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Mill Hill

As principal contractor on a successful CIF (Condition Improvement Fund) bid, Leodis were tasked with delivering a full mechanical and electrical upgrade across four plant rooms. Works included the installation of replacement boilers, primary distribution pipework, pumps, and controls, alongside new heat emitters, air conditioning systems, solar panels, electric showers, and point-of-use hot water units. Mobilised within two weeks, the project was completed on an accelerated 14-week programme, ensuring minimal disruption and maximum efficiency.

Value£800,000

LocationLondon

SectorEducation

DisciplineMEP

Challenges

One of the biggest challenges was the late appointment, with mobilisation required just two weeks before the planned start date. This created immediate pressure around labour planning, supply chain coordination and securing key materials during the busy summer holiday period, when demand and stock availability were already heavily constrained.

The school holiday timing also impacted the project from a decision-making perspective, with several key stakeholders and decision makers on extended leave during critical stages of the programme. This required proactive communication, fast turnaround of approvals where possible, and careful management of site progress to avoid delays.

Technically, the absence of accurate as-built drawings created further complexity, particularly when routing new heating distribution pipework through existing buildings. Extensive on-site investigation and real-time problem solving were required to identify viable routes while minimising disruption to the fabric of the buildings and maintaining progress on programme.

Electrical infrastructure also presented challenges, with incoming power supplies found to be below the levels assumed within the original specification. This meant certain buildings required revised solutions and additional design input to ensure new systems could be installed safely and effectively. In addition, late heat loss survey results led to a last-minute change in scope and an adjustment to the renewable technologies being installed, requiring rapid redesign and procurement changes while maintaining the overall delivery programme.

Despite these pressures, the project was successfully completed within the accelerated timescales, delivering upgraded, efficient and future-ready building services across the site.

Our Approach

This project was secured at very short notice, creating an immediate challenge around mobilisation, procurement and programme certainty. With much of the originally specified manufacturer equipment unavailable and supply chain resources heavily committed during the summer holiday period, we adopted a flexible and solutions-led approach from day one.

To maintain delivery timescales, we committed significant internal management and operational resource to support what was effectively an away project, ensuring strong control of labour, logistics and coordination throughout. Where specification changes were necessary, we carefully selected reputable alternative manufacturers and products that met performance requirements while protecting programme and budget.

Communication and approvals were also challenging due to holiday absences and delayed decision-making. We responded with proactive reporting, regular updates and agile planning, allowing progress to continue wherever possible.

The Solution Delivered

We successfully redesigned elements of the scheme to suit the realities of the site and programme. This included sourcing fan convector radiators capable of fitting within strict space constraints while still achieving the required heat outputs identified through heat loss calculations.

The project also marked our first time delivering solar PV installations as Principal Contractor. By thoroughly vetting our supply chain in advance, we secured an excellent specialist subcontractor who integrated seamlessly into the wider delivery team and helped support the decarbonisation objectives of a non-gas school estate.

Where incoming electrical services were found to be insufficient for elements of the revised specification, we adapted the design to ensure capacity could support priorities such as inverter supplies and new electric showers within the gym facility.

To recover time lost through delayed approvals and evolving decisions, our teams worked extended days and adjusted sequencing on site, allowing the project to remain on target for completion while protecting commercial performance.

Outcomes

Despite the compressed lead-in period and multiple technical challenges, the project was delivered on time and to the targeted overhead and profit expectations. The school received upgraded, efficient and future-ready building services aligned with its operational needs and decarbonisation goals.

Our ability to remain calm under pressure, redesign quickly and deliver successfully at short notice was recognised by the wider project team. We received special recommendations for future work from the Contract Administration team, which directly led to additional opportunities within the education sector.

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