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Good Reasons to Hire a Professional Insulation Contractor

March 28, 2016

When it comes to home improvement projects, there are few that will actually save money for a homeowner. In fact, most projects are cosmetic and are designed to contribute to a home's aesthetics. Home insulation, on the other hand, is different - it will significantly contribute to cost savings, both short term and long. And while many homeowners might decide to hire a general contractor (or a jack-of-all trades), the best outcome will be derived when hiring a professional insulation contractor to manage the entirety of the project. Homeowners have the impression that hiring a general contractor for an insulation project is an advantage just because the project seems so multi-faceted. But there's a better way. Why not go right to the source and hire a specialist from day one? Professional insulation contractors know their business - they know product and they know installation. And with a reputable company on hand, homeowners can be assured that the installers are certified and licensed in their work. In short, they're going to do the job right the first time. Insulation contractors don't just show up to install insulation. They have an understanding of the dynamics of air infiltration; they usually provide appropriate ventilation where required; and they know that vapor barriers are vital to any insulation project. In other words, they are experienced with the "building science" - and their objective is to deliver peak product performance. More than that, a good contractor will work with a homeowner to select the right product for the job, and the most cost-effective approach to the installation. There are countless types of insulation products on the market today. Each has a specific purpose, and each has advantages. For the experienced insulation contractor, the product must suit the job, and here, a basic explanation to the homeowner will set the stage for a collaborative working relationship. It's important, for instance, to understand the differences between batt insulation, blown-in insulation, and spray foam - each product will offer different benefits and each installation will have a direct bearing on the project budget. One aspect of home insulation that is often overlooked is the safe removal of old (and even deteriorating) insulation. This clearly requires expertise, since there may be a potential for hazard. In the event that there is asbestos or other harmful materials, it's absolutely imperative for this to be handled by a professional. The same thing applies to mold growth - it must be managed professionally and remediated correctly from the start. This is not the time for a "band aid" solution, and certainly not the right time for a do-it-yourself effort. Not to forget - home insulation is about conserving energy and saving money on utility bills. And in some situations, the cost savings can be dramatic. A professional contractor is expert in optimizing the home's energy efficiency, and consequently maximizing the savings on utilities during the winter and the summer. Best of all, a reliable contractor will advise on any incentives or rebates that are available in the industry. Indeed, tax credits and cash-back promotions can make a significant impact on the overall project budget.

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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