... comparable quotations. In order for a main contractor to keep up to date and achieve this, common best practice is for the firm to produce a list of sub-contractors and suppliers which are capable of being entrusted with a project. These sub-contractors should be periodically reviewed to maintain quality, health & safety and environmental requirements of service. If any possible new Sub-contractors come into the frame a prudent Main-contractor would audit there management structure to assess there suitability and track record to deliver to a required standard. As soon as it has been decided to select a sub-contractor by competitive tender a shortlist of those considered suitable to be invited should be compiled. The Main Contractors short listed of companies should comprise of several suitable aspects: * Have established skill and integrity within respective industries. * Proven competence to deliver due regard to the nature and size of the works * The firms financial ...

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