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Different Homes Require Different Insulation

February 10, 2016

Everyone lives differently - bungalow dwellers live mainly on one floor - others may have their sleeping quarters on the second floor - and still others spend much of their time in the so-called basement "recreation room". These are all lifestyle choices, and with them come different needs and priorities in terms of insulation. However, in every situation homeowner comfort is a priority and here, the choice of insulation will impact that comfort. For many, where the roof and attic remain uninhabited, the ideal solution may be a combination of blown insulation and spray polyurethane foam. It's an installation that effectively seals and insulates the entire space. Similarly, in a finished basement, a combination of spray polyurethane foam and fiberglass batts may be the best option. Certainly, where a home has unusual areas like a crawlspace, the very best is spray polyurethane foam. Because no two residential homes are alike, more and more insulation experts are suggesting spray polyurethane foam as a versatile, all-in-one application. For homeowners who are doing a renovation or retrofit, choosing the right insulation is critical, and this is where a reliable installer can provide good advice and viable recommendations. Needless to say, comfort is important but saving money on heating and cooling bills is also key.

Wall Cavity Insulation

Hard to believe, but some homes still have exterior walls with little or no insulation. Here, one of the better options for walls and siding is the drill-and-fill approach. It's a smart way of installing insulation without demolishing the wall. With a quality insulation product, R-Values are greatly enhanced, energy efficiency is dramatically improved, and indoor comfort enriched.

Attic and Roof Insulation

For the attic and roof, many contractors have been choosing blown-in cellulose insulation as their product-of-choice. The product is comprised mainly of recycled newspaper, and is treated to be fire retardant; undesirable to mould; and resistant to rodents and insects. Hence, an ideal option for the attic. For effective sealing, however, spray polyurethane foam is recommended.

Basement Insulation

Insulating the basement properly depends entirely on a quality insulation product, along with an expert install. Particularly in the basement, it's important to enhance thermal resistance; control air movement; and inhibit moisture from collecting. Here, a combination of spray polyurethane foam and fiberglass batts has delivered excellent results and seasonal utility savings. In the majority of homes, regardless of size and layout, it's the negative impacts of air movement and moisture collection that are important to address with insulation. And while many insulating products make claims and promises, very few offer the benefits derived with spray polyurethane foam. Best of all, spray polyurethane foam can deliver benefits with one application. For a good contractor, the advantages of the product and installation are clear: an insulated space can become totally airtight; undesirable airflow can be averted; and moisture can be prevented from accumulating. Indeed, this is true wherever the product is applied - the basement, attic, or walls. Overall, the cost savings on utilities will balance out the original project cost.

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


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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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