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Keep Warm in the Winter with Insulation from GNI

December 04, 2019

keep warm this winter with insulation from GNI

The cold, snowy months of winter are always inevitable. Like a lot of people, you might struggle to keep your house warm during these months without breaking the bank. With winter insulation from GNI, you can easily reduce your energy costs and live in a more comfortable home all year long. Also, with our insulation consultants by your side, you can be sure that you are targeting the right upgrades to help you keep warm for the lowest upfront investment cost.

When a home has been upgraded with professionally installed winter insulation, you experience a number of benefits. The energy efficiency of the home improves, meaning lower utility bills and less stress placed on the furnace / HVAC systems. The home also becomes easier to keep at a comfortable temperature, and has improved air quality - leading to a lower risk of sick building syndrome. And it also has a higher market value, since homes that have been upgraded for energy efficiency are well valued by potential homebuyers.

To help homeowners get started on making any type of home upgrades - whether that involves installing new winter insulation to keep warm during the winter, or simply adding a bit of air sealing - GNI offers free in-home assessments from our expert insulation consultants. This provides you with a solid foundation for making home improvements, and our consultants are happy to answer any questions you may have about the energy performance of your home. To schedule your appointment for a free in-home assessment, please contact our Customer Experience Team at 1-800-265-1914, or online at www.gni.ca/contact.

What is the Stack Effect? Will Winter Insulation Help?

The stack effect is a term used to describe how air flows within a building. When it is cold outside and you are trying to keep warm, the stack effect can make it harder for you to keep your home at a comfortable temperature. As the warm air inside a home rises, it eventually finds a way to escape through unsealed air leaks within the home’s attic. This causes cold exterior air to be pulled in through any unsealed cracks in the basement or foundation, in order to replace the air that has escaped through the attic.  

In the summer months, the opposite effect occurs. Cold air conditioned air sinks to the bottom of the home and finds air leaks in the basement where it is able to escape. This causes hot and moist air to be pulled in through cracks in the attic in order to replace the air that was lost. Whether it is the summer or the winter, the stack effect has the ability to negatively impact the energy efficiency and comfort levels of an entire home.

However, with professionally installed winter insulation, along with air sealing upgrades, any homeowner can effectively control the stack effect within their home - working to reduce energy costs, unwanted drafts, and improve comfort levels. With air leakage testing from GNI, you can easily target the exact areas of your home that need the most attention, allowing you to reduce the impact of the stack effect directly and avoid having to go on a wild goose chase to find the air leaks that are causing a problem.

Spray Foam Upgrades Help You Keep Warm Everyday

One of the most effective products for winter insulation is spray foam. With its extreme versatility, and its ability to provide strong thermal protection and an air barrier all in one, spray foam makes for a fantastic choice when making cost-effective home upgrades. If a homeowner is looking to improve their home’s winter insulation and level of air sealing, spray foam is often the number one choice recommended by our team of experts.

When you work with GNI, you can be sure that you are targeting the right upgrades specific to your home, while taking your goals, budget, and timeline into consideration. In terms of using spray foam for winter insulation, GNI can easily show you its benefits and costs for each application in your home. That means you can get a clear idea of how installing spray foam will improve the quality and affordability of your living space, and how it works to keep you warm each and every day.

To go one step even further towards targeting the most cost-effective upgrade options in your home, GNI will arrange for you to have a home energy audit conducted by a registered energy advisor. With a home energy audit, you receive a complete and in-depth look into the energy performance of your home, along with a list of upgrade suggestions that detail how you could most cost-effectively improve the energy performance of your home in particular. In other words, you are presented with a list of potential upgrades that include the benefits, costs, and expected returns of each individual suggestion - making it easy for you to see which upgrades will provide you with the biggest improvements for the lowest cost.

Prepare for Rising Energy Prices with GNI’s Rebate Experts

Currently, Ontario homeowners have the Home Efficiency Rebate program available to them; helping to make it more affordable for homeowners to upgrade their home’s energy efficiency. A total rebate of $5,000 is attainable, but in order to qualify, homeowners need to be customers of either Union Gas or Enbridge Gas, and have two home energy audits conducted (one before any upgrades start, and one after they have finished).

The Home Efficiency Rebate program offers insulation rebates
As energy prices rise or fluctuate, the effectiveness of strong energy efficiency becomes more apparent. The less energy that your home needs to consume in order to maintain a comfortable temperature the better, as it means that you will be less affected by any changes in energy prices. In terms of installing new winter insulation, the Home Efficiency Rebate program can make it even easier for you to see a return on your investment through energy savings - especially if energy prices rise any time in the future.

In many cases, the best rebates can be easily attained through spray foam upgrades and air sealing improvements, but for many homeowners who are looking for strong winter insulation to help them keep warm, they often use a combination of upgrades that specifically target the areas of their home that stand to see the biggest improvement. GNI’s expert consultants can help you determine the exact combination of upgrades to help you keep warm all year, improve your market value, and reduce the impact of rising energy prices.

If you have any questions about the benefits of winter insulation from GNI, or about the Home Efficiency Rebate program and how it helps to make home upgrades more affordable for Ontario homeowners, please contact our Customer Experience Team at 1-800-265-1914, or through the web at www.gni.ca/contact. Once you are in touch with a member of our Customer Experience Team, you can also schedule a time for a free in-home assessment to help you get started on your upgrades.

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™.


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?

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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