Double Glazed Sash Windows in Cardiff, Newport and South Wales

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Wooden sash windows can be found in many homes throughout Cardiff and South Wales, they add to the integrity of the house and its surrounding area. Along with wooden floorboards, original fireplaces and decorative cornices; sash windows are one of the features that potential buyers are willing to pay more for.

But what happens when your beautiful windows are causing cold draughts and increasing your energy bills; time for an expensive renovation project?

Depending on whether your home is in a conservation area, you will have no choice but to replace your sash windows with like for like, either in upvc or wood. Many people are cautious about using upvc windows but there has been a great deal of improvement in the aesthetics of modern double glazed sash windows as well as the improved energy efficiency that these products offer. Vertical sliding sash windows now come in an array of colours that can offer a more sympathetic look to your home.

From a planning perspective the planners are interested in every detail of the window, a few points taken from Cardiff Council that you should consider when looking for quotes;

Section Dimensions

The size of timber sections in the new windows should match those of the original. This is

particularly important for the bottom rail of the lower sash which should generally be deeper

than the meeting rail on elevation when the window is closed. The visible part of the sash stile,

top rail and meeting rail should be of a similar width and depth.



Sashes close vertically and can be operated by sash weights or spiral spring balances. Spring

balances are unlikely to be acceptable if they replace box sashes on a listed building. It is

sometimes possible to fit hinges which can also allow a sash to open inwards for cleaning.


If a double glazed unit creates a substantial alteration in window size and dimension from the original, it is unlikely to be acceptable. It is usually impossible to install double glazed units in existing frames or to replicate existing frames with new sealed units without making drastic changes to the shape or proportions of glazing bars. Slimline double glazed units (3-10mm cavity) are now available that have much lower profile perimeter seals within the cavities.

This in turn allows for more slender sash frame dimensions. The use of highly insulating gases means that the energy savings offered by such units is comparable to standard double glazing (16-20mm cavity). Where the original windows have glazing bars, the new ones should match the original, particularly in multiple pane sashes.


Sashes with horns

Sash windows may have horns. These are additions to the lower part of the sash which enhance a window’s rigidity. Georgian and early Victorian windows rarely have horns but later Victorian and Edwardian sash with horns are common in Cardiff and often have decorative qualities that can be replicated in timber.

If your home is not in a conservation area, but you currently have sash windows, an increasingly popular option is to have casement windows with run through sash horns. An average upvc sash window will cost you upwards of £600 each for a reasonable quality product. A casement window with an equal split top opening sash and run through sash horns will cost from £400 upwards, quite a saving if you need to change all of your windows. The anthracite window shows a casement in this style.

To add to the traditional look, the addition of internal Georgian bars or external astragal bars is common in these styles of window.


If changing all of your windows and doors at one time is too expensive, why not consider replacing the front of the house first. We can advise you on the best options to suit your home and budget, call us on 02920 734573 or build your own online quote

Vertical sliding sash windows in Newport, Gwent

Replacing traditional sash windows in large Victorian properties can be an expensive project and dramatically change the look of your home. There are important factors to consider when deciding on the perfect window for your home; will the windows suit the style of the property, are the security features the best on the market and does the price offer value for money?

Vertical sliding sash windows now offer the style of traditional wooden styles with the security and energy efficiency of modern upvc double glazing. UPVC sash windows have the added bonus of being available in a choice of colours that will never need painting! One of the most popular additions to sash windows is the addition of decorative glass or georgian bars, these features blend perfectly with the elegant style of our products.

We have recently fitted replacement vertical sliders to a property in Newport which required it’s old wooden sash windows to be replaced. We replaced all 28 windows and the front door, during the installation we had countless comments on what an improvement the windows have made to the house. The customers are thrilled with the results and are happy that they chose Inspire Windows Ltd out of all the double glazing companies they spoke with in Newport and Cardiff. If you would like more information on our products, please give us a call on 02920 734573 or email us at

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Choosing the Right Windows for your Home

Windows come in many different forms, but which windows are right for your home? It’s an important consideration; all of our double glazing products are stylish and secure, but each different design has its own specific advantages. So what’s the most important factor for you?

If you favour an old-fashioned kind of beauty, then our Vertical Sliders are the ideal windows for your home. The sash window design has been with us for centuries, and our vertical sliders boast the same antiquated beauty as their Georgian predecessors, but don’t worry – they’re just as sturdy and secure as any modern window!

Still, if you’d prefer a more modern look, then perhaps you’d prefer Tilt and Turn Windows for your home. The big advantage of these windows is the dual opening system, which allows you to open the windows in two different ways. You can open them at the top, for ventilation that keeps the room secure, or you can open them like a door when you want the windows open a little further. The latter method also makes for a handy fire exit, so Tilt and Turn products might be the safest windows for your home.

That said, our UPVC Casement Windows are still our most popular windows, and it’s not hard to see why. Casement windows can be used in all kinds of different settings, and our UPVC windows are made to order, meaning that you can have more or less any window you want for your home.

Whichever product you opt for, rest assured that Inspire Windows will only provide the highest quality windows for your home. If you’d like to know more about any of our double glazing products or services, contact us today and we’ll tell you anything you need to know!

Vertical Sliders: Traditional Style, Modern Security

Vertical sliders (also known as sash windows) have been with us for centuries. They’re a common feature in houses from the Victorian era, and they’re generally thought of as a pleasantly old-fashioned alternative to casement windows and other more contemporary designs.

But while the sash window may be somewhat antiquated as a concept, rest assured that the vertical sliders we sell here at Inspire Windows are anything but obsolete. As with all of the products we use, our upvc sash windows are built to be as sturdy and as stable as possible. The double glazed panes provide an excellent level of insulation and noise reduction while ensuring that the glass isn’t easily broken, and our wide range of colours and styles means that you’ll most certainly be able to find your perfect windows.

A picturesque Victorian-style design shouldn’t be any less robust than a contemporary look, and our vertical sliding sash windows ensure that your old-fashioned interior is bang up-to-date as far as security is concerned. They’re a superbly secure choice for the home, and they look utterly lovely to boot!