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As part of the NICEIC Approved Contractor Scheme, which recognises the competence and professionalism of electrical contractors undertaking design, installation, commissioning and maintenance of electrical installations to BS7671, ISTL use certify all electrical installations; giving clients and end users the peace of mind that comes with a nationally recognised regulatory body.

NIC EIC offer training and support to all its members, ensuring that ISTL are armed with up-to-date knowledge and experience to provide a top class installation.

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HVCA adds value to members' businesses by providing quality services, promoting excellence and shaping the commercial environment through representation and leadership.

The HVCA represents the interests of firms active in the design, installation, commissioning and maintenance of heating, ventilating, air conditioning and refrigeration (hvacr) products and equipment.

HVCA members are subject to regular, third-party inspection and assessment to ensure their technical and commercial competence.

HVCA member companies benefit from access to a wide range of services which are carefully tailored to their needs, and which help them to build better and more profitable businesses.

These include commercial, legal and technical advice, health and safety guidance, an employment affairs resource, promotional and parliamentary lobbying support and an infrastructure for education and training.

The HVCA is itself a member of the Specialist Engineering Contractors' (SEC) Group, which provides a united voice for engineering specialists and has representation on the Strategic Forum for Construction.

It is also a member of GCI-UICP, the European umbrella body for the hvacr and plumbing sectors, and of CEETB, which exists to represent all engineering specialists in construction.

HVCA is a member of the TA Forum. Since its formation in 1997, the Trade Association Forum has been encouraging the development and sharing of best practice among UK trade associations and promoting the role of effective trade associations to government, industry and the wider public.


QMS certification identifies ISTL’s quality management procedures as fulfilling ISO 9002 criteria proving compliance in all quality procedures. ISTL can prove to its clients that works are undertaken in a regulated and audited manner to ensure quality and accuracy of the final product.

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The Fire Industry Association is a not-for-profit trade association with the aim of promoting the professional status of the UK fire safety industry. Their main objective is to promote the professional standards of the fire industry through close liaison and lobbying with Government and official bodies as well other key organisations in the industry.

They provide technical knowledge and advice to anyone who needs it regarding fire safety in the UK and also provide training courses to members and non-members alike on all the latest technical and legislative topics to affect those working with fire safety.