are looking at while they are in your home. From product warranties to a satisfaction guarantee, we have everything you need to make your move to comfort pleasurable.

Read our complete Customer Promise.

FREE Online Energy Audit

Conduct a FREE Online Energy Audit of Your Home with the MIT Award Winning My Energy Expert Application.

Financing As Low As $13/month OAC!

It’s the perfect time to invest in your home comfort with our new and improved financing. We’ve partnered with Financeit to offer you an affordable monthly payment option for your next investment in the energy efficiency and comfort of your home. It’s now easier than ever to make your home feel like new again.

click here to learn more

 

Click here to make no payments for up to 6 months
* Additional fees apply

Are you an Industry Professional?
Western Ontario

935 Keyes Drive
Woodstock, Ontario
Canada N4V 1C3

Phone: 1-800-265-1914

Fax: (519) 539-7946
TOLL FREE: 1-800-265-1914

Southwestern Ontario

7035 Industrial Drive
Comber, Ontario
Canada N0P 1J0

TOLL FREE: 1-800-265-1914

Muskoka, Haliburton, Northern Ontario

1027 Elwell Park Road
Gravenhurst, Ontario
Canada P1P 1R1

TOLL FREE: 1-800-265-1914

Central Ontario

29 Ferndale Industrial Drive
Barrie, Ontario
Canada L4N 9V5

TOLL FREE: 1-800-265-1914

GTA East

103 North Port Road
Port Perry, Ontario
Canada L9L 1B2

TOLL FREE: 1-800-265-1914

GTA & South Central Ontario

450 Industrial Dr,
Toronto (Milton), Ontario
Canada L9T 5A6

TOLL FREE: 1-800-265-1914

Eastern Ontario

1035 Moodie Dr #1,
Nepean, ON
K2R 1H4

TOLL FREE: 1-800-265-1914

BBB

Great Northern Insulation - Better Business Bureau Profile.

Lowes

GNI is the Authorized & Trusted Insulation and Air Sealing Installer for Lowe’s

Enenrgy Savers

Energy Saving

Energy saving and energy efficiency is easier than one might think. Great Northern Insulation helps to identify performance issues, while taking advantage of improvement opportunities.

100% Canadian

100% Canadian

Great Northern Insulation is recognized as Canada's largest full-service insulation contractor. GNI is 100% Canadian owned, proudly serving Ontario customers since 1980.

Foam Masters

Do it right the first time
- with foam mastersTM

WALLTITE® ECO™ is a high-performance system, professionally installed by certified and approved specialists. Its C.C.M.C. approved (Canadian Construction Materials Centre) - with product quality guaranteed - and with installation by highly trained experts with the technical know-how to do the job right, the first time.

Homestars

Best of 2017

From reputation to responsiveness, HomeStars consistently ranks Great Northern Insulation at better than 95% for customer satisfaction. Thanks to everyone for the great ratings! 

HomeStars 2018

Best of 2018

For the second year in a row, HomeStars consistently ranks Great Northern Insulation at better than 95% for customer satisfaction. Thank you again to everyone!

GreenGuard

The GREENGUARD®
Gold Certification promise

GREENGUARD® Gold Certification ensures the strictest criteria for low-level chemical emissions. Certified products are safe for individuals with sensitivities (children/elderly) and safe for use in school environments and health-care facilities. The product certification is widely recognized by the LEED Rating System (Leadership in Energy/Environmental Design).

Insulthane Extreme

Insulthane® Extreme

For the ultimate in high performance spray foam insulation, Insulthane® Extreme is the professional choice for residential, commercial, and industrial application. With improved thermal performance over other products, Insulthane® Extreme has an exceptionally low Global Warming Potential (GWP). Considered environmentally friendly, this next generation spray foam insulation is non-ozone depleting, and exceeds specifications of other HFC product alternatives.

EcoLogo

ECOLOGOTM:
Multi-attribute product certification

ECOLOGOTM is an accredited sign of environmental performance – holistic – green – sustainable - and compliant with strict, third party standards. Life cycle criteria for product certification may include manufacturing and operations; health and environment; product materials and performance; and product innovation, development, and management.

3M

3MTM products.
Quality + Performance = Savings

3MTM energy-saving products are designed to keep warm air in, and cold air out, while keeping energy bills down. Products optimize energy efficiency in buildings and homes; improve indoor environment for occupants; and effect the reduction of seasonal energy costs. 3M products are authorized for LEED credits (Leadership in Energy/Environmental Design).

Baeumler

Baeumler ApprovedTM
Professional, Certified and Insured

Baeumler ApprovedTM gives you peace of mind when connecting with contractors, trades and home service providers. All Baeumler Approved members have demonstrated high quality work for customers and other trade professionals. Members must also have Workers Compensation, liability insurance of at least $1,000,000 and prove professional certification.

Holmes and Holmes

Holmes and Holmes

 

Mike Holmes and his son Mike Jr. (MJ) convert MJ’s bachelor bungalow into a two-storey home for MJ and his girlfriend Lisa. Choosing the newest materials and build techniques, the father and son team follow Mike’s famous motto – “Make it right.” The show can be watched on HGTV and DIY Network.

Enbridge

Enbridge Incentives

The Energy Conservation Program provides incentives of up to $1,600 to customers who achieve energy efficiency and fuel savings – and Great Northern Insulation can pave the way.

Renomark

Great Northern Insulation proudly abides by a renovation-specific Code of Conduct set by RenoMark™.

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