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Spray Foam Insulation - Today's Most Sought After Option

December 04, 2014

In recent years, spray foam insulation has been duly recognized for its definite advantages over other insulation products.Spray foam is not particularly well suited as a DIY project, and it's certainly not the cheapest approach to insulation, but it remains the most sought-after installation technique today.Taking into consideration the product advantages, and the relative cost of product and installation, the question is - is it worthwhile long-term?

Home insulation should really be a one-time project.It should be done right the first time, and it should be done once and for all.The spray foam product itself has evolved in many ways over the years, and today it has become the leading insulation product amongst industry professionals across the nation.It's an innovative product; its very versatile in application; and it delivers more benefits and better results than any other product.

Generically, it's known as polyurethane foam, and can be easily applied through the entire home - it's an excellent sealant and works well in virtually any space where it's applied.For large, expansive areas, spray foam acts like a "thermal envelope", providing exceptional sealing coverage and R-values that are above and beyond the capacity of other insulating products.A good install will deliver the best insulation performance available to you day.

A professional installation, using a quality spray foam product, will bring many benefits to a building structure:indoor air temperatures are better balanced; moisture levels are better controlled; and air circulation and air quality are enhanced.The whole idea is to create an indoor environment that operates at full potential, provides energy efficiency, and brings comfort to the occupants.In fact, spray foam insulation also contributes to energy savings.

The latest advances in HVAC systems and temperature control mechanisms have resulted in energy savings that every consumer wants.As well, there have been significant changes in the construction industry, in terms of delivering energy efficiency and conservation.All things considered, the spray foam approach to insulation can contribute to energy savings between 30% and 50% yearly - and that makes for substantial savings over the long term.

There is no better sealant than spray foam.It prevents pollens and dust from infiltrating the indoors, and therefore allows for better air circulation.Those who suffer with allergies from season to season notice a difference, almost immediately.As it is, spray foam is mold resistant (which is important in the attic) and does not provide a welcome environment for insects or rodents.It has also proven itself as an effective noise reduction barrier.

Spray foam insulation is known to be a more costly application than other products.Best left to an insulation specialist (it's not a good DIY project), both product and installation are more costly than other approaches.However, the benefits derived from a good install will far outweigh the upfront costs, especially when considering the long-term savings.Simply put, spray foam is a premium product, with long-term benefits, and measurable savings.

Western Ontario

935 Keyes Drive
Woodstock, Ontario
Canada N4V 1C3

Phone: 1-800-265-1914

Fax: (519) 539-7946
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M9V 4K6

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Canada L9T 5A6

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Eastern Ontario

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Nepean, ON
K2R 1H4

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Niagara Region

25 Lincoln Ave
St. Catharines, ON
L2P 2C7

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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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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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