Job Description

Job Title: Mobile Mechanical Service Engineer (HVAC/AHU) – Electrical Qualified
Location: London (99% within M25)
Salary: Up to £48,000 per annum + overtime + standby allowance
Contract Type: Permanent, Full-time
Working Hours: 8:00am to 5:00pm
Call-Out Rota: 1 week in 7
Reporting To: Operations Manager

Valoris Group is recruiting for a Mobile Mechanical Service Engineer with a strong HVAC and AHU focus, who is electrically qualified to support a growing building services provider across London and the M25. This field-based role is suited to an engineer who is primarily mechanically led in day-to-day work across plant and HVAC systems but holds solid electrical qualifications to support safe isolation, fault finding, inspection, and compliance tasks.

Role Responsibilities

Mechanical & HVAC Maintenance (Primary Focus)

Deliver planned, reactive, and statutory maintenance on HVAC plant and mechanical systems across client sites.

Service, fault find, and maintain Air Handling Units (AHUs), Fan Coil Units (FCUs), ventilation systems, pumps, motors, and associated mechanical plant.

Carry out belt changes, bearing replacements, filter changes, lubrication, and general mechanical servicing.

Diagnose faults across mechanical plant including airflow issues, vibration, and system inefficiencies.

Maintain and repair mechanical components linked to heating, ventilation, and chilled water systems.

Work on plant room equipment including valves, actuators, and pipework systems.

Electrical Duties & Compliance (Qualified Support Role)

Carry out safe isolation of mechanical plant and electrically driven equipment.

Support electrical fault finding on motors, control panels, and associated HVAC systems.

Conduct electrical inspection, testing, and compliance tasks where required.

Complete minor electrical works linked to mechanical plant maintenance.

Produce accurate certification and documentation including EICRs, test results, and remedial reports.

Ensure all works comply with 18th Edition Wiring Regulations (BS7671) and health and safety standards.

Inspection & Operational Delivery

Attend multiple sites as directed by the Service Desk.

Identify and report remedial works and compliance issues.

Respond to emergency callouts and complete urgent repairs efficiently and safely.

Provide clear updates and technical guidance to clients on-site.

Maintain accurate service records using mobile job management systems.

Participate in the on-call rota and provide occasional out-of-hours support when required.

Essential Qualifications

NVQ Level 3 in Electrical Installation or Maintenance

18th Edition Wiring Regulations (BS7671)

City & Guilds 2391 Inspection & Testing (or equivalent)

Full UK Driving Licence

Desirable Qualifications

HVAC or mechanical engineering qualifications

F-Gas awareness

IPAF and/or PASMA

Experience working with BMS interfaces and control systems

Experience Required

Minimum 3 years experience working within building services maintenance

Strong hands-on experience working on HVAC systems, AHUs, FCUs, pumps, and ventilation plant

Electrically qualified with experience in isolation, testing, and fault finding

Experience working across commercial environments

Experience delivering both planned preventative maintenance and reactive callouts

Previous mobile role experience advantageous

Skills & Competencies

Strong diagnostic and fault-finding ability across HVAC and plant systems

Confident working on electrically driven mechanical equipment

Ability to interpret mechanical drawings and electrical schematics

IT literate and confident using mobile job management systems

Clear communication and professional client-facing approach

Ability to work independently and as part of a wider service team

Personal Attributes

Reliable with a strong work ethic

Adaptable and flexible to operational needs

Customer-focused and professional

Team player with a proactive mindset

Physical Requirements

Physically fit and comfortable lifting equipment

Able to work at height and in confined spaces

Willingness to travel across multiple sites within the M25

Package & Benefits

Salary up to £48,000 per year

Overtime paid at time and a half or double time

£150 standby allowance (1 in 7 call-out rota)

25 days annual leave + bank holidays

Company pension

Generous sick pay and accident insurance

Life assurance (2x salary)

Private GP access and Employee Assistance Programme

Annual eye care reimbursement

Loyalty bonus after 2 years service

Ongoing training, mentoring, and development support

Reward and recognition schemes

Company events

Eligibility

Must have the right to work in the UK

Full UK Driving Licence required