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Sash Windows UK: Sash windows provide an elegant, period look to any home in UK and can increase the value of your home with their authentic style and charm. If you have a need to replace your current sash windows, the contemporary versions will be every bit as good as the original windows, and if you are living in a period property, a listed building or your home is situated in a designated conservation area, due to local regulations, sash windows may be your only replacement option.

To make sure your brand new sash windows precisely fit your needs and observe any laws regarding listed building and conservation area considerations, a local UK glazing company will hand-make your sash windows in the same way that they have been made in the past. Using sustainably sourced timber in soft or hard wood varieties, that are recognised for their robustness and anti-rot capabilities, a trained craftsman will expertly fashion your windows. Unless of course, you would prefer the more contemporary look, with attractive uPVC, composite, aluminium framed sash windows which integrate seamlessly with the design of your house in UK.

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The principal distinction between casement windows and sash windows, is that sash windows do not use a hinge mechanism to open, they slide. Two windows are installed with one, or both, able to slide vertically behind the other. Counterbalances and sash cords keep the window in position allowing the window to be opened to any size gap, without slamming shut. The classic sash windows did not move in any other direction, but modern versions allow for vertical or horizontal (called Yorkshire Sash) movement, along with offering the possibility of tilting for simpler cleaning.

An important benefit of a sash window over a casement window is its superior method of ventilating a room. You can establish a convection flow of air within your home, with cool air entering through the gap at the bottom, and warmer air escaping through the gap at the top, in sash windows where both the bottom and top sash can be moved. This gain is especially valuable in summer months and helps to improve the levels of personal comfort around your house in UK.

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Increased security for traditional sash windows gives reassurance for property owners in UK, by the use of threaded bolt screws, locks, reinforced or double glazing and stops to prevent any unauthorised opening of your windows. Fitting a frame to frame sash lock is one of the most effective types of security for a sash window in UK. This uses a bar or bolt which fastens the upper sash to the lower frame and prevents either window from being opened. Because would-be intruders cannot access it from outside, security is further enhanced.


If your current sash windows in UK have incurred damage or no longer work properly, then it's time to think of either restoring or replacing them before they get even worse. To find out if it's viable to refurbish your current windows, or replace them with brand new sash windows, you will need to seek the professional advice of your local UK sash window installer.

Any refurbishment of your current sash windows in UK will normally involve removing them from the frame for work to be accomplished. It might be as easy as scraping off a few layers of paint which have built up over the years, or possibly if the window glass is draughty and rattling, the frame may require tightening up in a specialist jig. A professional UK sash window company should offer an inspection service of your windows and frames before giving advice on possible procedures to resolve your problems. Remember that, while in theory virtually any sash window can be refurbished; be it snapped cords, loose corner joints, rotten frames, shattered glass etc, to all intents and purposes there's a balance between what is feasible and what's economically the best option.


It can be baffling if you browse online or in a sales catalogue at the multifarious types of sash windows that are available. If you just consider the 3 principal designs, essentially: Georgian, Victorian and Edwardian, it will be more straightforward. Each of these three patterns has their own individual variations which can be modified for the style of your particular property in UK.

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Georgian - The typical design of the Georgian is "six over six", meaning that it features 6 independent panes in the top sash, over 6 independent panes in the bottom sash. There is a Georgian-variant which sees a window which can have different sizes of pane in the top and bottom, as long as one of the sashes consists of 6 panes, while a Half-Georgian is a modification of the Georgian with a single pane in one half, and 6 panes in the other.

Victorian - Featuring a two over two design which may also include a centre bar, the Victorian style of sash window has also got adaptations like asymmetric (3 over 2, or 2 over 3 etc).

Edwardian - Featuring a six over two configuration, the Edwardian has a quite similar look to the Half-Georgian style of sash window.

To figure out which would be the perfect design for your property in UK, you can get in touch with a local window installer, rather than racking your brain going over all these different versions.

All these sash window patterns can be made for different styles of window, i.e. couple or bay windows, as well as for any window sizes. What's referred to as the Yorkshire Sash is the fourth and final important kind of sash window. Integrating with any of the 3 principal elements and their variants, this type is a window that slides horizontally.

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Sash windows in earlier times, only featured a single pane of glass. You might have to replace your sash windows with some having a similar arrangement if your home is a listed structure or your property is located in a protected conservation area. Modern developments allow for toughened glass with superior thermal qualities over the original glass, to be used. This will permit you to maintain the overall look of your property when exchanging your sash windows.

In order to abide by the the restrictions for the UK area, you need to contact an established local sash window installer, who will also provide you with the optimum and most economical materials which are needed to complete the job. Where a conservation officer or local council insists on the restoration of existing materials, it might be required to complete a window by window inspection to reduce any impact on the structure. In order to compile a report for the planning officer, an experienced sash window company will conduct this inspection and supply technical drawings, essential replacement works and information about your renovation project.

An upgrade to your sash windows in UK might be possible by using a secondary glazing option. By adding a vertically sliding secondary glazing pane inside your sash windows you can improve your thermal efficiency, stop condensation and reduce noise transmission. The introduction of secondary glazing helps to preserve the traditional character and integrity of the building and can normally be accomplished even if you're restricted by planning regulations in the case of a listed building.


There are a number of companies in the UK area, that can provide you with a sash window installation that will last for many years to come. Where possible, you can friends and neighbours for recommendations of window fitters in UK. From the potential companies, make an effort to obtain a minimum of three estimates. Membership of either the TGAS (Glazing Arbitration Scheme), FENSA (the Fenestration Self-Assessment Scheme) or the GGF (Glass and Glazing Federation), should pretty much guarantee a company's skills and competence in sash window and glazing installation. There are numerous advantages to employing a sash window installer in UK who is a fully-fledged member of at least one of these trade bodies, including guarantees in case of faulty craftsmanship and methods of obtaining mediation in case of legal procedures due to substandard products.
Created: 2021, January 23

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