• Rows of industrial air conditioning units and piping on a rooftop under a clear blue sky. Diagonal lines in various colors overlay the image, adding a geometric design element.

    Hard FM Services

    With large mobile and site based engineering teams operating across multiple countries, OCS Hard Services supports both multi site, route based delivery and dedicated on site engineering for individual locations and projects.

    Find Your Local Team
A woman wearing a dark blue jacket stands confidently with her arms crossed in an industrial setting, surrounded by large blue tanks and various pipes and control panels.

Hard Services Expertise Across Sectors

In house capabilities span mechanical, electrical and plumbing services, HVAC installation and maintenance, prefabrication, structural upkeep, and decarbonisation and energy related solutions.

These services support the safe operation, efficiency and long term resilience of critical infrastructure and essential facilities across multiple regions and sectors.

Capital Projects
Planned & Preventative Maintenance (PPM)
Reactive Maintenance & Minor Works
Find Your Local Team

Delivering Capital Projects, Planned Maintenance, Reactive Repairs and Minor Works

  • Three construction workers in high-visibility jackets and hard hats stand in a field, reviewing plans on a clipboard. Industrial scaffolding and cloudy skies are in the background.

    Capital Projects

    Large scale capital programmes are delivered from early design through to completion, covering construction, refurbishment and renewal. This approach supports long term efficiency, resilience and compliance across a wide range of environments.

  • A worker in high-visibility clothing and a hard hat uses a tablet to inspect an open electrical panel. The panel contains wires and circuit breakers. The setting appears to be an industrial or construction site.

    Planned Preventative Maintenance (PPM)

    Planned inspections and servicing reduce the risk of failure and unplanned disruption. Maintenance programmes can follow statutory requirements, integrate with customer systems, or be tailored using data led insights.

  • Two workers wearing safety gear inspect machinery in an industrial setting with a network of grey pipes and valves overhead. The sky is partly cloudy in the background.

    Reactive Maintenance

    Specialist teams respond quickly to diagnose and resolve issues, reducing downtime and supporting continuity of operations. Delivery is coordinated through flexible workforce planning and live routing.

  • Two individuals wearing hard hats and orange safety vests work on rooftop HVAC units. One person kneels and uses a tool on a unit, while the other stands in the background. A cityscape is visible in the distance. Sky is clear and sunny.

    Minor Project Works

    Smaller scale works such as lighting upgrades, plant replacement and fit outs are delivered to improve reliability, efficiency and day to day performance across occupied sites.

Technical Services

Move beyond reactive maintenance to support resilient, safer and more sustainable operations that align with long term organisational priorities.

Find Your Local Team
  • Mechanical, Electrical and Plumbing

    Mechanical, Electrical and Plumbing

    MEP services covering design, installation and maintenance to support performance and compliance.

  • Fire Safety and Security Systems ​

    Fire Safety and Security Systems ​

    Design, installation, testing and maintenance of critical life safety and security systems.

  • Heating, Ventilation, and Air Conditioning (HVAC)

    Heating, Ventilation, and Air Conditioning (HVAC)

    Climate control services for large scale facilities and critical environments.

  • Building Fabric Maintenance

    Building Fabric Maintenance

    Building fabric maintenance supporting safety, durability and operational requirements.

  • Asset and Lifecycle Management

    Asset and Lifecycle Management

    Asset management across the full lifecycle, aligned to ISO 55000 principles.

  • Mobile Delivery and Help Desk

    Mobile Delivery and Help Desk

    Mobile engineering teams and a central help desk coordinating planned and responsive activity across regions.

Energy Services

Supporting progress towards net zero through a focus on sustainability, efficiency and carbon reduction.

  • Two workers in orange safety vests and white helmets stand between rows of solar panels, inspecting them. The panels are aligned in a field under a clear blue sky, capturing sunlight for energy.

    Energy Reporting, Compliance and Net Zero Consultancy Services

    Energy reporting, compliance and net zero advisory services supporting regulatory requirements and sustainability objectives.

    Find out more
  • A person wearing a white hard hat, safety goggles, and an orange safety vest is using a tablet in an industrial setting. They are standing indoors with a blurred background of metal beams and machinery.

    Smart Building and Asset Optimisation

    Technology-led insights supporting efficient operation, energy use and asset performance.

    Find out more
  • Pipes with red and black protective coatings are secured in a metallic structural frame outdoors. Silver clamps and bolts fasten the pipes, which are positioned parallel to each other, with clear skies visible in the background.

    Decarbonisation and Energy Efficiency Projects

    Engineered projects focused on reducing energy use, carbon emissions and operating costs while supporting long term resilience.

    Find out more
  • A worker wearing a white hard hat and orange safety vest kneels on a solar panel installation, examining a tablet. The sky is clear and blue, reflecting off the solar panels.

    Low Carbon Energy Solutions

    Low carbon infrastructure including electric vehicle charging, solar PV, battery storage and renewable heat networks.

    Find out more

Capital Projects

Delivering large scale capital projects through sustainable, efficient and resilient construction and refurbishment approaches.

Find Your Local Team
  • End-to-End Design and Build Projects

    End-to-End Design and Build Projects

    Design and build delivery covering the full project lifecycle, aligned to infrastructure needs and operational requirements.

  • Lifecycle Replacement Programmes

    Lifecycle Replacement Programmes

    Planned asset replacement programmes supporting efficiency, reliability and cost control across the asset lifecycle.

  • Plant Replacement and Modernisation

    Plant Replacement and Modernisation

    Replacement and modernisation of critical plant to support performance, compliance and operational continuity.

  • Communications and Network Infrastructure

    Communications and Network Infrastructure

    Design, installation and management of fibre, LAN, wireless and IP telephony networks for complex and critical environments.

  • High Voltage (Above 33kV)

    High Voltage (Above 33kV)

    High voltage engineering above 33kV supporting secure power distribution, infrastructure resilience and safety.

  • Total Facilities Management

    Total Facilities Management

    Facilities management services supporting the long term operation and value of capital investments.

Proven, Trusted, Accredited

Certified to recognised international standards, teams apply structured training and accredited practices to support safe, consistent and compliant delivery. Independent audits and externally recognised approaches provide assurance that quality, safety and performance are applied consistently in practice.

OCS Latest News and Insights

Stories of our people, progress, technology and ESG

Find Your Local Hard Services Team

Find the right point of contact for your region to discuss operational requirements, service delivery and ongoing support. Teams are available to provide information and guidance aligned to local environments and regulatory frameworks.

Connect With Your Local Team