Screening Checklist
- • Check plant-room and riser experience
- • Validate pressure test and commissioning track record
- • Confirm permit process familiarity for hot works
Certificates and Evidence
- • CSCS/skill card
- • Hot works competency (if relevant)
- • Water hygiene awareness where required
Interview Questions for Plumbers
- • How do you control shutdowns and tie-ins?
- • What sequence do you follow for pressure testing?
- • How do you coordinate with BMS/electrical commissioning teams?
Red Flags to Escalate
- • No method for documenting pressure tests
- • Weak experience in occupied building shutdowns
- • Inconsistent approach to permit controls
Plumbing mobilisation often bottlenecks where commissioning deadlines are fixed by client handover dates.
Frequently Asked Questions
Should plumbing hires include commissioning support?
If the package includes handover, include commissioning capability in scope and interview checks.
What paperwork should be requested up front?
Cards/certs, references, and examples of commissioning/pressure-test evidence from recent jobs.
How quickly should plumbers onboarding happen?
For quality hires, competency checks and references should be completed before start date so teams can mobilise cleanly and safely.