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At Clement we are experts in steel window fenestration.

We offer residential clients and building professionals a choice of high quality steel windows, doors and screens, tailor-made to your specific requirements, together with a popular collection of conservation rooflights.

We provide a complete service – from the provision of technical drawings through to manufacture, installation and after sales support – whether your project is a traditional restoration project, one involving Listed Buildings or Conservation Areas, or a new build. We specialise in replacement windows for heritage projects, yet our windows are the solution for most schemes where metal windows are required.

Our previous work includes prestigious steel window projects across the UK, Europe and the USA and our range of rooflights, which are available from stock, are popular in several countries worldwide.

We are delighted that so many of our clients come back to us again and again because they know they will not find a better product anywhere else.

Choose Clement steel windows and you will enjoy technologically advanced, low maintenance steel windows which will meet the latest performance requirements for insulation, weatherproofing and security and which will last for many years.

All of our windows are sensitively crafted to the highest standards in our own ISO 9001 approved factory. The process of manufacturing a steel window – from rolling into shape and welding to hot dip galvanising and powder coat painting – is a complex one which takes time and attention, but we believe this is time well spent to ensure the end product is the standard people have come to expect from Clement.


Clement Steel Windows


New or replacement steel windows are not only visually stunning with their slim and elegant sightlines, they also result in lower energy bills, greater security and a reduction in noise. Clement offers a broad range of windows to suit every purpose. We specialise in the replication of existing windows while respecting and enhancing important heritage and conservation objectives.

Clement Windows Doors & Screens


Clement's steel doors and screens are made from slim steel sections. Offered with multi point locking or a traditional mortice lock, they come in a range of colours to match your interior design or to create a unique look. Safety glass is standard and a number of glazing options are offered for fireproofing, security and to meet solar and acoustic requirements.

Clement Windows Conservation Rooflights


The Clement Conservation Rooflight is a modern replica of a Victorian original, manufactured for a range of heritage projects. Available in eight standard sizes for a tile or a slate profile, when your rooflight is installed it will lie flush with the roof line. If one of our standard sizes does not fit, we also manufacture bespoke sizes.


What we’ve been talking about recently on social media

What we’ve been talking about recently on social media

Are you following us on social media? If not, why not start now? We keep our accounts up to date with all our latest projects and news. We hope by following Clement Windows Group you will be kept both informed and inspired! Read more...


Case Study: St Paul’s Church – Leeds

Case Study: St Paul’s Church – Leeds

St Paul’s Church in Leeds has been transformed with the addition of a large, bespoke steel door screen and feature steel window. The screen incorporates a pair of double doors, providing light and airiness. Both the new steel window and door set are made from Clement EB24 steel sections which include double glazed, argon filled glass units. Read more...


Superb steel windows by Clement Windows Group

At Clement we have been privileged to work on some of the most beautiful homes both in the UK and abroad. We know that the right windows make a striking difference to a property and the Clement team work hard to create a unique and stunning look for every client.

Clement Windows Brochures


We hope you find all the information you are looking for, but if you still have a question, please feel free to get in touch, or you can make an appointment to see our showroom and experience our steel windows, doors and screens first hand.