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How Safe is Spray Foam Insulation?

November 19, 2015

Safety with spray foam insulation has everything to do with a professional approach to project management. With spray foam insulation, safety is about proper working conditions; it's about professional installation; and it's about competent and qualified product handling. This is not a project work for the uninitiated - professional installers are highly trained, with product handling expertise, and comprehensive application experience. Spray foam insulation requires it all. Industry professionals are in general agreement that when spray foam insulation has "cured", the polyurethane spray foam compounds are safe.

spray-foamBut the fact remains - these are highly specialized chemical compounds, and they require skill and proficiency during preparing and installation. Beyond work site safety, professional installers also ensure the safety and security of occupants - and that means vacating premises during the application of the spray foam insulation. As it is, spray foam insulation is an amalgamation of "live" chemical compounds. These are mixed and prepared at the work site, so it's critical for the installer to work safe. Here again, it's key to note that a typical homeowner should not be engaging in a weekend DIY project. Professional contractors are highly trained - they are always outfitted with personal protective equipment (PPE), and are always applying spray foam insulation under strict safety protocols.

For the homeowner, it's particularly important to hire a contractor who is reputable. Contractors who specialize in spray foam insulation will provide installers who are licensed and certified, and who subscribe to industry standards for health and safety. And today, with spray foam insulation gaining such popularity, it's absolutely mandatory for the homeowner to be focused on safety. Needless to say, the better contractors are already on board with these concerns. Spray foam insulation is overseen by various industry associations, and regulated by government standards.

But clearly, nothing is perfect, and homeowners must be attentive. Here, "let the buyer beware" is the working approach, and that means choosing a contractor with scrutiny; assessing the contractor's credentials carefully; and doing some research on the contractor's history. It also means keeping a close eye on the installers and what they're actually doing onsite.


A safe spray foam installation will have all the noticeable signs of professionalism. The installer will ensure that the final application is fully cured. The project manager will ensure that there are no unusual odors or fumes being emitted. And finally, there should be NO rupture or cracking of the insulation envelope. The truth is, a good contractor will be diligent from start to finish, and will be aware of issues before, during and after installing the spray foam insulation. In Canada, standards for spray foam insulation are more rigorous than the USA. As such, reports about bad installations or awful outcomes are infrequent, as are associated consumer complaints. But it's important to remember that nothing is perfect, and even with the best company and the most experienced installers, problems do arise. Just another reason to hire a reliable, reputable contractor who can offer guarantees on the product installed and the work performed.

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


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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™.


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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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