Site Manager (Water Treatment Works)

Location: Windsor 

Rate: £400 – £450 per day (LTD / Outside IR35)

Duration: 3 Months Initial (Strong potential to move onto subsequent framework schemes)

Start Date: Immediate / ASAP

Project Overview

We are seeking an experienced Site Manager to oversee the construction phase of a new extension to an operational Water Treatment Works (WTW).

You will join a fully resourced, collaborative site team—working alongside a Senior PM, PM, Project Engineer, General Foreman, and Supervisors—to drive front-line delivery, subcontractor performance, and rigorous site safety standards.

Key Responsibilities

• Site Delivery: Manage day-to-day site operations for the building extension, coordinating civils, RC structures, groundworks, and building envelope workstreams.

• Team & Subcontractor Leadership: Direct trade gangs and subcontractors, working in tandem with the General Foreman and Supervisors to keep production aligned with short-term lookaheads.

• Health, Safety & Environment: Enforce strict water sector safety standards, manage daily site inductions, sign off on RAMS, and maintain safe working interfaces around live plant assets.

• Quality & Progress Tracking: Oversee Inspection and Test Plans (ITPs), manage site logistics, log daily diaries, and report progress directly to the Project Manager.

Requirements & Qualifications

• Experience: Proven track record as a Site Manager delivering civil engineering or building extensions within the UK water sector (WTW / WwTW).

• Leadership: Strong subcontractor management skills and a collaborative approach working alongside established engineering and management teams.

Mandatory Certifications

• SMSTS (Site Management Safety Training Scheme)

• CSCS Card (Management / Black or Gold)

• EUSR Category 1 & 2

• First Aid 

Desirable Certifications

• TWC (Temporary Works Coordinator)

• AP (Authorised Person - Mechanical / Electrical / Pressure Systems)

If this is a role that interests you please apply or reach out directly.