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Energy Efficiency in a Typical Residential Home

March 26, 2016

Homeowners across the country are becoming more and more aware about energy consumption and energy efficiency. The main concern is about reducing utility costs, but it's also about improving indoor comfort, and even about being conscious of the environment. For older homes, especially the ones that are poorly insulated, heating and cooling costs can be completely out of proportion. And when compared to newer homes with better insulation and better airtightness, it's not uncommon for utility bills to be 25% higher. Year after year, statistics show that 50% - 60% of energy usage in the home is directly related to heating and cooling. This is why many homeowners are choosing to upgrade or retrofit their home insulation. Without doubt, a well sealed, well insulated home requires far less heating during winter and far less cooling during summer. Best of all, the energy savings over the long term serve to offset many of the project costs that are associated with upgrading or retrofitting. Home insulation is a home improvement project with paybacks. In Canada, CMHC (Canada Mortgage and Housing Corporation) highly recommends doing an Energy Audit prior to doing any actual insulation work. Amongst other assessments, a qualified technician will measure the airtightness of the house, and will identify critical areas of air leakage. Recommendations are then made for window and door improvements, heating system enhancements, and insulation upgrades. Probably the most important assessment is the measure of airtightness - something that is critical for energy efficiency. Reducing air leakage through exterior walls, roof cavities, and foundation walls is the highest priority when insulating a home. It will have the most effect in terms of improving energy performance. And for an expert contractor, this is usually the first consideration with an insulation retrofit. Leaking air, regardless of the location in the home, always reduces the effectiveness of insulation, no matter how professional the install. As well, air leakage allows moisture to accumulate, further compromising the indoor air environment. A well-executed insulation retrofit will resolve air leakage issues using a variety of approaches. Clearly, the Energy Audit will isolate the common and obvious air leaks that need attention. Where necessary, thermo-graphic equipment might be used to assess "hidden" pockets of heat loss. Thereafter, a contractor can offer solutions that may include weather-stripping, caulking, sealing, and of course, insulation. Indeed, this is where choosing the right insulation product for the job will make a major difference in project outcomes. When it comes to installing insulation, this too requires expertise. There are countless products available today, each with unique attributes and each with a specific price point. Clearly, there are important choices to be made: thermal resistance (R-Value) must be considered; ease of installation must be determined; and project cost must be calculated. All of this is best managed by a professional who can offer viable retrofitting options to the homeowner - options that deliver the best results, and the most cost effective investment. Needless to say, there are homeowners who are attracted by the prospect of saving money with a DIY (do it yourself) approach to insulation retrofitting. Most simply put, this is work for those who have the acquired skills, experience and expertise to guarantee optimum outcomes

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?

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