Are you looking to purchase some high-quality 70mm Celotex? At Online Insulation, we can assist you. We are an industry-leading online supplier of insulation materials and drylining solutions. We have over 15 years of industry experience, so we are a supplier you can trust. Additionally, we only supply materials which are of a high quality that can be purchased at an affordable price.

Online Insulation is a name that is trusted by many tradespeople, as we have a great reputation of providing insulation materials of top brands, such as Celotex, Kingspan Phenolic insulation, Rockwool, British Gypsum, Velux, Recticel and many more. We are also known for the impartial advice we can offer, so you can trust us to help you get the best products for your projects. We often recommend certain products that we know are the best in the industry, for example, the 70mm Celotex, because we know that it is a versatile product, and has several good customer reviews. 

Buy 70mm Celotex

70mm Celotex has become a linchpin in the construction industry and we are proud that we have become a stockist of this PIR (polyisocyanurate) insulation. Celotex boards are excellent rigid foam insulation materials. The 70mm Celotex board comes with a foil layer between the plasterboard and insulation, as well as a paper back to allow for easy fixing to the wall. The board also comes with a tapered edge to allow for tape and joint system to be used instead of traditional wet plastering. This is one of the reasons why we highly recommend this product because its simple to install and work with.

The 70mm Celotex can be used for a range of applications, including walls, floors and roof insulation; and just to add, this product is the number one choice for builder and architecture engineers due to is A+ rating when compared to the BRE Green Guide, making it one of the biggest selling PIR insulation available on the market.

So, if you are looking for a 70mm Celotex insulation board, then you need to head over to our website today. However, if you need a different thickness of Celotex insulation board for your project, then get in touch with us today, as we also stock other Celotex products too. You can contact our friendly customer service team on 01509 649065 or alternatively, you can send us an email on and we’ll get back to you as soon as possible.