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Insulating Wine Cellars

June 18, 2016

In any wine cellar, large or small, the two most important factors are temperature and humidity. These will have a direct impact on the wine, and when out of sync, a negative impact. Today, most wine cellars operate with some type of "climate control" system to ensure that temperature and humidity levels are properly maintained. But none of this will be possible if the wine cellar is built incorrectly or insulated inappropriately. And if there's no vapour barrier (or a substandard vapour barrier) the chances of success for the wine cellar are greatly diminished. A wine cellar operates at peak performance when the temperature and moisture levels are in harmony. For this, wine cellar experts suggest Spray Foam Insulation as the preferred application when insulating the space. Once applied, SFI cures into a dense, rigid envelope that provides the ultimate in R-Value, while adding structural strength. SFI is a "code-approved" vapor barrier and air barrier, while it provides thermal insulation to the installed space. The big advantage with SFI is that one installation does it all - moisture control, air management, and insulation. The importance of balanced humidity cannot be overstated in a wine cellar. The humidity keeps wine bottle corks from prematurely drying out, and thus prevents them from losing their ability to seal. Humidity is essentially the amount of water vapor in the air - and regulated humidity is absolutely essential for quality wine storage. When a wine cellar is well insulated and provided with an effective vapour barrier, humidity levels will be better maintained and the cooling system will be better balanced. This is where Spray Foam Insulation can do the best job. As for installation, it's important to have experts do the work. For Great Northern Insulation, SFI is a highly specialized application. Installers are professionals, and with years of experience. They install to code, and they follow the manufacturer's product specifications. Spray Foam Insulation requires expertise with both product and application, and at GNI customer satisfaction is assured with every install. When it comes to wine cellars, the work has to done right the first time - anything short can comprise the integrity of the space and the stock of wine. Importantly, a spray foam application should not be approached as a DIY (do-it-yourself) project. It's work that requires product knowledge and installation proficiency. And it's work that has to be done the right way - otherwise, having to do a re-install could get costly and time consuming. Above all, wine cellars demand perfection when it comes to insulation, so having it done expertly makes abundant sense. Finally, Spray Foam Insulation is a premium product - it's not suitable for all project budgets, but no other product will perform as well for a wine cellar. For a wine connoisseur, the wine cellar can be a part time hobby or a serious collection effort. But whatever the case, it's not appropriate to cut corners when building, or sealing, or insulating. For the very best results, and for long term performance, Spray Foam Insulation is the way to go.

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935 Keyes Drive
Woodstock, Ontario
Canada N4V 1C3

Phone: 1-800-265-1914

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K2R 1H4

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6260 Don Murie St
Niagara Falls, ON
L2G 0B4

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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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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.


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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.


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