Why Partner with Clement Windows for your Home Renovation

May 7th, 2021

Mellow End – Windows from Clement’s EB20 range were chosen to provide a close match to the original windows at this private residence in Surrey.

As a recipient of the Best of Houzz awards 2021 in both the design and customer service categories, Clement Windows has been recognised by the online home improvement platform for unrivalled excellence in the steel window industry for six years running, as a result of the glowing testimonials given by both our commercial and residential customers.

At Clement Windows, our number one priority is providing a quality product and excellent service to our customers.  Our steel windows, doors, rooflights and screens are approved by some of the most exclusive accreditors, in order to assure our customers that they’re getting the best of the best.

ISO 9001:2015 certified by TUV Rheinland

Each steel window or door we produce at Clement Windows is manufactured in our very own ISO 9001 approved factory – an accreditation universally respected as a top indicator of quality assurance.

The ISO 9001 ensures that our manufacturing process operates at peak performance, promoting a continuous improvement process (CIP) so that the products we manufacture can only get better meaning that Clement can guarantee that the quality of our steel windows and doors is unbeatable.


While the steel windows made by Clement embody the perfection we strive to deliver to our customers, we also know that producing high quality windows is only one half of the equation.  At Clement Windows, we recognise that a stellar installation process is crucial to facilitating the success of any home renovation project and to ensuring the satisfaction of our customers.

As such, we are FENSA certified – an accreditation that assures our customers that their windows and doors are installed according to the highest standards set by the UK government for these installations.

Our FENSA accreditation provides peace of mind to our residential customers that their homes are in safe hands, that every window, door, rooflight and screen that Clement installs adheres to the government-set building regulations, and that each installation is energy efficient and registered with the local council.


Tanglewood – This was a sensitive steel window replacement using Clement EB24 windows to replicate the unique leaded light look but with added thermal performance.


In addition to quality assurance at every step of our home renovation projects, nothing is more important to us than ensuring our customers’ safety inside their homes – and being able to provide peace of mind about this to our clients.

As a result, we have the certifications to prove we continually adhere to the strictest risk management and health and safety protocols, as evidenced by our CHAS (The Contractors Health and Safety Assessment Scheme) accreditation.

Moreover, as a member of the Glass and Glazing Federation (GGF), Clement Windows is approved by the top window industry authority.  As an organisation, the GGF ensures that its members adhere to the best practices for glass and glazing installation, in addition to the high health and safety standards upheld by the federation to protect and deliver quality glass to home owners.

HomePro Insurance Backed Guarantee

Finally, Clement Windows is able to offer the majority of home owners a HomePro Insurance Backed Guarantee (IBG), including deposit protection and a Warranty Insurance Policy that guarantees the quality of our work for up to 10 years from completion of the project.

At Clement Windows, we value all of our prestigious accreditations as these certifications allow us to provide the best possible products, installation and services to our customers, while giving our clients the ultimate peace of mind that their homes are safe in our hands.

Bethnal Green – This steel door set from Clement is perfect for this London ground floor extension letting in lots of natural light.

For more information visit our Accreditations page here or to view some of our previous residential projects, see our range of case studies here.