The capability of roofing systems is only as good as the relationship between the manufacturer and the installing contractor and particularly affects the workmanship standards set during the installation process. Sika-Trocal are proud to boast better relationships than many in the flat roofing sector, including a one with licensed roofing contractor CA Single Ply that stretches to over 100 years collective experience within the market.

CA Single Ply form part of the Cambridge Asphalte Group and has been a Sika-Trocal licensed contractor since 2003. During this period of time the company has been involved in a wide portfolio of jobs in the commercial sector for schools, universities, healthcare trusts and retail developments etc. The company is also experienced in the green roof sector.

CA Single Ply is particularly focused on health and safety and quality standards as their gold award for CSCS commitment; RMS health and safety management, CHAS accreditation and ISO 9001 registration shows. The company also works with the Eastern Region Roof Training Group Ltd and was training company of the year in 2008. CA are also an active member of their trade body, SPRA.

The Sika-Trocal concept is not just product related, it extends itself to business support, training and on-site assistance for companies such as CA Single Ply. When contractors need it most, there’s the added value of dealing with a company that has 37 years experience in the UK market, which is also part of the global Sika Group and that means greater resources at the sharp end.

Tony Wadsworth, managing director of the Cambridge Asphalt Group comments: “There’s much more to Sika-Trocal than just the product and similarly we as a business offer considerably more than many other contractors in terms of tight health and safety policies and staff development. It’s about offering that little bit extra to the end client and with the support of Sika-Trocal we are able to do just that.”

Sika Limited is a wholly owned subsidiary of Sika AG, a global company based in Switzerland specialising in the manufacture and supply of chemical based products for construction and industry. A world-leader in its field, Sika has subsidiaries in more than 70 countries, generates annual sales of CHF 4.6 billion and is committed to providing quality, service, safety and environmental care. In Great Britain, Sika AG owns the two major single ply roofing system brands, Sarnafil and Sika-Trocal, operating them as competing brands from separate limited companies.

The Sika-Trocal Roofing Division of Sika Limited provides flat roofing membranes for the new build and refurbishment markets. Trocal was first established in Great Britain in 1972 and acquired by the Sika Group in 2001. Throughout its history the company has maintained high standards of training and quality installation, building a loyal specialist sub contractor, specifier and client base. Today Sika-Trocal provides high levels of specification generation, site support, straightforward guarantees and quality in construction, making Sika-Trocal the contractor’s choice. Call 01707 394444 or visit

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Sika is a global company with more than 100 production and marketing subsidiaries in over 70 countries. We are a globally integrated company supplying innovative products and solutions for waterproofing, sealing, bonding, roofing, concrete repair,...
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T(01707) 394444
F(01707) 329129
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 Watchmead, Welwyn Garden City, Herts, AL7 1BQ


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