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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

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

Greater Toronto Area

2 Guided Court
Etobicoke, ON
M9V 4K6

TOLL FREE: 1-800-265-1914

GTA East

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

TOLL FREE: 1-800-265-1914

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

Niagara Region

25 Lincoln Ave
St. Catharines, ON
L2P 2C7

TOLL FREE: 1-800-265-1914


Great Northern Insulation - Better Business Bureau Profile.

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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