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Upgrading Your Insulation - When Is The Right Time?

April 07, 2017

At Great Northern Insulation, homeowners often ask about the right time to upgrade insulation. Clearly, there are different answers for different circumstances, but in every case, it all starts with a comprehensive assessment of the space. For the experts at GNI, its important to advise every customer on the best approach to upgrading insulation, while recommending products that best suit the circumstances. And this is exactly where an accurate assessment can be most valuable. New homes or old, there are various reasons for upgrading insulation, or for that matter, entirely replacing insulation. In some homes, existing insulation may be lacking in certain areas. In some situations, the original installation may have been inadequate or improper. And finally, there are homes where insulation is deteriorating for one reason or another. Here, GNI can assess and evaluate the current condition, while making viable recommendations for repairs or retrofits.

Determining where there is need to add or replace insulation

A proper assessment determines the condition of existing insulation, and overall performance. This is where an Energy Auditor can be valuable, assessing a home's insulation with respect to the home's overall energy efficiency. This type of Home Energy Audit will pinpoint areas where insulation requires upgrading or replacement, and where air sealing would be necessary.

Using a do-it-yourself approach to inspection & assessment

Much like other home improvements, a DIY approach to insulation might seem like a good option for some homeowners. However, it's the experts who understand the nuances of insulation, and who have the inspection tools to accurately gauge energy efficiency and performance. A thorough assessment will set the stage for identifying vulnerable areas that require upgrading.

Understanding R-Values and where upgrading can be helpful

Using industry guidelines, an Energy Audit can gauge existing R-Values, and establish how best to achieve optimum insulation performance. At Great Northern Insulation, trained installers decide which insulation product would be best in a given space, and how to achieve maximum efficiency for the homeowner. The bottom line, of course, is to reduce energy use and utility costs.

A comprehensive approach to upgrading home insulation

With a reliable Home Energy Audit, vulnerable insulation points are identified, whether located in the attic, the basement, or in the exterior walls. More than just insulation, it's also important to isolate areas of the home that require better air sealing, as well as enhanced ventilation. Proper sealing and ventilation are integral for new insulation to deliver peak performance.

Determining the right insulation for upgrading/renewing

The professionals at GNI are trained and qualified to recommend the product/installation to best suit the job. GNI installers understand which insulation product will work best in a given space. They appreciate the importance of air sealing, and understand how to guarantee optimum energy efficiency for the building envelope. This is where expertise delivers the best results. For products and installations that deliver long-term results, Great Northern Insulation can recommend an approach with the best return-on-investment. More information is available at www.gni.ca or by calling toll-free 1-800-265-1914.

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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