Important Information: For all updates and Celotex announcements since June 2017, please see the links below...  See more

Declared lambda values - Read more >

5000 Class 0 testing - Read more >

Rainscreen cladding & RS5000 - Read more >


One of Celotex' objectives is to provide ground-breaking products, solutions and services for the insulation market.

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Factory 2

Take a look at our list of innovative achievements over the years:


On 1st May 2013, we were the first PIR manufacturer to launch our entire product range as BIM objects via the NBS National BIM Library.


Launched the Celotex U-value Calculator App.


Technology barrier was broken again with a best in class lambda value of 0.021W/mK for our FR5000 and CG5000 range.


Achieved the thermal improvement of 0.022W/mK across all product categories.


The first PIR manufacturer to be awarded with an A+ Green Guide rating by BRE Global.


FR4000 was launched and possessed Class O fire performance, which at the time was not available from any other PIR provider. Later that year, Celotex’ plasterboard laminate PL4000 was launched, offering the best solution for dry-lining applications.


After receiving investment, Celotex opened the Henneke line - a new manufacturing and warehousing facility - in Hadleigh


Invested in a new PIR foam board manufacturing line at Hadleigh, Suffolk which ultimately allowed us to develop the product range we have today.