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Quality Assurance & Accreditations

We always work to the highest standard and ensure we are working with the best in each area of roofing and construction.

Our Accreditations

Liquid Plastics Quality Assured Scheme QA Contractors

www.liquidplastics.co.uk “Our QA contractors receive comprehensive product training provided by pour roof experts” Iain Spence – technical Field Services To promote strict professionalism, our QA programme has demanding entry criteria along with a stringent code of practise. The offices of potential new members undergo a comprehensive audit inspection to ensure that the company has a sound corporate identity and follows excellent working practise.

Competent Roofer

CompetentRoofer is the Government-licensed Competent Person Scheme for England and Wales that allows professional roofing contractors to self-certify that their roof refurbishment work complies with Building Regulations. The scheme encompasses all roofing types for domestic, industrial and commercial properties and is open to all roofing contractors to apply. If 50% or more of your roof needs to be replaced, then under the Building Regulations, your Local Authority needs to be notified a minimum of 48 hours before work commences. If you don’t then you risk a fine of up to £5,000, plus the cost of putting the work right if it isn’t up to the required standards. By using a Competent Roofer member, property owners will save not only time and money but will have the added reassurance that the work carried out meets the exacting standards of the Building Regulations.

ISO 9001 & OHSAS 18001

ISO 9001:2008 sets out the criteria for a quality management system. It can be used by any organisation, large or small, regardless of its field of activity . The standard is based on a number of quality management principles including a strong customer focus, the motivation and implication of top management, the process approach and continual improvement. Using ISO 9001:2008 helps ensure that customers get consistent, good quality products and services, which in turn brings many business benefits. Checking that the system works is a vital part of ISO 9001:2008. An organisation must perform internal audits to check how its quality management system is working.

OHSAS 18001 is an Occupation Health and Safety Assessment Series for health and safety management systems. It is intended to help an organisation control occupational health and safety risks. It was developed in response to widespread demand for a recognised standard against which to be certified and assessed. OHSAS 18001 was created via a concerted effort from a number of the worlds leading national standards bodies, certification bodies, and specialist consultancies.

Adhering to OHSAS 18001 enables Clarke Roofing to create the best possible working conditions across the organisation, identify hazards and put in place controls to manage them, reduce work place accidents and illness, engage and motivate staff with better, safer working conditions, and demonstrate compliance to customers and suppliers.


As a leading health and safety pre-qualification assessment scheme, Safecontractor are dedicated to promoting higher standards of competence and compliance through the provision of relevant industry specific and tailored health and safety assessments for all professions and sectors.

CHAS / Constructionline

Constructionline is the Government’s national register for suppliers. In the same way CHAS offers a tool for use in the health and safety element of pre-qualification, Constructionline provide the pre-qualification tool for use in financial standing, technical references and other areas. The CHAS management group supports the principles of a single register and so works jointly with Constructionline. Following agreement by the then Department of Trade and Industry, CHAS and Constructionline formed a “mutual working agreement”. This describes how we will work together to provide an improved services for buyers. You can get details of that agreement by contacting us. Both CHAS and Constructionline have their own independence and identity but our schemes are linked.

Investors in People

In 1991 when Investors in People launched Michael Howard said “Investors in People is a standard designed by business, which will be met by business, because it is in the interests of business.” Launched in 1991, Investors in People is the UK’s leading people management standard. Its a business improvement tool designed to help all kinds of organisations develop performance through their people. Our vision: is to make Investors in People the choice for leaders who want to deliver business impact and growth.

Lead Contractors Association

Formed in 1984 to prioritise quality standards in lead-work, the LCA now comprises over 100 specialists contractors committed to providing quality craftsmanship for their clients, supported by 15 associate members supplying materials and ancillary services. Regardless of structure, members are required to take full responsibility for the purchase and application of the lead sheet under their control. All members are required to work to the current Code of Practise (BS6915) and the recommendations of the Lead Sheet Association. An annual vetting programme provides rigorous quality control of members’ standards, through compulsory on-site inspection of workmanship and design.

The Institute of Roofing

The Institute of Roofing is the only ‘professional’ body in the roofing industry. Our aims are simple: To provide the best qualified and trained managers to suit our changing industry’s profile. To prove qualification and competency of the person in their chosen sector of work. To provide the individual with the opportunity of training in various fields of the roofing industry to broaden the knowledge and ability of the management involved with the roofing industry.

The National Federation of Roofing Contractors

By using an NFRC registered contractor you have the comfort of guaranteed protection and quality. NFRC actively ensures that members offer high standards of workmanship and sound business practise through a strict code of practise and independent vetting procedure, including site inspections and adhering to the Government-endorsed TrustMark standards. All NFRC trade members hold comprehensive insurance cover and insurance-backed warranties are available.

Trust Mark Scheme

TrustMark is the nationwide Government-backed scheme to help customers find reputable tradesman to carry out work inside and outside their home. The National Federation of Roofing Contractors Limited is an approved scheme operator for TrustMark and together with the Government and other key bodies are working together to stamp out rogue traders in the roofing industry.

Intelligent Membrane Association

The IMA is an association of Icopal-approved roofing contractors offering a guaranteed level of exceptional service, skill and technical expertise. All IMA members have an impressive track record in roofing projects of all sizes, and are committed to ongoing training.

A not-for-profit organisation, the IMA is supported by Icopal, the world leader in building protection from roof to basement. IMA members not only use products from across the Icopal product range, but also have exclusive access to Icopal’s highest quality roofing systems; these demand the greatest installation skill and therefore carry Icopal’s most comprehensive guarantees.