Mobile AC Engineer

Build Recruitment Limited; City Of London; On-site; GBP 45,000 - 55,000; Full time

Job summary

Build Recruitment Limited is recruiting a Mobile AC Engineer in London to service and repair HVAC systems across multiple sites. The role operates Monday–Friday with a competitive base salary and overtime potential, offering career development within a established facilities management environment.

Applicants should have F-Gas certification, proven HVAC maintenance experience, and hands-on work with AHUs and FCUs. A strong focus on safety, communication and efficient reporting is essential.

Qualifications

• F-Gas certification is required.
• Experience in HVAC, air conditioning and building services maintenance.
• Practical experience with AHUs and FCUs.
• Mechanical systems knowledge; electrical/plumbing knowledge is a plus.
• Strong communication, organisation and problem-solving skills.
• Ability to manage own workload and work independently.
• Proactive, flexible and solutions-focused approach.
• Ability to build and maintain client relationships.

Responsibilities

• Carry out planned preventative maintenance and reactive repairs on HVAC plant and equipment.
• Maintain and repair AHUs and FCUs.
• Complete job reports, risk assessments and other required documentation using a PDA or relevant systems.
• Identify and report additional remedial works when required.
• Liaise with clients regarding completed works and future maintenance needs.
• Keep contract managers and office teams informed of site activities and equipment changes.
• Provide technical support to colleagues and assist with wider maintenance requirements.
• Ensure all work is carried out in line with health and safety procedures and industry standards.

Skills

F-Gas certification

HVAC experience

AHU/FCU experience

Mechanical systems knowledge

Client communication

Independent/workload management

Proactive/problem-solving

Relationship building

Tools

PDA

Job description

Mobile AC Engineer

Location: London
Salary: Up to £50,000 basic OTE £60,000–£65,000 with overtime
Working Hours: Monday–Friday, 8:00am–5:00pm

We’re recruiting forMobile AC Engineers to join an established building services and facilities management organisation operating across London.

These are excellent opportunities for experienced HVAC engineers looking for a stable, Monday-to-Friday role with competitive earning potential and the opportunity to develop their careers.

Mobile AC Engineer

• Working across multiple sites in Central London and the surrounding areas.

• Company van and fuel card provided.

• Monday to Friday, 8:00am–5:00pm.

• Salary up to £50,000 basic, with overtime opportunities taking OTE to £60,000–£65,000.

Start date: As soon as possible.

Key Responsibilities

• Carry out planned preventative maintenance (PPM) and reactive repairs on HVAC plant and equipment.

• Maintain and repair air handling units (AHUs) and fan coil units (FCUs).

• Complete job reports, risk assessments and other required documentation using a PDA or relevant systems.

• Identify and report additional remedial works where required.

• Liaise professionally with clients regarding completed works and further maintenance requirements.

• Keep contract managers and office teams informed of site activities and equipment changes.

• Provide technical support to colleagues and assist with wider maintenance requirements.

• Ensure all work is completed in accordance with health and safety procedures and industry standards.

What We’re Looking For

• Relevant industry qualifications, including F-Gas certification.

• Proven experience in HVAC, air conditioning and building services maintenance.

• Practical experience working with AHUs and FCUs.

• Good knowledge of mechanical systems, with basic electrical and plumbing knowledge desirable.

• Strong communication, organisational and problem-solving skills.

• The ability to manage your own workload and work independently.

• A proactive, flexible and solutions-focused approach.

• The ability to build and maintain positive client relationships.