Contractors Health & Safety Assessment Scheme

CHAS is established as the market leader for health and safety pre-qualification in the UK. It is a non-commercial scheme available to suppliers (those who provide goods and services) and to organisations (buyers) looking for suitably competent suppliers.

Competent Roofer

CompetentRoofer members are compliant and up to date with Building Regulations. CompetentRoofer members are professional contractors who are thoroughly inspected prior to acceptance and undergo regular inspections thereafter.


Ensuring cross industry standards and open channels of communication to the construction industry.

The NationalFederation of Roofing Contractors Limited

The National Federation of Roofing Contractors Limited (NFRC) is the UK’s largest roofing trade association, representing over 70% of the roofing industry by value

NQA ISO 9001 Registered

ISO 9001:2008 is the International Standard for Quality Management Systems (QMS). Providing WAA with a set of principles that ensure a common sense approach to the management of business activities to consistently achieve customer satisfaction.

Trustmark Registered

Local, trustworthy & reliable tradesmen, operating to Government endorsed standards.