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Making the Basement Livable, Comfortable and Energy Efficient

June 10, 2015

In any home, of any size, the basement space is far too valuable to go to waste. It can easily be used as an additional living room, an extra bedroom, a home office, even a fully self-contained "in-law suite". The important thing is to make it functional and usable. But at the same time, it must be comfortable. And the key to comfort is good insulation - a properly insulated basement is cozy and comfy in the heat of summer and in the cold extremes of winter. Energy conservation is also part of the mix, and with ever-increasing utility costs, saving energy and saving money goes hand-in-hand. With this in mind, insulating the basement has become as critical as insulating other parts of the house. In fact, a basement insulation project might well deliver more in terms of return-on-investment than other, more aesthetic, home improvement projects. The benefits are countless and the payback is meaningful. Insulating the basement with a high quality product is key to conserving energy. A good install will enhance thermal resistance; inhibit indoor/outdoor air transfer; and prevent the accumulation of moisture. The well-insulated basement will also allow the HVAC equipment to operate with greater efficiency, both winter and summer. Bottom line, it means improved energy conservation, and cost savings on seasonal utilities around the year. For the ultimate in basement insulation, the professionals recommend spray foam. It's an application that will encase the basement entirely and serve a number of purposes with one single installation. Properly applied, spray foam acts as an all-in-one air barrier, vapor barrier, and insulator. No other product can seal as well, and no other product can deliver such a high R-Value. It's no wonder that so many experts are recommending spray foam. When it comes to basement insulation, the focus should be on creating an airtight space. And here, the very best outcomes derive from spray foam insulation. Nothing on the market provides the same benefits in one installation. Spray foam is a premium product with a premium installation, and may not suit every budget. But in terms of cost-benefit, the payback period is quite reasonable, and the annual savings on utility bills are significant. Another excellent option for basement insulation is the so-called "hybrid" approach. This is an install that combines the spray foam product and fiberglass "batts" in one application. Here, the spray foam product is installed first, followed by an accompanying installation of fiberglass "batts". The two products compliment each other, and provide excellent long-term benefits. Most important, this "hybrid" approach is very cost effective. Insulating the basement is a major undertaking. That's why it's so important to do it right - with a high quality product, and an expert installation. And while spray foam insulation is undoubtedly the best approach, the "hybrid" approach is an ideal second option. The spray foam provides the sealing and insulating, and the "batts" provide enhanced R-Value. Together, these products deliver superb value, and excellent return-on-investment.

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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