Experience the Clayton difference

A Glass Company Putting the Customer First Since 1956. IGU Manufacturer/Sealed-Unit Manufacturer of the Year 2019.

The UK’s number one, award-winning, sealed unit manufacturer. Situated in Durham and delivering nationwide. Furthermore, operating from the largest IGU manufacturing site in the UK.

IGU Manufacturer, glass company


SMARTGLASS is a market-leading range of specialist products for conservatory and glazed extension applications.

IGU Manufacturer, glass company

Celsius Glass

Meet Clayton Glass' new range of conservatory roof glazing products. Boasting the lowest U-values ever seen.

We manufacture sealed units with high-quality warm edge technology. Subsequently, we supply some of the biggest names in the industry.

SMARTGLASS is our market-leading conservatory wall and roof glazing brand. FACT: On average, we despatch around 800 roof units a day! Additionally, to find out more, visit the SMARTGLASS website HERE!

The Clayton Difference

We are a privately owned, autonomous business, in which the Directors are actively involved in the day to day running. Furthermore, we like to work with our valued customers., with a heavy focus on having the mentality that the customer always comes first, receiving the care and attention that you’d expect from a family-run business. Undeniably, implementing service levels and schedules that no other glass company can match. This is the Clayton Difference. 

The Clayton Difference is firstly the mantra that Clayton Glass lives by. Specifically, It is the idea of having the capabilities of a large-scale IGU manufacturer, with all the care and attention of a family-run business.


We are using cookies to give you the best experience on our website.
You can find out more about which cookies we are using or switch them off in settings.