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Understanding the Essentials of Basement Insulation

January 21, 2016

For most homeowners, insulating the basement is about keeping warm in the winter months and cool in the summer months. But there's more - basement insulation is also about energy efficiency for the entire house, and about energy savings from one season to the next. By any measure, insulating the basement is truly one of the better home improvement projects. Unlike other home improvements which are more cosmetic, basement insulation can deliver cost savings in the form of reduced utility bills. In other words, it's a home improvement project that can be "paid down" over a number of years. Like any other part of the home, product selection and installation are important considerations when insulating the basement. A reliable insulation professional can advise on which product is best, and which installation would be best suited. In fact, some basements may even need repairs prior to insulating, especially if there are water entry problems. Whatever the case, a professional contractor is highly recommended - someone who understands basement insulation and can deliver optimum outcomes. And today, many experts are suggesting Spray Polyurethane Foam as the ideal for basements. The bottom line with a well-insulated basement is to improve energy efficiency. This will quickly translate into reduced heating and cooling bills, as well as annual savings that can offset the cost of the insulation project itself. With Spray Polyurethane Foam, for example, the R-Value in the basement will be enhanced; airflow and air leakage will be averted; and moisture will be prevented from accumulating. All in all, the basement will be sealed and insulated for optimum energy efficiency and consumption. The home will be more comfortable and the savings on utilities will be notable. For basements, Spray Polyurethane Foam is unrivaled as an application. It will deliver more benefits in one install than any comparable insulation product. And for the professionals, SPF has become their product-of-choice. In terms of budget, however, SPF can be costly, and may not be a suitable option for every project budget. Here, a "hybrid" application could be the answer - a combination of SPF and another insulation product. It's an installation that is cost-effective and with excellent outcomes. As well, the "hybrid" application also allows for a reasonable "pay-back" period. The ultimate in basement insulation includes both the basement floor and the foundation walls. This approach goes well beyond any other installation, and allows for product performance that is truly unmatched. But whatever the final install, a professional insulation approach will provide a basement with the fundamentals. First, the space will be completely airtight and with no chance for air leakage. Second, there will be no possibility for moisture to collect. And third, the finished space will have the highest possible R-Value. In short, professional management will bring the best outcomes. As it is, Spray Polyurethane Foam is the best insulation product on the market today. Expertly installed, the long term benefits and annual savings make the upfront cost a worthwhile 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

Southwestern Ontario

7035 Industrial Drive
Comber, Ontario
Canada N0P 1J0

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

GTA East

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

TOLL FREE: 1-800-265-1914

GTA & 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


259 Campbell Street
Sarnia Ontario
Canada, N7T 2H3

TOLL FREE: 1-800-265-1914

Niagara Region

6260 Don Murie St
Niagara Falls, ON
L2G 0B4

TOLL FREE: 1-800-265-1914


Great Northern Insulation - Better Business Bureau Profile.


Best of 2017

From reputation to responsiveness, HomeStars consistently ranks Great Northern Insulation at better than 95% for customer satisfaction. Thanks to everyone for the great ratings! 

HomeStars 2018

Best of 2018

For the second year in a row, HomeStars consistently ranks Great Northern Insulation at better than 95% for customer satisfaction. Thank you again to everyone!

Homestars Best of 2019 Award

Best of 2019

For the third year in a row, HomeStars ranked Great Northern Insulation at better than 95% for customer satisfaction.

Homestars Best of 2020 Award

Best of 2020

For four years now, HomeStars has ranked Great Northern Insulation at better than 95% for customer satisfaction.

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

Enenrgy Savers

Energy Saving

Energy saving and energy efficiency is easier than one might think. Great Northern Insulation helps to identify performance issues, while taking advantage of improvement opportunities.

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

WALLTITE® ECO™ is a high-performance system, professionally installed by certified and approved specialists. Its C.C.M.C. approved (Canadian Construction Materials Centre) - with product quality guaranteed - and with installation by highly trained experts with the technical know-how to do the job right, the first time.

Insulthane Extreme

Insulthane® Extreme

For the ultimate in high performance spray foam insulation, Insulthane® Extreme is the professional choice for residential, commercial, and industrial application. With improved thermal performance over other products, Insulthane® Extreme has an exceptionally low Global Warming Potential (GWP). Considered environmentally friendly, this next generation spray foam insulation is non-ozone depleting, and exceeds specifications of other HFC product alternatives.


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).


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Professional, Certified and Insured

Baeumler ApprovedTM gives you peace of mind when connecting with contractors, trades and home service providers. All Baeumler Approved members have demonstrated high quality work for customers and other trade professionals. Members must also have Workers Compensation, liability insurance of at least $1,000,000 and prove professional certification.

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 Energy Conservation Program provides incentives of up to $1,600 to customers who achieve energy efficiency and fuel savings – 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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The GNI crew have been featured installing insulation on Love It or List It - have you seen our logo in an episode?

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