Call Now1.800.265.1914

Why Spray Foam Insulation?

November 10, 2014

It seems counter-intuitive today, but many years ago we had little problem living in a home that was overly drafty and poorly insulated.Today, things are quite different.Besides the fact that energy costs are steeper than ever, our attitudes have changed about energy conservation and energy efficiency.All this applies equally to warm climate zones, damp climate zones, and cold climate zones.We all just want to be comfortable in our indoor environments.

The bottom line when talking about energy consumption, energy conservation, and energy efficiency is INSULATION.And practically every expert in the field will agree that a so-called "healthy house" is one that is well sealed, well insulated and well ventilated.When indoor air circulation and moisture movement are well managed, the result is an indoor environment that is balanced and comfortable - a win-win.

A homeowner knows exactly when the insulation is inadequate.Walls are cold.Heating costs are high.Windows are drafty.And heating cycles are uneven.For the summer months just flip all those deficiencies once over.On the other hand, effective insulating materials, along with proper installation techniques can do away with all of the above, while delivering an enhanced level of indoor comfort, and substantially reduced energy costs.

As a starting point, the basics are important to understand.The effectiveness of insulation is measured in R-VALUE (the metric equivalent is RSI VALUE).The higher the R-value rating - the more resistance there is to air movement.With this kind of universal classification, building codes can specify minimum R-value requirements for various applications, including usage in new construction, retrofitting projects, and renovations.

When it comes to product options, industry experts everywhere agree that there is no better insulating material than spray foam insulation.Nothing seals better, and nothing prevents air and moisture movement better.The savings on seasonal utility bills are significant; mold and airborne pollutants are eliminated; and the improved indoor air environment contributes to better health and wellbeing for residents.

Spray foam insulation, commonly known as polyurethane foam, has become the product-of-choice for professionals in the insulation industry.The compound is sprayed directly into a roof, wall or floor cavity, and blankets the area like no other product.It presents as a thick liquid - quickly expands as it is applied - and just as quickly hardens into a dense layer of foam insulation.The final coating acts simultaneously as an air and moisture barrier.

Spray foam insulation will deliver the highest R-value rating of any insulation product on the market.And when expertly installed, the application leaves no gaps, cracks, or crevices - even those hard-to-reach spaces are filled, covered and sealed.In many cases, and with an energy-efficient furnace, a homeowner can save up to 40% on energy costs when the home is outfitted with spray foam insulation.

Overall, spray foam insulation is somewhat more costly than other products.But from a cost-benefit perspective, the cost makes sense.It's a premium product that will deliver premium benefits.The installation will last a lifetime.There is no need for replenishment.And the "pay-back" period is between 2 and 7 years.This is truly a good investment for the home, especially when thinking about the long term.

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
Canada N0P 1J0

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

GTA East

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

TOLL FREE: 1-800-265-1914

GTA & 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


259 Campbell Street
Sarnia Ontario
Canada, N7T 2H3

TOLL FREE: 1-800-265-1914

Niagara Region

6260 Don Murie St
Niagara Falls, ON
L2G 0B4

TOLL FREE: 1-800-265-1914


Great Northern Insulation - Better Business Bureau Profile.


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.

Homestars Best of 2020 Award

Best of 2020

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

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

Enenrgy Savers

Energy Saving

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.

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

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.


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).


Baeumler ApprovedTM
Professional, Certified and Insured

Baeumler ApprovedTM gives you peace of mind when connecting with contractors, trades and home service providers. All Baeumler Approved members have demonstrated high quality work for customers and other trade professionals. Members must also have Workers Compensation, liability insurance of at least $1,000,000 and prove professional certification.

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 Energy Conservation Program provides incentives of up to $1,600 to customers who achieve energy efficiency and fuel savings – 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?

Please, enter a valid value

Incorrect values!