Express Site Solutions are approved members of the following associations:

CHAS, 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.



CPA, Construction Plant-Hire Companies from Owner Operators, through Tool Hire Shops, and up to the market leading Multi-Depot Organisations, hire out all types of Construction Equipment and Construction Plant. These plant hire companies form the membership and are represented on various working committees. In collaboration with these committees, CPA conditions of hire have been created, together with improvements on Health and Safety and Training.


CAI, The CAI is the recognised body for the aerial and satellite industry. The CAI is committed to raising Standards within the industry and the criteria for membership are extremely high. One of the many membership requirements is that any installing member company will agree to the examination and test of any equipment manufactured or supplied the inspection of any installation or investigation into conduct which could have a detrimental effect on the reputation of the CAI or its Members.


Construction Line, at the heart of what we do is our national online database, the UK's largest register for pre-qualified contractors and consultants. In terms of efficiency, time and cost saving and best practice, Construction line is proven to deliver for public and private sector organizations alike.



The Security Systems and Alarms Inspection Board, To ensure high standards of service within the community of electronic security, guarding and fire system providers in the interests of end users. This is achieved through rigorous assessment of providers against SSAIB’s scheme criteria and British or European Standards maintained by regular and ongoing audits of management systems and inspection of systems. We participate in the development of standards and regulations to ensure that they are appropriate and workable, whilst also maintaining close liaison with the Police, Fire Services and Insurance industry to ensure ongoing support for our activities.


Building Register Approved, For People involved with the Construction Industry who are under pressure to source verified sub-contractors and suppliers, Causeway’s Building Register is the fastest way to search and select. We provide construction specific information on over 350,000 companies, unlike other services that are little more than online telephone directories or are limited in scope. Our Service provides instant access to companies’ coverage together with financial, health and safety, quality and insurance information to reduce risk and save time.