VENTILATION COMPLIANCE

Ventilation testing and commissioning.
Fresh air, properly measured.

Completion-stage airflow testing, balancing and commissioning evidence for domestic ventilation systems.

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01

Measured airflow rates at completion

We measure the airflow delivered by extract fans and mechanical ventilation systems at the relevant terminals. The results show whether the installed system achieves the design rates and provides the evidence required for completion.

02

MEV and MVHR system balancing

Whole-house mechanical extract and heat-recovery systems need to be set up as a complete system. Supply and extract terminals are adjusted, measured and balanced so the dwelling receives controlled ventilation without relying on assumptions.

03

Commissioning documentation

The final record identifies the system, measured rates, settings and test equipment used. Documentation is prepared for the applicable regional requirements and can be coordinated with SAP, EPC and handover information.

04

Diagnose shortfalls before handover

Low airflow can result from unsuitable ductwork, excessive bends, crushed flexible duct, blocked terminals, poor fan settings or installation defects. Where readings are insufficient, we explain the likely causes so the installer can target corrective work.

COMMON QUESTIONS

Clear answers.
No guesswork.

01Which systems can be tested?+

Services can cover intermittent extract fans, decentralised continuous extract, central MEV and balanced MVHR systems, subject to the installed system and project scope.

02Should ventilation be tested before the air-pressure test?+

Both should be planned together. The ideal sequence depends on site readiness, but ventilation should be complete, powered and accessible before commissioning.

03Can you fix the system during the visit?+

Normal balancing and control adjustment may be included. Installation repairs, replacement components and major ductwork alterations remain the responsibility of the ventilation installer.

04Do the requirements differ across the UK?+

Yes. The page and quotation will refer to the regulations and commissioning documentation applicable to the project location rather than applying England-only wording everywhere.

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