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Reasons Smart Homeowners Replace Home Insulation in Toronto

August 21, 2017

Clearly, there are countless reasons for homeowners to replace home insulation in Toronto - every home is different, and every homeowner has different priorities. For many, improving energy efficiency in the home is a big priority. Year over year, it means lower utility bills for heating and air conditioning – and that by itself is a worthwhile investment. For others, replacing insulation might be about damage in the attic or poorly performing insulation materials. The fact is, whatever the reason, replacing insulation will have both short-term and long-term benefits.

Upgrading R-Values in the home

One very good reason for homeowners to replace home insulation in Toronto is to upgrade R-Values. Most homes could actually use this improvement, because the existing insulation has deteriorated or because it was never good enough. With newly installed insulation, there are fewer drafts, less heat loss in winter, and less heat penetration in summer.

High heating and/or cooling bills

In every North American home, heating and air conditioning are major contributors to monthly utility bills. When those utility bills are higher than reasonable, it would be a good idea for homeowners to replace home insulation in Toronto. High utility bills are signs that insulation is not performing. Newly installed insulation will reduce heating/cooling costs.

Room temperatures inconsistent

Inconsistent room temperatures could result from insulation that is simply inadequate (either the materials or the installation). This can happen in summer and winter, where air leakage and poor ventilation cause “hot spots” and “cold spots” throughout the house. These dynamics are another good reason for homeowners to replace home insulation in Toronto.

Infestation of the attic insulation

It’s not uncommon for attic insulation (even basement insulation) to be infested with insects and pests, let alone rodents. In these types of situations, the nature and extent of an infestation needs to be addressed and properly remediated. Beyond that, damaged materials must be replaced – this is an essential reason for homeowners to replace home insulation in Toronto.

Leaky roof and water damage

Leaks in a roof are usually associated with water damage throughout the attic, including damage to the installed insulation. Worse still, deteriorating insulation materials can often lead to mold, especially where water damage has spread. Here, the only option is to make appropriate repairs, and continue with the replacement (complete or partial) of insulation materials.

Old and aging home insulation

Insulation that was installed in an older home is most assuredly in need of improvement. The materials were probably lower quality than today’s materials. The space was probably not air sealed for added performance. And the materials have deteriorated in some way over the years. Replacing the old insulation will have a big effect on energy efficiency/consumption.

While some homeowners might entertain the idea of DIY insulation, there is nothing that can compare with a professional approach. With Great Northern Insulation, removal and replacement of home insulation is comprehensive - repairs and retrofits are made; new insulation is high quality; and every installation is to code. To find out more, call the experts at Great Northern Insulation at 1-800-265-1914, or visit the company’s website at www.gni.ca .

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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