LEV testing vs servicing: what is the difference?
A service keeps equipment in working order. A thorough examination and test determines whether the complete control system is still effective and records that evidence. One visit can include both, but the deliverables and decisions must remain clear.
Check my situationRead the report, not the invoice heading
A document labelled service, maintenance, certificate or inspection is not automatically a COSHH thorough-examination record. Look for identified hoods and test points, measured technical performance, comparison with intended or previous values, a conclusion on control and prioritised remedial actions.
- Does the record identify the complete system and each hood or capture point?
- Are measurements, instruments, operating conditions and benchmarks visible?
- Does it state whether control is effective, what must change and when the next TExT is due?
What to do next: If the evidence is missing, ask the contractor whether a complete HSG258-aligned TExT was performed and request the full report. If it was only servicing, commission the examination separately rather than relabelling the invoice.
Routine checks
Operators and managers should make regular simple checks between formal examinations: airflow indicators, hood condition, unusual noise, damaged ducting and filter status. These help find deterioration early but do not replace the statutory TExT.
HSG258 expects a logbook or equivalent record connecting checks, maintenance, repair and examinations over the system life.
Servicing and maintenance
Servicing can include cleaning, belt adjustment, filter replacement, fan work, balancing and repairs. It is essential when needed and is part of maintaining the control measure in efficient working order.
The service may restore performance, but without the full examination evidence it does not demonstrate that the system controls exposure as intended.
Thorough examination and test
The TExT is a structured evidence exercise: inspect the complete system, measure performance, observe control where appropriate, compare with benchmark information, judge effectiveness, report defects and set the next date.
Ask for separate line items when buying combined service and TExT work so that the statutory deliverable and any commercial repair recommendations remain auditable.