Toolbox Talk

Subcontractor Pre-Qualification Assessment

TBT-SUB-020

Pre-qualification assessment ensures that subcontractors have the competence, resources, and safety management systems to work safely on your project before they arrive on site. Engaging a subcontractor without checking their safety record, insurance, and capability can lead to serious incidents and legal liability for the principal contractor. This talk explains the pre-qualification process and what must be verified.

Key Hazards
Incompetent subcontractors causing incidents due to lack of safety systems
Uninsured workers on site creating financial and legal liability for the client
Subcontractors without valid training cards operating plant or doing specialist work
Poor safety culture imported onto site by contractors with bad incident records
Control Measures
  • Verify the subcontractor's health and safety policy, risk assessments, and method statements before appointment.
  • Check that employers liability insurance is current, adequate in value, and covers the project activities.
  • Review the subcontractor's accident and incident record for the previous three years as a minimum.
  • Confirm that all operatives hold valid CSCS, CPCS, or equivalent competency cards for their trade.
  • Assess the subcontractor's safety management structure including named competent person and supervision levels.
  • Request evidence of relevant accreditations such as CHAS, SafeContractor, or Constructionline membership.
  • Check that the subcontractor has adequate welfare provision arrangements or will use the site facilities.
  • Document the pre-qualification assessment and retain records in the project safety file.
  • Do not allow any subcontractor to start work until the pre-qualification assessment is completed and approved.
Remember
  • Verify the subcontractor's safety policy, risk assessments, and method statements before they start
  • Employers liability insurance must be current, adequate, and covering the specific project activities
  • Review the subcontractor's accident and incident record for at least the previous three years
  • All operatives must hold valid CSCS, CPCS, or equivalent competency cards for their role
  • No subcontractor may start work until the pre-qualification assessment is fully completed
  • Document the assessment and retain all records in the project safety file for future reference
Applicable Legislation: CDM Regulations 2015 · Health and Safety at Work etc. Act 1974 · Employers Liability (Compulsory Insurance) Act 1969 · Management of Health and Safety at Work Regulations 1999
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