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With Spray Foam Insulation it's important to hire a professional

January 27, 2017

Spray foam insulation has earned a reputation as the best product of its kind. It's simply because it delivers results. When professionally installed, SFI is an effective sealant, an excellent insulator, and a practical soundproof barrier. Overall, there isn't a comparable product that can challenge the efficacy of spray foam - which is why more and more professionals are suggesting the install. On the downside, home improvement centres are promoting more of a DIY approach with spray foam. They offer various products, assorted installation tools, even ready-to-go kits. But bottom line, spray foam insulation demands the experience and expertise of a professional. The chemical compounds require careful handling, and the installation itself requires skill and proficiency. Like most specialized work, insulating with spray foam is about doing the job correctly in the first place. Having to do a re-work, because of a poor installation, can pose problems - it's costly, it's time consuming, and it's stressful. Worst-case scenario, a spray foam installation that is managed poorly can often compromise the health and well being of building occupants and/or residents. Professionals know how to properly manage a spray foam project. They know how to prepare the jobsite prior to the installation. They understand the nuances of the chemical compounds. And they are familiar with the unique complexities of an installation. Most importantly, a professional approach ensures that everyone is protected and safeguarded in and around the working space. Spray foam insulation should not be viewed as a weekend DIY home project. For the uninitiated, there is just too much risk. There could be issues with the installation itself. There may be health concerns. And there may even potential damage to the home. Worse still, once the spray foam has been applied, any problem areas will have to be remedied by a professional and with added cost. The point is, this is work for professionals - for those who are trained to handle the chemicals and qualified to operate the equipment. In fact, the best contractors are licensed and certified. And once finished, both product and installation can be guaranteed to perform. The critical thing for a homeowner is good short-term results and long-lasting performance, all without any problems. Because the spray foam product is so unique, a professional installer is crucial to success. The chemical compounds need expert preparation. The foam application requires thorough layering and meticulous coverage. And because the foam cures and hardens quite quickly, precision is key to creating an effective insulating envelope that will efficiently seal and insulate a given space. To be sure about professional installation, industry associations encourage consumers to choose contractors carefully and assess the warrantees and guarantees that might be provided. Needless to say, an informed consumer makes better decisions, and one of the better decisions is to work with a professional. This will prevent any potential pitfalls, as well as problems down the line. It's really quite simple with spray foam insulation - it's far better to do it right the first time around.

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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