Secondary Glazing Windows

This optimum clarity is achieved by removing most of the iron oxide content used to produce glass. The improved clarity of low iron glass compared with clear float glass is barely discernible unless the two types of glass are viewed against a coloured background. Hack OutTo remove the old putty or beading or silicone on a window or door frame to reveal the rebate and install the replacement glass. Take care when cleaning acrylic and polycarbonate and do not use glass cleaner or similar products when cleaning, otherwise the secondary glazing may become dull. Check out our blog on cleaning acrylic and cleaning polycarbonate to see how best to clean your secondary glazing.

While double glazing offers significant insulation and energy efficiency benefits, it’s not the only option available to homeowners looking to enhance their property’s thermal performance. For replacement Windows those considering an investment in window upgrades, exploring all options can ensure you choose the most cost effective, suitable solution. CosyGlazing is Mitchell & Dickinson’s award-winning secondary glazing product, designed specifically for period and listed buildings. This unique insulating layer, made from plexiglass, provides warmth, comfort and an unobtrusive look.

ButylA synthetic rubber based sealant mostly used for the production of insulating glass units. Arrised EdgeA basic form of edge working, by removing the sharp edges of cut panes of glass. We recommend using a thickness of 5 mm when installing secondary glazing longer than 2 metres with Velcro tape, and when installing a window with a surface area of ​​2 to 3 metres. For secondary glazing where the longest side is a maximum of 2 metres, we recommend a thickness of 4 mm, which is the most common size. Our toggles only fit on a secondary window with a thickness of 4 mm. 4 mm thickness provides enough strength/stiffness to keep sheets up to 2 metres long stable. We have created this handy step-by-step guide to guide you through installing your secondary glazing.
Period properties tend to have unusually shaped windows that are often not level and, as a result, a DIY solution can be tricky to install. Your ironmongery and catches are modified to work with the CosyGlazing system to provide maximum efficiency. With our CosyGlazing secondary glazing in place, you will feel the difference in warmth and comfort of your home immediately. Employing specialists to fit your secondary glazing ensures a professional installation, which is guaranteed, and saves you the stress of doing it yourself. Double glazing minimises heat loss thanks to the gas insulation in the sealed unit and the two glass panels.

In monetary terms, replacing timber sash windows can often be an expensive affair. Installing secondary glazing on the other hand is a far cheaper and simpler process. The cost saving doesn’t stop there though, as our secondary glazing solution radically reduces heating costs by ensuring the cold weather remains outside.

This causes any unstable nickel sulfide inclusions (imperfections that may cause spontaneous breakage of the pane) to expand disproportionately to the glass, making the glass break. This is named after the modern process used to create large, thin, flat panels from molten glass which is floated onto a pool of molten metal such as tin. This process produces a very smooth sheet of glass with a highly consistent thickness. Secondary glazing is particularly suitable for use in conservation areas and listed buildings and will retain the original external appearance of your property. Available in uPVC, wood or aluminium, all with a range of colours and options.