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Spray Foam Insulation Today, It's the Contractor's Favourite

December 11, 2014

Building materials and construction costs have all been on the increase in the last few years.At the same time, there is increasing consumer demand for energy efficiency.Ands that, of course, includes home building products, as well as construction techniques.Spray foam insulation has fast become the "cure-all" for all of the above.It has proven itself as the best multi-functional insulation product on the market today, with practically no similar products that can compare

On of the upsides of spray foam is that it can be applied in every place and in every application, including inside walls, above ceilings, under floors, around foundations, and throughout attics and crawl spaces.A proper application delivers better R-value than other insulation products (or combination of products), and provides a moisture management system that delivers its own specific benefits to the building and to the indoor air environment.

The spray foam installation uses specialized equipment and a customized spray applicator to apply the foam (also known as polyurethane foam).It presents as a thick liquid, expands to many times its volume, and quickly hardens into place.Spray foam has become the favorite of the professional contractor for good reason - one application does it all in one shot - it's an air barrier, a vapor barrier, and an excellent insulation insulator all in one.

With spray foam, there are no gaps or openings left unfilled after a proper install.Depending on where the application takes place, the foam blanket will envelop everything, including wall studs, plumbing pipes, HVAC ductwork, and electrical wiring.A comprehensive installation will also add structural strength to the area where it's applied.There are also "green" advantages with the product and the install, but these will vary depending on the extent of the project.

Spray foam is considered a premium product with premium benefits.The long-term energy savings are measurable; the consistency of indoor temperatures from one season to the next is noticeable; and the improved indoor environment is notable, with much less dust and pollen.The product and installation are known to be more expensive than other options, but there is nothing more cost effective, and nothing that delivers equivalent value over the long run.

One particular highlight of spray foam, especially when installed throughout an attic space, is the enhanced performance of HVAC equipment (heating, ventilation and air conditioning).The equipment operates much more efficiently, and quite often performs to the full potential that is was meant.Needless to say, this contributes to reduced energy consumption, and significant cost savings during the winter heating season and the summer cooling season.

Beyond its insulation features, spray foam also prevents mold growth, and restricts both insect and rodent infestations.And because the application acts as a seamless air barrier, it also cuts down on sound and noise, creating a quieter indoor environment throughout.Over the years, a good install will not shrink (like other products) and will therefore not lose any of its R-Value.Indeed, a spray foam application needs NO replacement, refilling or replenishment.

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
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Canada P1P 1R1

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29 Ferndale Industrial Drive
Barrie, Ontario
Canada L4N 9V5

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Port Perry, Ontario
Canada L9L 1B2

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450 Industrial Dr,
Toronto (Milton), Ontario
Canada L9T 5A6

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Nepean, ON
K2R 1H4

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Sarnia Ontario
Canada, N7T 2H3

TOLL FREE: 1-800-265-1914

Niagara Region

6260 Don Murie St
Niagara Falls, ON
L2G 0B4

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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.

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

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

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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

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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.

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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.


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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).


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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.


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