Hammersmith Hospital is one of the United Kingdom’s leading teaching hospitals. The hospital delivers complex specialist care across a wide range of clinical disciplines, including cardiology, oncology, haematology and transplant services.
The hospital is undergoing a program of phased refurbishment and infrastructure upgrades to modernise its ageing estate and support long-term clinical demand. The programme is focused on maintaining safe, reliable hospital operations while progressively improving patient and staff environments, and forms part of a wider long-term strategy to future-proof healthcare facilities.
As part of ongoing capital works across the site, Dewick & Associates was engaged to author the Electrical Services O&M Manual on behalf of the project’s electrical services contractor KSE Services Limited, providing a compliant handover deliverable structured to NHS Estates standards.
By Liana Ossai
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KSE Services Limited was responsible for this project and delivered a defined scope of electrical works within a live hospital environment, operating within the strict access, infection control and patient safety protocols that apply across all NHS Trust sites. The project included the supply and installation of general power, final circuit wiring, earthing systems, RCD protection, general and specialised lighting (including medical examination lights), emergency lighting, and associated controls.
Hospital capital projects of this type require documentation partners who understand not only the technical content of an O&M Manual but also the NHS estates framework within which it will be used. The contractor engaged Dewick & Associates to produce an Electrical Services O&M Manual that would satisfy both the contractual handover requirement and the practical needs of the hospital’s in-house estates team.
Working within a live acute hospital presents documentation challenges that simply do not arise on a standard commercial project. Access to plant rooms, distribution boards and specialist electrical equipment is governed by clinical safety protocols, which means the as-installed record has to be derived from a combination of contractor data, design documentation and site observations coordinated around active ward and clinical area operations.
The documentation also needs to serve a wide range of users, from qualified electrical engineers to ward-based facilities staff, and must be structured so that it is useful across the full operational life of the installation rather than simply meeting a point-in-time contractual obligation. In a hospital setting, the consequences of inadequate or unclear maintenance documentation are felt directly in clinical service delivery.
Dewick & Associates’ in-house technical authors produced a comprehensive Electrical Services O&M Manual covering the full scope of the electrical installation, including equipment schedules, manufacturers’ technical data, operating procedures and preventative maintenance guidance. The documentation was developed to provide clear, structured and accessible information that supports the safe and efficient operation of all electrical systems within the facility, while remaining practical for both qualified engineers and non-specialist facilities staff.
To support ongoing maintenance and fault response within a live healthcare environment, the manual was organised so that individual systems and distribution zones could be easily referenced independently, allowing maintenance activities to be planned around clinical operations with minimal disruption.
The documentation was prepared in accordance with key British Standards, including BS 7671 and BS 9999, and developed with consideration to NHS Estates guidance, including relevant Health Building Notes (HBN) and Health Technical Memorandum HTM 08-03: Bedhead Services. This ensured the installed systems met required safety, performance and compliance benchmarks while supporting the operational demands of the healthcare facility.
The project resulted in a compliant Electrical Services O&M manual that supports key stakeholder groups:-
Builder and project delivery teams
It provides a complete, structured record of the installed electrical systems, supporting smooth handover, demonstrating compliance, and reducing post-completion queries or risk exposure.
Facilities and maintenance teams
It enables day-to-day operational confidence by clearly setting out system details, maintenance requirements, and safe operating procedures. This helps reduce downtime, improve response times, and support long-term asset performance.
Patient care and hospital operations
Reliable, well-documented electrical systems underpin uninterrupted clinical environments. By supporting safer maintenance and more efficient fault response, the documentation contributes directly to continuity of care and operational resilience.
To request a no-obligation quote on your next healthcare project, contact the Dewick & Associates team directly.
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.
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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.
Technical authoring of O&M Manuals enabling efficient plant operation and effective maintenance for equipment longevity, including:
Technical authoring of bespoke Maintenance Log Sheets based on site specific technical manufacturers literature including
Compliant with Building Regulations 2010, compilation of fire safety documentation to minimise fire spread, maintenance of safety systems and execute safe evacuation, including:
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