Mechanical Site Manager

TLG Infrastructure Limited; Cambridge; On-site; GBP 100,000 - 125,000; Full time

Job summary

A leading M&E contractor is seeking an experienced Mechanical Site Manager for a prestigious 18-month laboratory fit-out project in Cambridge. The role involves overseeing mechanical installations, supervising subcontractors, and ensuring compliance with health and safety standards. Candidates should have proven experience and a strong understanding of mechanical building services. This is a freelance position offering £300 - £350 per day, starting in January 2026.

Benefits

£300 - £350 per day (Outside IR35)

18-month project duration

Qualifications

• Proven experience as a Mechanical Site Manager on commercial or laboratory projects.
• Strong understanding of mechanical building services including HVAC, pipework, and public health systems.
• Experience working with M&E contractors on large-scale projects.

Responsibilities

• Oversee and coordinate all mechanical installation works on-site.
• Supervise subcontractors, ensuring quality and adherence to deadlines.
• Manage day-to-day site activities including planning, scheduling, and progress reporting.

Skills

Mechanical building services understanding

Communication skills

Leadership skills

Job description

Overview

Mechanical Site Manager
Location: Cambridge
Rate: £300 - £350 per day (Outside IR35)
Contract Type: Freelance - CIS or Ltd Company
Duration: 18 months
Start Date: January 2026

Company Overview
Our client, a respected M&E contractor with a strong track record in delivering technically complex projects, is seeking an experienced Mechanical Site Manager to oversee a high-specification laboratory fit-out project in Cambridge.

This long-term freelance opportunity (18 months) offers a stable contract on a prestigious and technically challenging scheme, working with a professional project team to deliver excellence in quality, safety, and performance.

The Role

Reporting into the Project Manager, you will be responsible for managing all on-site mechanical activities, ensuring the smooth coordination and delivery of mechanical services in line with design, specification, and programme requirements.

Responsibilities

• Oversee and coordinate all mechanical installation works on-site
• Supervise subcontractors, ensuring quality and adherence to deadlines
• Manage day-to-day site activities, including planning, scheduling, and progress reporting
• Ensure compliance with health, safety, and environmental standards
• Liaise closely with the Project Manager, Design Team, and client representatives
• Conduct inspections and sign-off on mechanical installations
• Manage materials, logistics, and site resources efficiently
• Support commissioning and handover processes
• Maintain accurate site documentation and reports

Qualifications

• Proven experience as a Mechanical Site Manager on commercial or laboratory projects
• Strong understanding of mechanical building services, including HVAC, pipework, and public health systems
• Experience working with M&E contractors on large-scale projects
• Excellent communication, coordination, and leadership skills
• SMSTS and CSCS certification (preferred)
• Ability to work to deadlines with a proactive, hands-on approach
• Available to start January 2026

Benefits

• £300 - £350 per day (Outside IR35)
• Freelance contract - CIS or Ltd Company
• 18-month project duration
• Opportunity to work on a cutting-edge lab fit-out with a leading contractor
• If you're an experienced Mechanical Site Manager looking for a long-term freelance role on an exciting project, we'd love to hear from you.
• Apply today or contact us for more information