Air Conditioning Mobile Service Engineer

WR HVACR; Greater London; On-site; GBP 40,000 - 45,000; Full time

Job summary

A leading HVAC contractor is looking for an experienced Mobile Service Engineer to join their London-based team. The role involves servicing and maintaining HVAC systems across critical sites in central London. Key requirements include NVQ Level 2 in Air Conditioning and F-Gas certification. The position offers a competitive salary, overtime opportunities, and additional benefits like a company van and tools. Ideal candidates should have service experience and a full UK driving licence.

Benefits

22 days annual leave plus bank holidays

Company van and fuel card

Specialist refrigeration tools provided

Qualifications

• Minimum City & Guilds NVQ Level 2 / Part 2 in Air Conditioning required.
• F-Gas certification is essential for this role.
• Proven service experience on HVAC systems such as splits, VRVs, and chillers is necessary.

Responsibilities

• Carry out planned preventative maintenance and reactive repairs on HVAC systems.
• Service and maintain a variety of HVAC and mechanical systems.
• Work across high-profile sites, including signal centres and data centres.

Skills

Service experience on HVAC systems

Ability to supply hand tools

Willingness to work across London

Education

City & Guilds NVQ Level 2 / Part 2 in Air Conditioning

F-Gas certification

Tools

General tool kit

Thermometer

Multimeter with amp clamp

PASMA and IPAF

Job description

Mobile Service Engineer - Air Conditioning / HVAC

An established and reputable HVAC contractor specialising in rail and critical infrastructure projects is looking to recruit an experienced Mobile Air Conditioning Service Engineer to join their growing London-based service team.

This is a mobile, service-focused role covering central London and surrounding areas, working across high-profile and technically interesting sites. A large proportion of the work is within the railway environment, with full rail training, competencies, and certification provided.

Role

As a Service Engineer, you will carry out planned preventative maintenance, reactive repairs, and minor planned works across a range of critical and high-profile sites including signal centres, data centres, stations, maintenance depots, train care depots, and remote track-side locations.

The role involves servicing and maintaining a variety of HVAC and mechanical systems such as split systems, VRV / VRF, chillers, AHUs, LTHW, chilled water, and ventilation plant. The position is predominantly service and maintenance focused; engineers are not typically required to undertake installation works.

Package

Salary: Up to £40,000-£45,000

Overtime: Time and a half. Double time for nights and bank holidays.

On‑call rota: 1 week in every 8 (approx.), £125 standby payment per week. Minimum 4 hours paid per call‑out.

Working hours: Door‑to‑door working. 9.5‑hour minimum day. 30 minutes unpaid travel each way + 30 minutes unpaid lunch.

Holiday: 22 days annual leave plus bank holidays plus an additional birthday day off.

Company van & fuel card, company smartphone (used for calls, emails, and electronic job management system), specialist refrigeration tools provided.

Requirements

Minimum City & Guilds NVQ Level 2 / Part 2 in Air Conditioning.

F‑Gas certification (essential)

Proven service experience on HVAC systems such as splits, VRVs, chillers, AHUs, LTHW, or chilled water.

Full UK driving licence

Willingness to work across London and attend rail / track‑side locations (training provided).

Ability to supply hand tools, including:

• General tool kit
• Thermometer
• Multimeter with amp clamp
• PASMA and IPAF

Certifications are advantageous but not essential.

Additional Information

Overtime is expected as part of the role; occasional Saturdays or nights may be required, though not frequently. Adequate rest periods are always provided.

Railway medical, drugs & alcohol screening, and DVLA licence check are required prior to any formal job offer.