Videos

Some of these include Gas-Filled Cavities, latest frame materials and use of advanced glass. If you want to lower costs of heating in areas of extreme cold then you must opt for a triple glazed window to keep the rooms comfortable and warm. No one offers a bigger choice of original designs for patterned/textured glass, in fact, you can choose from a range of 21 designs from traditional to contemporary. You'll be able to complete your project with an industry-leading secondary glazing solution. Granada-approved installers are trained and accredited by us, or you can employ your own fitter. Our manufacturer warranty is standard on all products, in addition to the installer’s warranty.
Try to avoid handling the area that will be glazed, especially with dirty/oily hands. Oil or dust can work almost like a resist, preventing the glaze from sticking to the pot and potentially causing crawling. Applying glaze is only a small portion of glazing, there are several other aspects that it’s important not to overlook if you want consistent results.
If you find cheaper like for like uPVC windows elsewhere, we'll match the price. Our products are made from start to finish in a British factory by skilled craftspeople. Terms & Conditions.We continuously wish to improve and we kindly inform you that all incoming and outgoing phone calls may be recorded for quality and training purposes©2025 Duration Windows. Duration Windows is one of the UK's leading specialist aluminium trade manufacturers. Choose to have your Retro Panes professionally fitted by our team, or opt to install them yourself using the provided instructions, our video guide, or contact us for instant support. Our survey team will schedule a visit to assess and measure your windows.

Astragal Window BarsGrille intended to replicate the look of a True Divided Light unit; consists of an interior grille, exterior grille and spacer between the glass panes. Obscure GlassAny type of glass with uneven surfaces which offers light diffusion and privacy. Insulating glass UnitsInsulating glass is a multi-glass combination consisting of two or more panes enclosing a hermetically-sealed air space. Fire-resistant glass – fire-insulatContains flames and inflammable gas for a longer period of time and prevents not only the transmission of flames and smoke but also of heat to the other side of glazing. Fire-resistant glassSpecial type of glass designed to contains flames and inflammable gas for a longer period.

Secondary glazing traps this water in the void, which can cause condensation. Therefore when installing CosyGlazing, it is advisable to keep putty and paintwork in good condition. It’s a unique secondary glazing system developed and tested over many years that is elegant, effective and unobtrusive.

This coating reflects the heat generated inside the home back into the room, rather than allowing it to escape through the window. At the same time, it allows optimum amounts of sunlight to pass through the window. Our Advance glass boasts a neutral appearance and a centre pane U value of 1.1W/2mK. Whilst a G value of 50% still allows for maximum solar heat gain into the property through the glass extension. Advance comparable thermal benefits to triple glazed sealed units but is much lighter meaning less strain on hinges and moving mechanisms and is a much more cost effective solution also. Secondary glazing enhances thermal insulation, reducing heat loss by up to 70% and improving energy efficiency The amount of heat saved depends on factors like the quality of installation and the type of material used.
They're ideal if you're looking for the most window for the price and if you love big panes that bring in lots of light. Mondrian glass extensions framed with steel profiles to create a Bauhaus style glazed extension. Ring beamThe beam above the window frames of the conservatory supports the roof. Lean-to conservatories are quick and easy to install and can be a practical and less expensive solution.
Additionally, laminated or thicker glass on the secondary pane can further enhance sound insulation. This makes it a popular choice for homeowners seeking to improve comfort without compromising the aesthetics or integrity of period features​. Secondary glazing offers multiple key features that enhance window performance, including significant sound insulation, improved energy efficiency, and condensation reduction.

We may share your personal data within the NSG Group and this will involve transferring your personal data outside the European Economic Area (EEA). We may have to share your personal data with the parties set out below for the purposes set out in the table in paragraph 4 above. If we need to use your personal data for an unrelated purpose, we will notify you and we will explain the legal basis which allows us to do so. We have set out below, in a table format, a description of all the ways we may plan to use your personal data, and which of the legal bases we rely on to do so. We have also identified what our legitimate interests are where appropriate.
New technological advancements offer improved thermal insulation, noise reduction, and security features. Upgrading can significantly enhance energy efficiency, lower heating and cooling costs, and increase property value. Triple glazed windows and doors simply use three panes of glass within a sealed frame, instead of two.