ClearTech carry out pre-commission cleaning of pipework systems in accordance with BSRIA Guide BG 29/2020: ‘Pre-Commission Cleaning of Pipework Systems’.

As we are full members of the Closed System Control Association (CSCA) - Our registration with the CSCA allows ClearTech to demonstrate to CSCA appointed independent auditors that our approach to the management of water quality in closed systems is sound, well documented, and compliant with the published CSCA Service Delivery Standards and Code of Practice.

This means that all users of CSCA registered Service Providers (supplying cleaning and/or maintenance water treatment) can be reassured that their management procedures satisfy industry standards.

Our pre-commission chemical cleaning and water treatment services include:


  • Chemical cleaning of building water systems and pre-commission cleaning of pipework systems to BSRIA Guide BG 29/2020
  • Chemical cleaning of existing systems including individual tailored water treatment programmes and chemicals, specific to client’s needs
  • Sampling & Monitoring of closed loop heating and chilled systems including system checks to BSRIA Guides. Full Table 4 and Table 8, all carried out by independent UKAS Laboratory reports and interpretation with advice on ongoing treatment and compliance with current British Standards
  • Side stream filtration and dirt removal of closed-circuit heating and chilled water systems using cyclone separators and side stream filtration
  • Pre-commission chemical cleaning of district heating installations using cyclone separators, side stream filtration techniques and temporary diesel driven pumps to achieve the required flow rates and flushing velocities detailed in the BSRIA Guides
  • Dosing of specialty water treatment chemicals – corrosion inhibitors, cleaning agents, Glycol & a wide range of individually selected biocides


We can provide this as a stand-alone service to our clients, or as part of a twin package of water treatment and HVAC commissioning on a projects’ MEP and HVAC services.