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Industry-Leading Training Program

June 07, 2022

The GNI Difference: Industry-Leading Training

The difference between doing a good job and a great one is knowledge. So while most insulation companies offer hands-on training in the field, GNI takes learning to the next level. In addition to on-the-job training, we also provide our crew members with in-class and online education, as well as hands-on learning at our state-of-the-art training facility.

In a recent employee survey, 70% of our crew members said they had received opportunities to learn new skills at work, and 40% said they’ve had several opportunities in the last 12 months alone. So not only do our customers get exceptional service, our installers gain the skills and confidence they need to do excellent work, tackle problems when they arise, reduce callbacks – and grow their careers.

How our trainers got their knowledge

This industry-leading program is the effort of two pros with a lot of knowledge: Bernie and Sam. Close friends since high school, these two insulation ninjas are thrilled to be sharing their know-how with up-and-coming GNI installers.

As two generalists who know all the facets of the business, there was nobody better equipped to get crew members learning and upgrading their skills. The duo oversaw the building of the training facility, developed training content – and created the program as it is today. Now they teach building science and building envelope principles. Installers test out what they’ve learned in class in the training house, a controlled environment for scenario-based training.

“In the training house, we can actually blow in and remove insulation from an attic,” says Sam. “There's a lot of hands-on stuff on how to vent a house and properly calculate your venting. We focus on the stuff our installers see day to day.”

Learning beyond the classroom

Bernie and Sam are hands-on across the business. Not only do they train installers, they’re also involved in new product testing and forensic analytics of service issues. What they learn there goes directly into the content they develop.

The learning management system (LMS) is another facet of the comprehensive program. Accessible to all employees, it has over 200 courses, ranging from third-party videos and manufacturer content to custom courses created internally by Bernie, Sam and Terry, the LMS coordinator.

3 days of intensive learning

Training is offered primarily to installers who have been with GNI for 3 to 6 months and have had a chance to learn the basics on the truck. It’s a combination of class time spent on theory and practical time in the facility. But it’s not like school: it’s informal and laid back – and even fun.

“Training at GNI is a no-stress zone,” says Bernie. “It's a chance to talk shop, compare stories and get to know other installers. We see ourselves as mentors rather than teachers, and really encourage an open, friendly environment.”

The support doesn’t end when the 3 days are up

Bernie and Sam are always open to calls and questions. They've set up a WhatsApp group that lets crew members stay in touch with them and with each other: messages range from social stuff to questions about issues crew members encounter on site.

“Our installers know it's not just two of them on a truck out in the field somewhere, trying to figure everything out on their own,” says Sam. “We've created an environment where you can reach out and get support. There are people here that care about what you're going through.”

Now hiring crew members in Ontario

Looking to join a company that supports you with all the knowledge you need to do a great job and grow your career? Great Northern insulation is hiring crew members across our Ontario locations – apply today.

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


259 Campbell Street
Sarnia Ontario
Canada, N7T 2H3

TOLL FREE: 1-800-265-1914

Niagara Region

6260 Don Murie St
Niagara Falls, ON
L2G 0B4

TOLL FREE: 1-800-265-1914


Great Northern Insulation - Better Business Bureau Profile.


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!

Homestars Best of 2019 Award

Best of 2019

For the third year in a row, HomeStars ranked Great Northern Insulation at better than 95% for customer satisfaction.

Homestars Best of 2020 Award

Best of 2020

For four years now, HomeStars has ranked Great Northern Insulation at better than 95% for customer satisfaction.

Homestars Best of 2021 Award

Best of 2021

HomeStars has ranked Great Northern Insulation as a company that goes above and beyond in every aspect of business for the year of 2021.

Homestars Best of 2022 Award

Best of 2022

HomeStars has ranked Great Northern Insulation as a company that goes above and beyond in every aspect of business for the year of 2022.


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.

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.


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 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 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.


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


We are Verified & Bonded by eRenovate. When you choose to proceed with our services through their platform, you receive the gaurantees set forth through their program.

As Seen on Love It or List It

The GNI crew have been featured installing insulation on Love It or List It - have you seen our logo in an episode?

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