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Have you got a specific idea in mind for how you would like your double glazing to look? At GHI, we have a cast range of customisation you can choose from to help you make your new double glazed windows or double glazed doors personal to you and your Carshalton property. Before we talk about what advantages double glazing offers, it’s important to understand exactly what it is as this helps to explain what it does. Put simply, double glazed windows feature two layers of glass with a layer of gas sealed in the gap between them.
If your house does not have much background ventilation, look for replacement windows with trickle vents incorporated into the frame to let in a controlled amount of ventilation. Sash windows are common features of period properties and can be a design feature. They consist of two vertically sliding frames, but often don’t achieve an airtight seal, and are typically made of a single pane of glass. Listed buildings will require permission if you want to make changes to your windows. Old windows in historic properties can be protected, not only for their appearance, but also for the materials and methods used to make them. However, secondary glazing can be a non-intrusive way of insulating historic windows from the inside, and may be granted permission.

Yes, your CosyGlazing secondary glazing can be removed using suction lifts which are provided by Mitchell & Dickinson for all installations. You can then clean your original windows and the CosyGlazing units before popping them back on. When we re-engineer your sliding sash we will add weights to accommodate the weight of the CosyGlazing unit that is attached to the frame of your window using magnetic tapes.
Therefore when installing CosyGlazing, it is advisable to keep putty and paintwork in good condition. For casement windows, CosyGlazing sits perfectly either on the window frame, for a fixed solution. Or if you want your windows to open and close as they always have, we have developed modified traditional catches and stays to allow for the CosyGlazing unit to be fitted directly to the casement. This, together with concealed draught proofing routed into every edge of the casement, will ensure your casement window functions beautifully and keep you warm and cosy too. It’s a unique secondary glazing system developed and tested over many years that is elegant, effective and unobtrusive. We use plexiglass – a modern, lightweight equivalent to glass that’s used in the aeronautical industry – to provide a second layer to your period windows.

Secondary glazing is a cost-effective solution that involves adding an extra layer of glazing inside existing windows to improve insulation and reduce noise. It’s generally cheaper than replacing windows with double glazing and can lead to energy savings by reducing heat loss, which lowers heating bills. Additionally, secondary glazing is highly effective for soundproofing, making it valuable for those living in noisy areas like city centers or near airports.

However, exceptions may apply, especially in conservation areas or for listed buildings. We recommend checking with your local planning authority for specific guidance. Fixed sash and casement solutions sometimes require slight adjustment to the shutter positioning so that they work in conjunction with CosyGlazing.

Replacing sash windows can be expensive, so good-quality secondary glazing may be worth considering. Popular since the 1970s, double glazed windows provide excellent insulation and stop draughts. They have 2 panes of glass separated by spacer bars filled with air or gas, allowing daylight to enter and warm your home. The heat then transforms into infrared energy that can’t escape back through the glass, similar to the greenhouse effect. This process, known as solar gain, helps reduce energy bills and lower your carbon footprint by minimising the need for extra heating.
We install a specially modified catch/stay that can accommodate the CosyGlazing units on the window. You will still be able to open and close the windows as usual with our award-winning system. With those aims in mind, along with our mission to be as environmentally friendly as possible, we created CosyGlazing, our advanced secondary glazing system.
Energy efficient glazing reduces condensation build up on the inside of windows. Your property’s front door sets the stage for everyone who enters through it. Thanks to our flexible manufacturing facility, we can supply you with find a glazier near me truly bespoke product that perfectly matches your home’s design. Whether you require a front door, a sliding French door or something in between, we can supply you with precisely what you are looking for, at a price you can feel great about. Ensure that you are getting gas between the two panes of your double glazing such as argon, xenon or krypton. In most cases, secondary glazing is considered a "permitted development" and doesn’t require planning permission.
Our engineers can also replace broken hinges, handles, seals, and locks. Plus, our glazing products are backed with an industry leading 25 year guarantee. The signature of the Victorian terrace is the bay window on the downstairs living room that features wooden sash windows. Over time, many of these windows have been replaced by cheaper uPVC casement windows and the elegant finish of the original sash has been lost. We offer many customization options to make ordering replacement sealed units as easy as possible.