Mechanical Site Manager - Bristol

Mechanical Site Manager (HVAC / Building Services)

Read the overview of this opportunity to understand what skills, including and relevant soft skills and software package proficiencies, are required.
Location: Bristol City Centre
Contract Type: 12-month freelance / contract
Day Rate: £275 £290 per day
Project Value: £3m Mechanical Package
Reporting To: Visiting Project Director
Team Size: 2530 operatives (Plumbing, Ventilation, AC teams)
Role Overview
We are seeking an experienced Mechanical Site Manager to oversee the delivery of a £3m building services package on a large commercial project in Bristol City Centre.
You will act as the on-site lead for all mechanical works, coordinating and managing subcontract labour across HVRF, plumbing, ventilation, and associated building services disciplines. The role sits within a subcontractor environment and requires strong site leadership, coordination, and delivery focus.
You will be responsible for managing multiple trade gangs, ensuring programme adherence, quality control, health & safety compliance, and smooth coordination with the main contractor and visiting project director.
Key Responsibilities

• Lead day-to-day site delivery of all mechanical building services works
• Manage and coordinate approx. 2530 operatives across:
  • HVRF installation teams
  • Ventilation ductwork teams
  • Plumbing & pipefitting teams
• Oversee installation of:
  • AHUs (Air Handling Units)
  • HVRF systems
  • Domestic Hot Water (DHW) systems
• Ensure works are delivered in line with programme, drawings, and specifications
• Attend and contribute to site meetings with main contractor and client team
• Manage subcontract labour performance, sequencing, and productivity
• Enforce strict Health & Safety compliance on site
• Complete site reporting, progress updates, and coordination documentation
• Coordinate materials, logistics, and site deliveries
• Support commissioning readiness and handover processes

Required Experience

• Proven experience as a Mechanical Site Manager on large-scale building services projects
• Strong background in:
  • Plumbing & pipefitting
  • Heating systems
  • Ventilation / ductwork
  • HVRFinstallation
• Previous experience working on subcontractor packages within main contractor environments
• Exposure to commercial or large residential developments (ideally £1m+ mechanical xwzovoh packages)
• Strong understanding of site coordination, sequencing, and trade management
• Experience working with AHUs, HVRF systems, and DHW systems

Essential Certifications

• SMSTS (Site Management Safety Training Scheme)
• CSCS Card (Black or Gold preferred)
• Valid First Aid at Work

Key Competencies

• Strong leadership of multiple trade gangs
• Ability to read and interpret mechanical drawings
• Commercial awareness of programme-driven delivery
• Confident reporting into senior project leadership
• Strong H&S enforcement mindset
• Calm, organised, and delivery-focused under pressure

If youre a Mechanical Site Manager who can juggle HVAC, plumbing, and ventilation
Drop me a line: