Cold Water Main Installation

Introduction

Fry Site Services, part of the Fry Group, has successfully delivered a significant infrastructure upgrade involving the installation of a six hundred and ninety three metre cold water main and boosted supply system across a live school campus. The works were carried out during the half‑term break, with a strict programme window and a requirement to hand back the full site before pupils and staff returned. Through careful planning, precise execution and coordinated teamwork, the project was delivered ahead of schedule and with a high standard of reinstatement across all affected areas.

Careful mobilisation and preparation

Before any excavation took place, the team completed a full mobilisation of workforce, plant and equipment. The project required a controlled and organised start due to the size of the trench route and the varied surfaces it crossed. Heras fencing was installed to segregate working zones and protect any areas that would remain accessible during half‑term activity. Establishing a clearly defined and tidy worksite was essential, particularly within an educational setting.

During mobilisation, coordination with other Fry Group companies began. Recmat provided logistical support for waste away and the delivery of material required for reinstatement. Their involvement ensured that excavation arisings could be removed promptly and that replacement materials were available exactly when needed. Their service information is available at RecMat. Alongside them, Fry MM supported the site with larger deliveries and muck away requirements, helping to keep the programme tight and allowing the excavation teams to progress without delay. Fry MM information can be found at Fry MM.

Pre excavation surveys and service identification

With the school campus containing numerous service routes, a full survey was carried out before digging commenced. CAT scanning was completed along the entire length of the planned trench, with surface markings applied to identify all known services including electrical lines, communications ducts and existing water infrastructure. This preliminary work ensured the excavation could begin safely and that the trench route could be shaped around fixed utilities without compromising the installation.

The findings of these surveys were reviewed in detail with Fry MEP, whose technical understanding of the boosted water system and its connection points helped to refine the trench path and ensure all isolation points, chambers and service tie‑ins aligned with the mechanical design. Fry MEP’s support added an important layer of technical assurance to the project. Their details are available at Fry MEP.

Excavating the six hundred and ninety three metre trench

Once surveys were completed, excavation began. The trench ran across a range of surfaces including tarmac, paving and grassed areas, each requiring a slightly different technique for clean removal and reinstatement. Safe diggers and dumpers fitted with beacons were used throughout to ensure visibility and maintain safety within the school environment.

The trench reached depths of up to eight hundred millimetres, with operators maintaining consistent depth and width while navigating the varied surface conditions. As excavation progressed, arisings were removed swiftly with support from Recmat and Fry MM, ensuring that the trench remained accessible and tidy at all times. Good waste and material logistics can make or break a project of this scale, particularly when working under a tight programme window, and their involvement was instrumental to maintaining momentum.

Installation of the new pipework

The new MDPE pipework was then installed along the full trench route. The size transitioned from sixty three millimetres to thirty two millimetres depending on the supply requirement for each school block. Electrofusion joints were used throughout, providing a durable, long‑term connection method that supports the performance and lifespan of the system.

External stopcock chambers were installed at each block to allow individual isolation of the school buildings. This will give the site team improved control of water distribution in future. The pipework was laid on a sand bedding to protect it and ensure an even, cushioned base. Warning tape was placed along the full length of the trench to provide a clear marker for any future excavation teams.

During this stage, Fry MEP provided valuable technical guidance, ensuring the installation matched the mechanical specification and that isolation points and booster arrangements were prepared for future commissioning. Their oversight ensured the pipework installation was fully aligned with the operational requirements of the upgraded system.

Reinstatement of hardstanding and soft surfaces

Following pipe installation, reinstatement works began immediately. The project required careful reconstruction of both hard and soft surfaces to return the school campus to its pre‑works condition.

Hardstanding areas were reinstated using a combination of selected excavated material and fresh aggregate where required. Once compacted, these areas were completed with hot lay tarmac to create a clean, robust finish that blended seamlessly with the original surface.

Soft ground areas were reinstated with a minimum of one hundred and fifty millimetres of topsoil. The reinstated ground was levelled and prepared for seeding, ensuring it can re‑establish naturally over time. This soft landscaping work helped restore the visual continuity of the school environment.

Throughout reinstatement, Recmat and Fry MM continued to support the movement of materials and waste, ensuring the final stages of the programme progressed efficiently.

During and after the work

Clean handover and site presentation

Once reinstatement was complete, all working areas were cleaned and jet‑washed. Pathways, play spaces and access routes were left free from debris, with the entire campus handed back in a neat and fully operational condition.

Maintaining a clean handover is particularly important in educational settings, and the tidy presentation of the final works was well received by the client.

A successful outcome delivered ahead of programme

The project delivered a fully upgraded cold water main and boosted supply system across multiple school blocks, with improved isolation capability and reliable distribution for the years ahead. Most importantly, the entire six hundred and ninety three metre trenching and installation programme was completed ahead of schedule during the half‑term break, avoiding any disruption to teaching activity.

This scheme is an excellent example of what can be achieved through strong planning, coordinated teamwork and disciplined delivery. With support from Recmat, Fry MM and Fry MEP, Fry Site Services delivered a complex infrastructure upgrade safely, efficiently and to a consistently high standard.

Call the team

0330 4415 405

Email us

enquiries@frysiteservices.co.uk

Get in touch