TSL became CHAS Accredited in 2011. CHAS is an authority on health & safety compliance and being accredited provides assurance & reassurance to our customers that we are committed to safeguarding their reputation and ours.

NICEIC is the UK’s leading regulatory body for the electrical contracting industry. As an approved NICEIC contractor you can be assured that our work is completed to the current 18th Edition BS 7671 standards.


TrustMark is a Government Endorsed Quality Scheme which shows customers that we have been thoroughly vetted to ensure we meet the required standards.

As well as the accreditations above, at TSL we ensure that all members of staff are fully qualified and trained to the highest standard.

All employees have completed the ECS Health, Safety & Environmental Assessment as well as holding a current JIB Card. In addition, all employees are required to complete a current DBS check before working on customer sites.

Additional training courses completed include:

  • IOSH Directing & Working Safely


  • Emergency First Aid at Work

  • Asbestos Awareness

  • MEWP

  • IPAF


  • Draka UC Connect

  • Thorn Lighting

  • Fire Industry Association

  • PAT Testing

  • AutoCAD