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When it comes to attic insulation in Mississauga, and throughout the suburban communities of the GTA, it’s best to choose insulation specialists – and the people at Great Northern Insulation are those specialists. They can tell you which insulation solution is the right one for you, and they can install what they recommend. The truth is, there may be a situation where insulation is just not required. At GNI, we want to insulate your home properly, and provide the cost-effective solutions to meet your needs and your budget. Above all, we want to make sure that your insulation issues have been resolved, and that the long term benefits can be realized.
We strongly believe in a comprehensive approach - a home, building, or office that is well sealed, well insulated, but also well ventilated. This is an approach that is all-inclusive – it’s something that insulation professionals in the industry refer to as a “truly insulated building envelope”. For the homeowner, it translates into well-managed heating and cooling, reduced and/or dampened sound, and enhanced performance of the overall indoor environment. For GNI, it also means that the insulation is not enough on its own – we encourage the use of air barriers (to keep air out); vapor barriers (to keep moisture down); and appropriate ventilation (to ensure balanced air circulation).
During the “good old days”, insulating the home was not a big deal - there was not much concern about the cost of heating, nor much discussion about energy savings. The main concern was keeping the home warm during the winter, and cool in the summer (note that most people didn’t have AC). In general, homes were drafty, upper floors were warmer than lower floors, and air circulation was not an issue. Today, most homeowners want total comfort - an indoor environment that is warm in the winter, cool in the summer, and balanced throughout the year.
At GNI, we consider insulation as a complete system, and understand that every good system has to be both practical and effective. Air barriers (whether they be existing, or newly installed) must be optimized to prevent indoor/outdoor air movement. Every cavity must be filled, with no gaps, cracks or crevices remaining. And finally, a vapor barrier (polyethylene sheeting) must be installed to prevent the collection of moisture and potential condensation. In the end, adding the right attic insulation product will deliver the best return on investment, making the most economic sense.
Deciding on how best to insulate the attic requires thought and consideration. Just hiring a local contractor to blow in some loose fill insulation over your existing insulation is short-term thinking. As mentioned above, it’s not just about insulating - air and moisture control must be considered; air circulation and ventilation must be thought out; and the overall indoor environment must be addressed. Indeed, the way the insulation is applied and installed plays a large role in its integrity. The bottom line: a bad install will cause R-values to be reduced – and that comes from improper application of a particular insulating product; poor coverage of cavities and air spaces; and sub-standard air-sealing techniques that result in uncontrolled air movement.
Throughout the industry, spray foam insulation is considered the best option amongst all insulation products. The product is made of polyurethane foam, and is sprayed into the attic with special equipment (it’s also used inside walls, under floors and above ceilings). The foam is sprayed as a liquid, and transforms into a hard, dense substance that expands as it fills. The two types of spray foam products commonly used are the “open cell” foam, and the higher density “closed cell” foam. “Open cell” foam is less expensive, provides an excellent air barrier, but does not act as a water vapor barrier. The “closed cell” foam is denser, provides an excellent air barrier, and also acts as a water vapor barrier. Clearly, the “closed cell” foam is the ideal product for attic or roof.
Fiberglass “batt” insulation has been a popular option for the attic for many years. They are heavily promoted every fall and continue to have a following. The “batts” are available in convenient pre-cut panels, usually fabricated of fiberglass, but also available in other fabrications. Fiberglass “batts” are considered a less expensive insulating option – they are easy to install, and deliver an acceptable standard of energy efficiency for the long term. However, installation of “batts” must be very exact, with total and complete coverage – otherwise, the install will not deliver the maximum insulation value. The final install must be “super-tight” any gaps will dramatically affect the heating and cooling balance throughout the home. Needless to say, air barriers and vapor barriers must be part of this install.
Another option for the attic is blown-in insulation. With a good number of advantages, the two common choices for blown insulation are cellulose and fiberglass. Both products are designed for the attic, and both have insulation values that are similar. However, the industry experts maintain that the cellulose product will deliver an R-value that is slightly higher (values are measured per-inch). Cellulose has a tendency to settle over long periods of time and this can affect its insulating value. As for fiberglass, manufacturers assert that their product does not settle. Both cellulose and fiberglass are fire resistant: the cellulose is chemically treated to be fire retardant (stops the spread of fire), and fiberglass, because of its glass content, already has a very high fire resistant nature.
If you’re in the market for attic insulation in Mississauga, Great Northern Insulation is worth considering. We make sure to use only the highest quality insulation products, and we always pass product warrantees through to our customers. GNI installations are also guaranteed, regardless of product, and regardless of the size of the job. We strive to do the job right the first time. And for us, doing the job right means doing the job completely – with the proper air sealing and draft proofing; with the appropriate vapour barriers; and with air vents and/or exhausts that ensure optimum ventilation.
935 Keyes Drive
Woodstock, Ontario
Canada N4V 1C3
Phone: 1-800-265-1914
Fax: (519) 539-7946
TOLL FREE: 1-800-265-1914
7035 Industrial Drive
Comber, Ontario
Canada N0P 1J0
TOLL FREE: 1-800-265-1914
1027 Elwell Park Road
Gravenhurst, Ontario
Canada P1P 1R1
TOLL FREE: 1-800-265-1914
29 Ferndale Industrial Drive
Barrie, Ontario
Canada L4N 9V5
TOLL FREE: 1-800-265-1914
103 North Port Road
Port Perry, Ontario
Canada L9L 1B2
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450 Industrial Dr,
Toronto (Milton), Ontario
Canada L9T 5A6
TOLL FREE: 1-800-265-1914
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
6260 Don Murie St
Niagara Falls, ON
L2G 0B4
TOLL FREE: 1-800-265-1914
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!
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!
Best of 2019
For the third year in a row, HomeStars ranked Great Northern Insulation at better than 95% for customer satisfaction.
Best of 2020
For four years now, HomeStars has ranked Great Northern Insulation at better than 95% for customer satisfaction.
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.
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.
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.
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Great Northern Insulation is recognized as Canada's largest full-service insulation contractor. GNI is 100% Canadian owned, proudly serving Ontario customers since 1980.
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
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
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.
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