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: 25–30 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. 25–30 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 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 pressureIf you’re a Mechanical Site Manager who can juggle HVAC, plumbing, and ventilation
Drop me a line: (url removed)
Salary description
£275.00 - £290.00 per day