Casement windows

Casement windows have a long British and European history. They were popular in the UK long before the Victorian era and have stood the test of time. Casement windows were traditionally made from metal or timber, but now there are so many new options for material. Our range of casement windows are designed to replicate the style which has been seen throughout history whilst offering new standards of security, energy efficiency and style.

Quickslide’s casement windows offer high levels of security and energy efficiency. With stunning designs in modern low maintenance materials, casement windows boast the best quality and peace of mind.

You can choose between a classic casement or flush sash design in a large range of different styles to suit any application, or check out our range of sash windows.

PVCu Casement Windows in Chartwell Green
PVCu Casement Windows in smooth white with bespoke glass

PVCu Casement Windows

Traditionally PVCu ‘double glazed’ windows were the market entry product that dominated the industry during the late 70’s and 80’s. Enjoying minimal maintenance, high security and exceptional thermal efficiency. The concept of the ‘storm design’ remains today although the aesthetic options, security and efficiency have improved significantly.

PVCu Flush Casement Window in Irish Oak

PVCu Flush Windows

Flush casement windows provide a traditional appearance while also providing similar energy efficiency and security as classic casement windows. Their traditional design sits the sash flush within the frame, creating a clean and tidy period appearance. They are available in an endless range of colours to give your home true individuality.

Aluminium Windows in cream

Aluminium Windows

Our aluminium casement windows look great in any home, from the most traditional to the ultra-modern. The super strong aluminium frames allow for more glass area, meaning your home will likely become brighter – as well as quieter, warmer and exceptionally secure.

Aluminium Casement Windows in Anthracite grey

Aluminium Flush Windows

All the benefits of our classic aluminium casement window have been transmitted into a contemporary flush design. The flush design is becoming increasingly popular and understandably so. It combines traditional aesthetics found on timber windows with the best possible performance only available in aluminium.

Slim Aluminium Windows in green

Slim Heritage Aluminium Windows

The ultra slim aluminium casement windows are the newest addition to our aluminium range. With a 47mm profile, it’s the ideal solution to replace old steel windows or if you’re looking for a solution that offers large glass areas with ultra slim sightlines.

Key benefits for you to enjoy



Casement windows are incredibly secure and aim to meet and exceed British Standards. With security being ever more critical, our designers incorporate the most sophisticated security systems available including options for PAS 24:2016 and Secured by Design to give that extra peace of mind.

Energy Efficiency

Energy efficiency is a priority for several reasons. It is essential that we watch our energy consumption and having energy efficient windows helps greatly in achieving this. Casement windows have excellent energy efficiency helping to reduce energy bills as well as reducing your carbon footprint. With windows being purportedly responsible for 25-30% of heat loss/gain, we’ve designed our casement windows to boast exemplary thermal performance, and having options to introduce inert gasses, warm edge spacer-bars and double-glazed units we can maximise efficiency and minimise your energy bills.


It is becoming much more common for windows to be considered a showpiece of furniture; they are one of the first things people notice when looking at your home. This idea is at the forefront of the styles and designs we offer, creating a wonderful unique appearance of your home, inside and out. Casement windows being a long-popular style in the UK means they have several aesthetic connotations. Casement windows were around even before the Victorian era and have a historic look. However, due to the amount of options available for material, casement windows can differ in appearance and now you can choose a style to specifically suit your home design. 

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