About Structherm

Structherm are the UK’s number one experts in the external refurbishment of non-traditional housing & high rise buildings. Our unique Structural External Wall Insulation can extend the life of a property by 30 years, dramatically improve the thermal performance, reduce fuel bills and provide a modern and fresh appearance.

Founded in 1983, Structherm are renowned for their unique ‘Structural External Wall Insulation’ (SEWI) system which is manufactured at its factory in West Yorkshire. The SEWI system is designed to provide a refurbishment solution for the treatment of defective, non-traditional housing and high rise buildings. Read more about the history of Structherm.

Slough Reema Properties, Refurbished 1999

Our Products

There are hundreds of different types of properties in the UK, so selecting the correct system is critical. Giving a building the wrong treatment can have serious effects, which is why our team of technical experts take no short cuts when designing a bespoke, Structural External Wall Insulation solution.

The SEWI system is the least disruptive solution for residents and the most cost effective.

It offers benefits far and beyond those provided by standard external wall insulation systems. It can actually stabilise defective properties and extend their life by at least 30 years. If demolition is under consideration then talk to us … there may be an alternative!

But we’re more than just SEWI, we also have a comprehensive range of non-structural External Wall Insulation systems suitable for the mainstream market – both refurbishment and new build. These are cost effective systems which improve both the thermal and aesthetic qualities of a property.

All of our systems are complimented by diverse range of finishes. Different textures, profiles and effects in a wide array of colours. From standard render to dash to brick slip to brick effect Structherm have it all.

Technical Support

Our aim is to develop a full understanding of your challenges and operational objectives in order to ensure a smooth and timely delivery of your project. In doing so we offer the very best on design and specification support that covers all aspects of your EWI project.

We have a team of technical experts (regional and in house), qualified engineers and CAD designers to provide all the advice and support you need. We aim to provide everything you need to simplify the design and specification solution for your project.


All our systems are applied by a network of Authorised Installation Contractors (AICs) who have undergone specific training in the application of our systems. They are regularly audited to ensure that they provide an excellent service to our customers. Installation is monitored onsite to ensure quality of application.

Structherm have a strong culture of customer support resulting from its commitment to ensuring specifiers, procurers, contractors, tenants and all other stakeholders in the business benefit from our innovative solutions.

Customer Service

If you have a project you’d like to discuss with us, or if you have a question about any of our products or services please Contact Us.
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