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What are the Benefits of Window Retrofits in Toronto?

March 15, 2018

Great Northern Insulation has recently started retrofitting windows with MAGNETITE. It lets you keep the original look and appeal of your existing windows but gives you the benefits of new windows. All at a cost that will make you and your investors happy.

Benefits of Window Retrofits in Toronto are Wide-Ranging

If you’re considering window retrofits in Toronto, then you likely have some structural issues or performance problems that need to be addressed. In commercial applications, window retrofits carry a number of dramatic improvements, and with the initial investment cost being significantly lower than window replacements, retrofits become a smart alternative. As a window retrofit solution, MAGNETITE window systems have proven effective for a wide range of commercial applications – from hospitals, to hotels, to schools, to office buildings.

Sound Proofing and Sound Reduction

Exterior windows conduct a high level of noise pollution. With MAGNETITE window retrofits, the “double-glazing” solution serves to reduce noise and provide soundproofing. When existing window systems are “single-glazed”, both air and noise can infiltrate. The MAGNETITE solution provides sealed windows with an insulated air cavity – both air and noise are blocked. The idea behind the retrofit is to create a “secondary system” that reduces noise transfer. MAGNETITE window retrofits are CSA® tested for practically zero air infiltration (and therefore sound).

Energy Conservation/Energy Savings

Exterior window glass can be the biggest point of energy loss in a building – and the most flagrant waste of heating and air conditioning. With MAGNETITE window retrofits in Toronto, energy loss is prevented and energy savings are optimized. The “double-glazing” solution is dramatic in terms of energy savings – a commercial building can recover initial upfront costs in a short amount time depending on the conditions of your original windows. With MAGNETITE windows, less energy is wasted and there is less demand on the HVAC system (heating and cooling). MAGNETITE is approved by CMHC (Canadian Mortgage and Housing).

Commercial Return-On-Investment

Bottom line, with professional window retrofits in Toronto, the MAGNETITE system can deliver excellent return-on-investment. With every building being unique, MAGNETITE retrofits allow for a fully customized window system that’s designed to accommodate a long list of building needs. With energy savings, soundproofing, and enhanced indoor comfort, the patented MAGNETITE system delivers superior return-on-investment when compared to other options. An insulation representative from Great Northern Insulation will assess the project, recommend the best retrofit option, and guarantee the performance.

Custom Designed Window Retrofits

When it comes to window retrofits in Toronto, MAGNETITE is the ideal customized solution. The patented window-framing system can be effectively retrofitted on virtually any existing building window. MAGNETITE can be custom designed for any window shape and size, and each window is custom fitted to magnetically lock into place. The finished install results in an airtight seal; enhanced thermal insulation; improved indoor comfort; and outstanding soundproofing. MAGNETITE windows have been tested/approved by CSA™ (Canadian Standards Association).

Building Aesthetics Remain Intact

MAGNETITE window panels are manufactured with optical-grade 100% virgin acrylic. Guaranteed not to yellow or discolour over long periods of time, the panels are fully backed by the manufacturer with a 10-year warranty. The beauty of MAGNETITE panels is that they remain out of sight – they are customized to fit a window’s size, shape, and style. There is absolutely no change to the original, aesthetic appearance of a building. If you’re considering quality window retrofits in Toronto, MAGNETITE is the ideal solution for commercial buildings of all sizes.

Ready to get a MAGNETITE quote from Great Northern Insulation? Book your free, no-obligation assessment online today.

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

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29 Ferndale Industrial Drive
Barrie, Ontario
Canada L4N 9V5

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2 Guided Court
Etobicoke, ON
M9V 4K6

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

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450 Industrial Dr,
Toronto (Milton), Ontario
Canada L9T 5A6

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Eastern Ontario

1035 Moodie Dr #1,
Nepean, ON
K2R 1H4

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Niagara Region

25 Lincoln Ave
St. Catharines, ON
L2P 2C7

TOLL FREE: 1-800-265-1914


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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™.


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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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