AC Supervisor

Acorn Engineering Limited; Slough; On-site; GBP 42,000 - 64,000; Full time

Benefits offered by this job

Family Friendly Pay

Life Assurance

Death in Service Insurance

Pension Scheme

Wellbeing App

Fertility Treatment Support Leave

Paid Maternity Leave

Paid Paternity Leave

Gym membership discounts

Refer-a-Friend Bonus

Recognition Programme

Job summary

Acorn Engineering Limited is seeking an experienced Air Conditioning Supervisor in Slough and the South East. The role leads a team of engineers, oversees complex AC faults, and ensures compliance with F-Gas regulations across a varied commercial portfolio.

You will mentor engineers, support on-site operations, and drive technical excellence while maintaining exceptional service standards. Travel to client sites is required and salary is based on experience.

Qualifications

• Proven senior AC/HVAC engineer experience.
• F‑Gas Cat 1 certification required.
• Full UK driving licence essential.
• Strong fault‑finding and diagnostic skills.

Responsibilities

• Provide technical support for complex air conditioning faults.
• Carry out maintenance, servicing, and fault diagnosis across equipment.
• Support engineers on-site and ensure safe, high‑quality work.
• Ensure compliance with F‑Gas regulations and procedures.
• Assist surveys, remedial proposals, and system improvements.
• Mentor engineers through coaching and best practice.
• Maintain high standards of quality and customer service.

Skills

Fault-finding

Technical knowledge

Communication

Organisational skills

Leadership

Education

F-Gas Category 1 Certification

Full UK Driving Licence

Air Conditioning/HVAC qualifications

Tools

CAFM systems

Digital reporting tools

Job description

South East England
At Acorn, people are at the heart of everything we do. With over 40 years’ experience delivering market‑leading engineering and compliance services across London and the South East, we have built a reputation based on trust, technical excellence, and long‑term partnerships with our clients.
We are seeking an experienced Air Conditioning Supervisor to join our growing team. This is a hands‑on leadership role for a highly skilled AC/HVAC professional who enjoys solving technical challenges, supporting engineers, and maintaining the highest standards of service delivery.
As the technical lead for air conditioning systems, you will provide expert guidance on complex faults, support operational teams, and help drive technical excellence across a varied commercial portfolio.

Package & Benefits

Location: Slough and South East England (with regular travel to client sites)
Salary: Depending on experience
Hours: 41.25 hours a week
We believe in supporting our employees both professionally and personally.
As part of our team, you'll enjoy:

• Family Friendly Pay
• Life Assurance
• Death in Service Insurance
• Scottish Widows Pension Scheme
• 360 Wellbeing App, including 24/7 access to GP appointments
• Fertility Treatment Support Leave
• Paid Maternity Leave
• Paid Paternity Leave
• Gym membership discounts and a wide range of lifestyle savings
• Employee Refer-a-Friend Bonus Scheme
• Employee Recognition Programme

Key Responsibilities

• Provide technical support and guidance for complex air conditioning faults and system issues.
• Carry out maintenance, servicing, repairs, and fault diagnosis across a range of AC equipment.
• Support engineers on-site, ensuring work is completed safely and to a high standard.
• Ensure compliance with F‑Gas regulations and company procedures.
• Assist with technical surveys, remedial proposals, and system improvement recommendations.
• Mentor and develop engineers through coaching and sharing best practice.
• Maintain exceptional standards of quality, customer service, and technical compliance.

What We're Looking For

• Proven experience as a senior Air Conditioning or HVAC Engineer.
• Strong fault‑finding and diagnostic capabilities.
• Excellent technical knowledge across a range of AC systems.
• F‑Gas Category 1 Certification.
• Relevant Air Conditioning/HVAC qualifications.
• Full UK Driving Licence.
• Strong communication and organisational skills.
• Ability to influence and support engineers across multiple sites.

Desirable

• Experience supporting quotations, surveys, and remedial projects.
• Knowledge of CAFM systems and digital reporting tools.
• Experience within commercial environments.
• IOSH Working Safely or equivalent Health & Safety qualification.
• Additional manufacturer training and certifications.

Career Prospects at Acorn

Acorn is committed to developing its people for the long term.
Many of our engineers progress into senior engineering, specialist, or management roles as they grow within the business. We actively encourage skill development, increased responsibility, and career progression for individuals who show commitment, reliability, and a strong customer‑focused approach.
As our service offering and client base continue to grow, there are ongoing opportunities for overtime, role development, and exposure to a wide variety of technically interesting sites and systems.

Why Join Acorn?

• A stable, well‑established company with over four decades of industry experience
• A supportive, knowledgeable internal team that understands engineering roles
• A strong focus on teamwork, professionalism, and safety
• Genuine long‑term career progression opportunities
• PPM‑led work across varied sites in the local and surrounding counties

We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, colour, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, and basis of disability

Need more info?
Dale will be happy to help!
[e-mail]