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With Home Insulation, It's Important To Do It Right

February 28, 2017

For homeowners contemplating new insulation, it's important to get it done right the first time. And choosing the right contractor is key to success. Today, there are many insulation companies out there, each peddling their products and their services. What's important for a homeowner is to do some research prior to making a final decision. This is especially important if spray foam insulation is involved - it's highly specialized and requires a good deal of industry experience. With home insulation, regardless of product, installation has to be professional - anything short could set the stage for costly re-installation and a stressful stretch of time. The thing is, it's not good enough for a local contractor to simply promise installation results. The product choice has to be right for the job, the installation has to be to code, and the finished work must be somehow guaranteed. Otherwise, there isn't any company assurance of long-term project performance. Good contractors have in-depth product knowledge, along with veritable installation experience, particularly with specialty insulation products. A good contractor will also stand behind all of the work with a customer satisfaction commitment - a money-back promise; a product warranty; and a company satisfaction warranty. Doing the extra homework when choosing a reliable insulation contractor will pay off for the homeowner, with better short term and long term outcomes. Unfortunately, with spray foam insulation, there are too many disappointments, mostly because of substandard workmanship. Shopping around for price alone can turn out to be risky, simply because spray foam cannot endure a second-rate install. Having to deal with a deficient install means having to remove and reinstall the insulation. And with spray foam, this could entail costly work in order to remedy the situation. The solution: doing it all right the first time around. Spray foam insulation demands experience and expertise. Professionals are trained to work with the chemical compounds, and are proficient with the intricacies of the installation. Clearly, it's the quality of an installation that will guaranty maximum performance for the product installed. Here again, spray foam is demanding - there is no way to ensure peak performance without ensuring superior installation. For that matter, a quality approach to installation applies to all products. Whatever the insulation product, professional installers do it right - they follow the construction code and they install everything according to the specifications. As it is, it's up to the homeowner to choose a contractor who will operate accordingly. It's all about being informed, so that astute project decisions can be made during the life of a project. Better-informed consumers also work more constructively with their contractor, making sure that their project needs are satisfied. Insulation is one of the better home improvement projects that a homeowner can undertake. The real question is: why not do it right the first time? With a professional, an installation should last for years, and provide long lasting performance. Best of all, the energy savings with high quality insulation can often pay off the initial project investment in very short order.

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

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

Greater Toronto Area

2 Guided Court
Etobicoke, ON
M9V 4K6

TOLL FREE: 1-800-265-1914

GTA East

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

TOLL FREE: 1-800-265-1914

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

Niagara Region

25 Lincoln Ave
St. Catharines, ON
L2P 2C7

TOLL FREE: 1-800-265-1914


Great Northern Insulation - Better Business Bureau Profile.

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

Trusted for Over 40 Years

Over 40 Years in Business

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.

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

January, 2021 regulatory phaseout of hydrofluorocarbons (HFCs) with the introduction of WALLTITE CM01. Using hydrofluorolefins (HFOs) with lower global warming potential (GWP) compared to HFCs, WALLTITE CM01 is the next generation of spray foam insulation.



Heatlok® Soya HFOTM leverages Honeywell’s latest Solstice® Liquid Blowing Agent technology. This new hydrofluoroolefin (HFO) blowing agent is the most environmentally conscious blowing agent produced to date, with a zero ozone depletion potential (ODP) and a global warming potential (GWP) of 1, which is more than two orders of magnitude (99.9%) lower than HFCs used in this industry.


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).

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 Home Efficiency Rebate Plus program offers up to $10,000 in home reno rebates – 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?

Climatizer Cellulose


CLIMATIZER PLUS cellulose insulation is manufactured from a minimum of 85% locally-sourced post-consumer recycled newsprint. Non-toxic additives are applied to the uniquely fiberized paper generating a building material with superior thermal and acoustic properties, as well as exceptional resistance to fire, moisture, mould and pests.

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