Apprentice Air Conditioning Engineer

Who is Size Group?

Launched in 2009 as a small construction venture between two friends, Size Group brings together the vital elements of property from the construction of luxury buildings through to the maintenance and management of a property portfolio.

We are looking for an enthusiastic and energetic Apprentice Air Conditioning Engineer to join our growing Property Care team on a permanent, full-time basis.

The Benefits

We offer:

• Auto enrolment to company pension scheme (opt-out option available)

• Private medical insurance

• Critical illness insurance

• 26 days annual leave

• Travel expenses for site-based staff

As part of a growing group with ambitious plans, you’ll benefit from strong leadership support, visible career progression, and the chance to help shape the success of our most high-profile projects.

The Culture

At Size Group our values underpin who we are. They form an important benchmark for everyone – collectively and individually. We are:

Empathetic - People-driven and focused
Tenacious - Relentless pursuit of the highest standards
Integrity - Integrity earns trust. Trust builds relationships
Entrepreneurial - Self-starters that push beyond the obvious

We boast a culture that is focused on training and development, career paths and internal progression. What’s more, we’re committed to our employees and offer a range of benefits to support your lifestyle both in and out of the workplace.

The Role
We are looking for a motivated and reliable individual to join our growing Building Services division as an Apprentice Air Conditioning Engineer. This is an excellent opportunity to build a long-term career within the air conditioning and wider building services industry.

Working alongside experienced engineers, you will gain hands-on experience in installing, maintaining and repairing a wide range of air conditioning systems across high-end residential and commercial properties in London.

No prior air conditioning experience is required, just a strong work ethic, a willingness to learn and a genuine interest in engineering.

Key responsibilities include:

• Assist experienced engineers with installations, planned maintenance and reactive repairs

• Support the installation of split, multi-split and VRV/VRF systems

• Learn to carry out servicing, fault-finding and basic diagnostics

• Use tools, testing equipment and systems safely and effectively

• Maintain high standards of workmanship and adhere to health & safety requirements

• Complete apprenticeship coursework, training and assessments

• Keep vans, tools and work areas organised, clean and professional

• Represent the business positively on client sites

About You

To be considered for the role of Apprentice Air Conditioning Engineer you will need to demonstrate:

• A keen interest in engineering and building services

• A positive attitude with a strong willingness to learn and develop

• Reliability, punctuality and commitment to completing your apprenticeship

• Good communication skills and the ability to work as part of a team

• Impeccable organisation and the abity to follow instructions carefully

• Basic IT and numeracy skills

• Full UK driving licence (preferred but not essential)

What You'll Gain and Develop

• Structured training programme with ongoing mentorship from experienced engineers

• Hands-on experience across high-end residential and commercial projects

• Support with industry-recognised qualifications and certifications (including F-Gas awareness)

• Practical skills in installation, maintenance and fault diagnostics

• Clear pathway to progress into a qualified Air Conditioning Engineer role

• Exposure to a supportive, friendly and growing team environment

• Long-term career development opportunities within the business

Additional Information:

This apprenticeship is ideally undertaken in conjunction with a Level 2 or Level 3 Refrigeration, Air Conditioning & Heat Pump Engineering course, delivered via day-release at a local college.

Recognised training providers include, but are not limited to: the College of North West London, South Thames College Group, City of Westminster College, Capital City College Group and Croydon College.

We welcome applications from individuals intending to start a relevant college course, as well as those already partway through their studies, and are happy to offer an immediate start even if your course begins in September.

How to Apply

So, if your skill set matches the above and the prospect of helping deliver some of the country’s finest projects appeals to you, please reach out by clicking Apply .

Your application will be processed by Size Group, and interviews will be conducted on a rolling basis as suitable candidates apply. We therefore encourage you to submit ASAP to avoid missing out!