







Costs can vary depending on the number of workers, the duration of monitoring, and the site complexity. As a general guide:
Single-day, single-worker personal monitoring: ~£400–£600
Multi-worker or multi-day projects: £1,000–£3,000+
Add-on services (e.g. real-time readings, CO/NOx gas checks): Extra depending on scope
What you're really paying for is not just the equipment, but the expertise: designing the monitoring strategy, analysing samples in an accredited lab, and producing a report that actually helps you take action.
Some companies also bundle diesel monitoring into broader COSHH assessments, which can be more cost-effective if you're looking at noise, dust, or vibration at the same time.