Glass And Glazing
Lifting glass by hand puts unnecessary stress on the pane that can lead to warping and visual defects. We assemble our units mechanically so that panes are lifted evenly using suction cups to ensure no part of the glass is placed under stress to maintain integrity and quality. We construct our units by a robot in an Argon filled chamber to ensure the only thing in our sealed unit is Argon. Other companies drill two holes into the frame and hand pump the Argon which can leave the unit filled with a mixture of air and Argon. By not drilling the frame we maintain the structural integrity and airtight seal of the frame. In the same way, when the warm air from the room meets the internal pane of glass the Argon gas slows the transfer of the warmth from the inside out.
Our team of expert craftsmen at Mitchell & Dickinson strive to minimise disruption and complete installations efficiently. Plexiglass is an excellent solution because it’s both shatterproof and stronger than glass, as well as being seven times more effective as an insulator. It can be scuffed a little more easily than glass, but this does not occur in normal use and can be polished out. More often than not it reduces, but is not guaranteed to eradicate, condensation. Being reversible and invisible from the outside, it complies with rules for listed buildings.
Silver coating must be enclosed within the glazing unit so that oxidation doesn't cause the degradation of the silver over time. With hundreds of options to choose from, Everest windows are designed to meet your needs. We use the best components to make quality windows that look good with attention to detail. At the core of everything we do, we're committed to developing the most energy efficient windows on the market with the lowest U-values in the UK. For large windows, such as 1200mm x 1200mm or bigger, you can place a couple of screws immediately below the secondary glazing panel to add support and prevent the chance of it slipping or detaching.
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.
While this is far from an exhaustive list, what we hope it highlights is that double glazing in and of itself isn’t an out-of-the-box product, it’s a technique, and the result of a specific manufacturing method. All three glass packages in the Planitherm range – Energy Standard, Comfort and Comfort Plus – can be used in either double or triple glazing applications. The section of the glazed units should be no greater than 12mm (two layers of glass + cavity). Slim profile double glazing will cost in the region of £600 to £800 to install in an average 6-over-6 sash window. Dependant on the cavity size, glass type and choice of gas fill typical thermal transmittance values between 2.0 and 1.6 W/ SqM/K can be achieved.