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Attic Insulation Is Worth Doing Right The First Time

January 18, 2016

In most of Canada, and much of the northern United States, weather extremes are the norm. These are regions where residential homes require heating in the winter and cooling in the summer. And because energy costs are usually rising, energy efficiency is vital in keeping utility bills down. Bottom line, energy efficiency is reliant on proper insulation. So in a space like the attic, choosing the right insulation products and installation methods is essential for success. Attic insulation should not be about packing the attic with enough insulation to fill the space. In fact, overdoing insulation in the attic may affect ventilation in a way that disturbs air movement, and defeats the whole purpose of insulating. At the same time, any professional will assert that sealing the attic properly is essential to the insulating process. It means that all holes, gaps and cracks must be completely sealed so that the insulation barrier performs to the max. While its true that a DIY approach to attic insulation is promoted by many home centers, the typical homeowner is actually disadvantaged - product knowledge is weak and installation expertise is lacking. On the other hand, the professionals understand the insulation product being installed, and are well acquainted with the installation techniques that will deliver the best possible results. Whatever the approach, attic insulation is best installed by an expert. Depending on the product being installed in the attic, there may be a need to install a vapor barrier prior to insulating. This is critical for moisture control and is particularly important in a space like the attic. Here again, an experienced insulation contractor will install the right product with the proper application - it's an approach that will ensure optimum outcomes for the long term. Indeed, hiring a professional far outweighs the savings of a DIY (do-it-yourself) job. Choosing the right attic insulation can be a challenge. Every product on the market is advertised as the best, and every contractor in the neighborhood is the finest. The truth is, a good insulation professional will provide the homeowner with the essentials: top-quality insulation products; superior installations; superb customer service; and warrantied workmanship. Its with this type of approach that an attic insulation project is done right the first time. Done properly, a professional attic installation ensures effective insulation, improved air circulation, and enhanced home comfort. More importantly, energy efficiency throughout the home translates into measurable savings on heating and cooling costs throughout the year. In short, attic insulation is one of those home improvement projects that provides short-term homeowner benefits and long term dollar savings - initial project costs can easily be "paid down". Whatever the choice of product or installation, attic insulation is best handled professionally. Large project or small, everything depends on effective sealing, proper ventilation, and appropriate insulation. And for the professional contractor, its a "system" that works in tandem, and ensures the maximum in energy efficiency. After all, saving on ever-increasing utility costs is primary.

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).


Baeumler ApprovedTM
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™.


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?

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