The Heights, Weybridge

Project Overview

Jaguar Projects were awarded the contract to replace multiple items of mechanical plant across two buildings within a fully operational business campus, as the existing equipment had reached the end of its serviceable life. The works included the replacement of chillers, air handling and extract units, energy-efficient thermal wheels and run-around coils, LTHW boilers and burners, CHW and LTHW pumps, and a full BMS upgrade to integrate and control the new plant.

Scope of Works

The project required the replacement of major plant infrastructure within two occupied buildings at The Heights business campus. Careful phasing and detailed planning ensured continuity of services throughout the works, minimising disruption and maintaining normal business operations for all tenants.

All pumps serving AHU heating and cooling circuits, fan coil units, and CHW/LTHW primary systems were replaced, including associated valves, pipework, and ancillaries. Works were delivered in a phased sequence, ensuring a duty pump remained active at all times to maintain system performance.

Four complete AHUs and six extract units were replaced. Two of the AHUs were upgraded to combined supply/extract units featuring energy-saving thermal wheels for heat recovery. The remaining two were installed with run-around coil systems to provide additional efficiency gains. Installation required coordinated scaffolding, selective façade removal, craneage, and fabrication of new ductwork to suit the replacement units.

Five chillers were replaced as part of the project. Temporary chillers were deployed supported by scaffold risers, temporary pipework, and temporary BMS connections to maintain chilled water services throughout the programme. Due to the plant’s location, significant crane operations were required for both the temporary and permanent equipment.

Three of the five LTHW boilers were identified as beyond economical repair and were replaced with high-efficiency condensing models. The remaining two serviceable boilers received new burners. Works included all associated gas and hydraulic pipework modifications, valves, and ancillary components.

The building management system was upgraded to reflect and control the new plant both graphically and via updated software. New controllers were installed, along with a new head-end within one of the buildings, ensuring centralised monitoring and enhanced control capability.

All pipework was flushed, dosed, and commissioned in accordance with the design specifications. Airflows from the new AHU systems were balanced and validated. Full pre- and post-project testing confirmed compliance with design intent and performance criteria.