Midland, Western Australia, Australia
St John of God Midland Private Hospital is a flagship private healthcare facility in Midland, Western Australia, co-located with the public Midland Health Campus and forming part of the broader Midland Health Campus development on the site of the former Midland Workshops.
The hospital delivers acute inpatient and day surgery services across a wide range of medical and surgical disciplines, with specialist facilities for maternity, paediatrics, oncology and rehabilitation.
The new 123-bed purpose-built private hospital is due to open in August 2026. The hospital features eight operating theatres, a Cath Lab with advanced technology, and patient-focused facilities designed to provide a contemporary, welcoming environment that enhances care and healing for patients, families, and clinicians alike.
To support the handover of this significant healthcare development, Dewick & Associates was engaged to author the Commissioning Plan and O&M Manuals for the project, ensuring the building services were properly documented and verified before clinical operations commence.
Our focus was on producing a structured commissioning and handover documentation package that gave the hospital’s facilities management team a clear record of how the building services had been installed, tested and commissioned, and what was required to maintain them through the operational life of the facility.
By Katie Cocks
Credit: Supplied by St John of God Midland Private Hospital.
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Centigrade Mechanical Contracting Pty Ltd delivered a complex building services scope. The installation included a substantial thermal plant comprising three air source heat pumps for heating hot water (HHW), three chillers for chilled water (ChW), a cooling tower, pumps, buffer tanks and associated ancillary equipment including chemical dosing and filtration systems.
Air handling and conditioning systems incorporated 31 chilled and heated water air handling units (AHUs), 18 fan coil units (FCUs), seven split ducted air conditioning systems and a wall-mounted split AC system. The project also included extensive ventilation infrastructure, including kitchen ventilation, 54 ducted general exhaust systems, smoke exhaust systems, toilet exhaust systems, and pressurisation systems servicing the Central Comms Room and stairwells. Supporting the specialised operational requirements of the hospital were 101 variable air volume (VAV) terminal units, 12 resistive steam humidifiers and two in-row computer room air conditioning (CRAC) units.
The Medical Gas Systems covers the medical gas infrastructure servicing Ground Floor through to Level 4 of the facility. The installation incorporated a range of critical medical gas systems, including oxygen, medical breathing air, nitrous oxide, carbon dioxide, instrument air, scavenger and suction systems designed to support the operational requirements of the healthcare environment.
The system infrastructure included specialised equipment such as medical air compressors, receivers, desiccant dryers, central scavenging units, medical vacuum suction pumps and an instrument air compressor. Supporting infrastructure also included 18 isolation valve boxes, 20 Medical Gas Alarm Panels (MGAPs), associated medical gas pipework, electrical services and automatic control systems, all documented to support safe operation, maintenance and ongoing compliance requirements.
Healthcare projects of this scale demand documentation that satisfies both the contractual handover requirements and the operational expectations of a clinical environment, where reliable building services are not simply a matter of occupant comfort but of patient safety.
To facilitate a seamless handover that met the rigorous standards of St John of God Health Care and independent certifiers, the contractor commissioned Dewick & Associates to develop an integrated Commissioning Plan and comprehensive O&M Manual specifically for the facility’s Medical Gas and Mechanical Services.
A private hospital of this scale brings together a large number of building services disciplines in a setting where commissioning and documentation standards are dictated not just by the contract but by healthcare accreditation bodies and infection control requirements.
Mechanical, electrical, hydraulic, medical gas, fire and security systems each require individual commissioning approaches and supporting documentation, and the sequencing of commissioning within a live construction programme can create pressure on documentation timelines if not managed proactively.
The challenge was to produce a commissioning plan that gave the project team a clear, auditable framework for verifying system performance before handover, and an O&M Manual that the hospital’s facilities team could rely on from day one of operations.
Dewick & Associates’ in-house technical authors produced a Commissioning Plan structured around the building services scope, providing the project team with a clear, system-by-system framework for pre-commissioning checks, functional testing and witnessing requirements. Alongside this, Dewick & Associates produced the O&M Manual covering the installed mechanical services and medical gas systems, incorporating manufacturers’ technical data, operating procedures and preventative maintenance schedules structured to support the hospital’s planned maintenance programme.
Accurate and well-structured documentation supported the successful handover and ongoing operation of St John of God Midland Private Hospital by providing facilities teams with clear access to operational procedures, maintenance information and critical asset data. This enabled a smoother transition from construction into live healthcare operations while supporting the safe and efficient management of essential building systems.
The completed O&M manuals, commissioning plans and asset documentation also provided a strong foundation for long-term maintenance, compliance and asset performance. In a complex healthcare environment, accessible technical documentation helps improve system reliability, streamline fault response and support operational continuity across critical services.
The content in this case study has been informed by project documentation and client communication provided to Dewick & Associates during and following the completion of the project. Where external sources have contributed to our understanding of relevant standards or industry practice, these are listed below.
Supplied by St John of God Midland Private Hospital.
Note: Some content in this case study draws on a combination of sources rather than direct quotation. Where this is the case, contributing sources are acknowledged above rather than cited inline.
A strategic document which outlines the process, schedule, and responsibilities for testing a building’s systems to ensure they operate exactly as designed, including:
Technical authoring of D&A format O&M Manuals enabling efficient plant operation and effective maintenance for equipment longevity, including:
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