Welcome to Online Insulation, we are a leading online store that has over 15 years of experience in design, specification, manufacturing and distribution of incredible dry lining and insulation products. We have an amazing team of specialists on board to help with all of your specific needs and can assist with any advice or guidance relevant to the project that you are about to undergo. Whether you need fire protection or 40mm insulation boards, we have everything you need and more, all at affordable prices, so you can trust that we are the ones you need.


No matter how big or small the job may be, we know that we can supply all of the products to help with all of your specific requirements. When it comes to 40mm insulation boards, we have a variety of products to choose from including our best seller, the Celotex TB4040 PIR. This board is a high performance item for insulation, it is ideal for overcoming thermal bridging and for use in two layer build-ups as well as under rafters and over stud in timber frame wall lining applications. The Celotex 40mm insulation board is also perfect to use as perimeter upstands in concrete floor constructions. 


Alongside the Celotex product, we also have the Ecotherm Eco-Versal PIR, Quinn Therm PIR and 40mm Recticel GP insulation boards. Many of our products are moisture resistant, meaning that damp and mould will be less likely to occur and also have long-term durability as its insulation properties won’t deteriorate over time. So you can trust that we will be able to deliver an incredible product that is a worthwhile investment and offers great value for your money.  We guarantee that you will be left feeling more than satisfied with our services, just take a look at our testimonials and see the amazing reviews that we have received from previous clients throughout the years.


Our 40mm insulation boards are some of the best on the market and have been supplied to us by leading brands across the country, so you can be confident in knowing that you will be purchasing effective and efficient materials that will only benefit your property. If you need any advice or guidance about choosing the right product for your home or business, you can contact us today and our highly-trained and skilled staff will assist you with all of your requirements.

So if you are in need of 40mm insulation boards, shop online today, or call 01509 649 065 and our friendly staff will be on hand to help with anything you may need. For any inquiries, please do not hesitate to email info@onlineinsulation-sales.com and our customer service team will be in touch shortly to answer any and all of your questions.