Mechanical Site Supervisor

RGB London; Greater London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading mechanical contracting firm is seeking a Mechanical Site Supervisor to oversee HVAC installations in London. The ideal candidate will have CSCS Gold Card, NVQ or C&G in Mechanical or HVAC, and SSSTS. Responsibilities include supervising installation teams and ensuring project compliance with safety standards. A competitive salary of £55,000 with benefits such as travel compensation and holiday allowance is offered.

Benefits

Travel expenses covered

Overtime available

20 days holiday plus 8 bank holidays

Qualifications

• Extensive experience in supervising mechanical installations.
• Strong knowledge of safety regulations and codes.
• Ability to oversee large teams and coordinate activities.

Responsibilities

• Supervise mechanical systems installation and maintenance.
• Ensure compliance with design specifications and safety regulations.
• Coordinate daily activities for mechanical teams.

Skills

CSCS Gold Card

NVQ or C&G in Mechanical or HVAC

SSSTS

Job description

Overview

My client are a privately owned Mechanical Contractor based in Surrey who have been operating for 26 years. As a business, they employ about 35 staff across the board and specialise in Fast Track Commercial Office Fit out projects in London with Project values ranging from £500k – £11.5Mil. They are now seeking a Mechanical Site Supervisor to join their team.

JOB SUMMARY – Mechanical Site Supervisor

Monday – Friday – 08.00 – 17.00

We are seeking a highly experienced and knowledgeable Mechanical Site Supervisor to join our team. They currently have 5 Project Managers and 10 Site Supervisors. Supervising teams of up to 20. You will be site based in London (sites are all across Central) and are Commercial Office Fit Outs and focusing on installation and commercial fit outs for AC, ventilation and associated mechanical plant. Project Values range between £500k - £11.5mil but will generally fall between £2mil - £5mil.

Responsibilities

• Supervise the installation, maintenance, and repair of mechanical systems, such as HVAC, plumbing, piping, and fire protection systems.
• Ensure that all mechanical installations comply with design specifications, codes, and safety regulations.
• Coordinate daily activities and work schedules for mechanical teams.
• Ensure all mechanical work is completed on time and within the project budget.
• Oversee the allocation of resources, tools, and materials needed for mechanical tasks.
• Perform inspections of mechanical work to ensure quality standards and compliance with safety regulations.
• Ensure that work is performed to the highest quality, meeting industry standards and client expectations.
• Enforce site safety regulations and protocols.
• Conduct safety audits and risk assessments.
• Monitor the use of personal protective equipment (PPE) and other safety measures.
• Ensure all mechanical work is carried out safely to prevent accidents or injuries.
• Supervise mechanical tradespeople, including plumbers, HVAC technicians, and pipefitters.
• Provide guidance and technical support to workers on-site.
• Offer training on best practices and safety standards.
• Act as the point of contact between the mechanical team and other departments, such as electrical, civil, and project management teams.
• Address any issues that arise during the construction or installation process, particularly mechanical failures or design discrepancies.
• Proactively solve problems and minimize project delays caused by mechanical issues.
• Maintain accurate records of work completed, including inspections, maintenance reports, and safety logs.
• Document any changes or modifications to mechanical plans.
• Prepare and submit reports on the progress and status of mechanical work.
• Ensure all mechanical installations comply with relevant codes, standards, and regulations (local, national, and international).
• Stay updated on changes in codes and regulations to ensure the project remains compliant.
• Assist in estimating project costs and the resources needed for mechanical works.
• Monitor expenditures related to mechanical systems and ensure projects stay within budget.

Qualifications

• CSCS Gold Card
• NVQ or C&G in Mechanical or HVAC
• SSSTS

Salary & Benefits

£55,000

Travel expenses to site covered

Overtime Available

20 Days Holiday & 8 Bank Holidays (increases to 25 Days after 2 years service)

Pension Scheme

How to Apply

PLEASE CONTACT SEAN HITCHMAN ON (phone number removed) / SHITCHMAN @ RGB.CO .UK

Job Info

Job Title: Mechanical Site Supervisor

Company: RGB London

Location: London

Posted: Sep 22nd 2025

Closes: Oct 23rd 2025

Sector: Construction

Contract: Permanent

Hours: Full Time

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