We collect basic data about your visit to our website. We will place a cookie onto your computer to remember your choice. See our Privacy and Cookie Policy


SIDERISE has been successfully developing insulation solutions for over four decades. Here you can find out more about our roots in the insulation industry and how we’ve grown to become one of the UK’s market leaders in developing acoustic, fire and thermal insulation products.

The SIDERISE production facility, on the Forge Industrial Estate in Maesteg, first opened its doors on 1st June 1991. Twenty-five years on SIDERISE has grown to become a market leader in the design and manufacture of acoustic, fire and thermal insulation solutions; its diverse range of fire-stopping insulation and acoustic products being renowned internationally.

Over the last twenty-five years SIDERISE has enjoyed success on many high profile projects, its products being used in developments across the globe. From meeting the rigorous standards at the Athlete’s Villages for both the 2000 and 2012 Olympics in Sydney and London, to the prestigious Canary Wharf Development as well as hospitals, government and pharmaceutical buildings. This success is thanks to innovative design - the company’s fire protection and acoustic solutions being simple in concept, simple to use and simple to install. SIDERISE has also enjoyed overseas success with Middle East projects such as the King Abdullah Financial District in Riyadh where it supplied 80% of the development’s perimeter barrier firestops.

What’s next for SIDERISE? Following on from this significant milestone SIDERISE next plans to expand its export markets, notably across Central Malaysia and India.

To support brand unification, whereby the company’s historic product names Lamatherm, Lamaphon and Lamapro would be replaced with the universal name ‘SIDERISE’,  a decision was made by the Siderise Group to register ‘SIDERISE’ as a trademark. An application was filed with the Intellectual Property Office in March 2015 and as of the 12 June 2015 SIDERISE was officially awarded the status of registered trademark.

As a registered trademark SIDERISE® would be used to create a stronger brand identity across the UK and in international markets.

Whilst Lamatherm, Lamaphon and Lamapro remain well known brand names to date, in 2013, in response to continued growth in the overseas markets, SIDERISE decided to unify and strengthen the identity of the SIDERISE brand itself. To do this the group was redefined by market sectors, and strategy started to unify group sales. The company also started a product reclassification programme which would see its products using SIDERISE as a prefix replacing the traditional 'Lamatherm', 'Lamaphon' and 'Lamapro' names.

In 2005 when Lamatherm (Products) Ltd merged with Siderise (Western) Ltd to form Siderise Insulation Ltd, the newly named company gained the intellectual property rights related to Lamatherm products that had been developed and tested prior to the merger.

In 2005 the Maesteg based companies Lamatherm (Products) Ltd, Siderise (Western) Ltd, and Siderise Ltd merged to form Siderise Insulation Ltd. Lamatherm continued as a strong company brand, as did Lamaphon and Lamapro.

The merger was undertaken to simplify the company's structure, meaning that Siderise (Special Products) Ltd would continue to operate in Hadleigh and carry out foam based OEM activities whilst Siderise Insulation Ltd would carry all other activities including the continued manufacturing of fire and thermal insulation products.

Siderise (Holdings) Ltd would continue to manage SIDERISE group interests.

Recognising that the market for rockfibre based non-combustible panel cores was likely to expand dramatically under pressure from insurers, and to ensure a competitive advantage, SIDERISE developed and patented a unique insulation product and automatic manufacturing process called HSL.

This patented technology represented a dramatic advance for the production of bonded composite panels to meet all the performance criteria required of modern industrial and commercial buildings, curtain walling systems, doors and volumetric building elements.

The HSL Process

HSL involves cutting mineral wool slabs into strips and turning them through 90 degrees so that the fibres lie at right angles to the board’s surface. These strips are resilient and much stiffer than a conventional slab of the same material. The strips (or lamellae) are then subjected to ‘super compression’ - a unique form of lateral compression - which eliminates all gaps within and between lamellae, thereby removing any weak points. They are held in the ‘super-compressed’ state by means of outer facings which are heat fused directly to the surface of the rockfibre. The result is a structural firesafe core, and a cost effective alternative to plastic foams, that is practical to install.

In 1991 SIDERISE consisted of the following companies:

Siderise Ltd, a technical / sales office and distribution warehouse based in Kingston Upon Thames, Surrey.

Siderise (Western) Ltd, a manufacturing facility (opened June 1991), and Lamatherm (Products) Ltd, a sales company which started trading in October 1991, both based in Maesteg, Wales.

Siderise (Eastern) Ltd, a manufacturing facility, Siderise (Boards & Panels) Ltd, a sales company, Siderise (Special Products) Ltd managing specialist OEM solutions, and Siderise (Holdings) Ltd, managing all company interests, were all based in Hadleigh, Suffolk

Operations of Siderise (Boards & Panels) Ltd were later transferred to Maesteg, and in December 1991 the company ceased trading.

The now well known Lamatherm brand was established to represent the company's fire safe and thermal insulation, along with Lamaphon for acoustic insulation addressing common sound problems, and Lamapro specialist insulation solutions catering to diverse industries such as HVAC, marine, rail, automotive and power generation.

Lamatherm became the UK’s No.1 firestop solution for the curtain walling industry for over 20 years.

With the initial success of the manufacturing facilities SIDERISE was approached by a number of customers requesting the production of foam composite materials that incorporated polymer heavy membranes. These products had a reputation for being notoriously difficult to bond.

In response SIDERISE approached Cambridge Insulation who had developed unique adhesives and lamination techniques, and specialised in complex foam and plastic laminations.  In 1982 SIDERISE merged with Cambridge Insulation to form Siderise (Special Products) Ltd, based in Hadleigh, which grew to become one of the largest UK suppliers of foam based acoustic laminates to the OEM industry.

As a consequence of the growing need for bespoke insulation solutions, SIDERISE opened its first manufacturing facility in 1979 which specialised in the processing of rockfibre materials. This was shortly followed by two further manufacturing units: a flexible foam processor and a mineral fibre fabrication facility producing high performance cores for composite panels.

This presented SIDERISE as being uniquely positioned to evolve into a specialist distributor - offering innovative acoustic materials and bespoke product designs to a variety of construction markets.

SIDERISE was first established in Surrey in 1972 as a distributor of acoustic materials. The product range initially comprised stonewool mineral materials, acoustic foams, heavy layer barriers and damping materials.

It was quickly recognised that customer requirements could often not be fully met with the standard acoustic materials available from the marketplace. Many users required products tailored to their individual needs. This could be a simple case of supplying cut or shaped components or possibly fabricating a unique complex acoustic material. Research was undertaken to see how SIDERISE could better cater to everyone's needs.

Whatever your insulation requirement, whether you are in the construction, marine, transport or energy generation sector, we can provide technical advice and a tailored insulation solution.

Talk to our technical advisory team who will be happy to have a look at your project.

Talk to us