Why Secondary Glazing will Save the World | Glaze & Save

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It’s no secret that we’re pretty crazy about secondary glazing at Glaze & Save. We produce InvisiTherm, a bespoke polycarbonate magnetic secondary glazing system that might just be the best in the world (I know, we’re so modest!).

In celebration of yesterday’s World Environment Day 2017, we’re going to look at how secondary glazing really could save the planet…yes really!

Increased Energy Efficiency

It’s no secret that we’re facing an energy crisis; in recent years energy efficiency has become a necessary buzzword as gas and electricity bills skyrocket and fossil fuels become a less stable source of energy. One of the main ways we can increase the energy efficiency of our homes is by making our windows and any other glazed areas as thermally efficient as possible.

Secondary glazing, and InvisiTherm in particular, is exceptional at reducing heat loss from windows. InvisiTherm can achieve heat loss reduction through single glazed windows of around 63%, representing around a 22.5% saving on your energy bills.

With the right installation, this method will keep your house warm during cold seasons and can go a long way in reducing your energy bill and adding value to your home for potential buyers.

Secondary Glazing is More Environmentally Friendly than other Options

Not only does secondary glazing help reduce your energy consumption, it also encourages resource efficiency by supporting you to keep your original windows instead of the more wasteful process of replacement. Your original windows will almost always be comprised of better quality and more durable materials than replacement windows: no matter how expensive they may be! The sad fact is, many people tear out their original 100 or 200 year old windows and replace them with windows that may only last 10 or 15 years, thus ensuring the cycle of wasteful replacement. Choosing a greener solution like InvisiTherm secondary glazing not only stops this cycle, but InvisiTherm itself is made from a highly sought after recyclable material. If you ever decide you no longer need your systems, Glaze & Save will collect your systems and recycle them into fuel poor households.

Secondary glazing reduces construction waste

Not only does secondary glazing encourage the retention of original windows, but systems such as InvisiTherm are perfect for the retrofitting of historic and hard to treat buildings, saving them from disrepair and demolition, saving resources and energy.

It’s no secret that historic buildings are often left to ruin because of expensive maintenance bills, difficulty in treat windows and doors, and the expense to heat. Because InvisiTherm ordinary requires no planning permission, and can be fitted discretely over any type of glaze, it makes for a great option for listed and historic buildings. Then, once the system is fitted, even in unheated rooms a temperature increase of five degrees Celsius can be achieved, regulating temperatures and allowing the buildings to benefit for a warmer, drier environment.


So there you have it, just a few reasons why secondary glazing might just save the planet. If you’re interested in finding out more about World Environment Day check it out here, and if you’d like more information about Glaze & Save InvisiTherm you can email our office at info@glazeandsave.co.uk

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