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Operations & Project Management

Chiller Service Technician

Johnson ControlsHounslow, Middlesex🇬🇧United KingdomPosted 14 Jul 2026

Why This Role Stands Out

As a Chiller Service Technician with a global leader in sustainable buildings, you'll gain valuable experience maintaining critical systems at Heathrow Airport, with opportunities for career advancement and continuous training. If you're a skilled HVAC professional seeking a stable, on-site role with competitive compensation and excellent benefits, this is an exciting opportunity to apply your expertise.

Quick Overview

Work Type
On Site
Level
Mid Senior

Job Description

Johnson Controls are the global leader in smart, healthy, and sustainable buildings, our mission is to reimagine the performance of buildings to serve people, places and the planet!

We are looking for an experienced Chiller/ HVAC Service Technician to work on site at Heathrow Airport.

What we offer

  • Competitive salary, and overtime paid at premium pay rates.

  • Stand by allowance, call outs, paid on top of basic salary.

  • Service vehicle, Mobile phone, tablet, PPE and any specialist equipment provided.

  • 25 days paid holidays plus Bank Holidays

  • Holiday Purchase Scheme

  • Comprehensive benefits package including pension, life assurance, employee assistance program, employee referral scheme, employee discounts including high street brands, cycle 2 work scheme and discount on Johnson Controls security products.

  • Training opportunities with outstanding resources available.

  • Career development through various career ladders programs.

  • Dedication to safety through our Zero Harm policy.

  • Access to business resource groups.

What you will do

As an HVAC Service Technician, your day-to-day role will include service, maintenance and repair work on various chillers and other HVAC equipment installed at our clients’ facilities. This is a primarily static role based at Heathrow Airport but may require occasional travel to different client locations across the UK. You will be responsible for troubleshooting and resolving technical service issues within a set timeframe and according to a defined process, service agreement and customer needs. You will carry out system PPM as per contract requirements, communicating clearly findings and any further actions required or recommendations for system improvement, upgrades or optimisations. Health and Safety will be at the forefront of everything you do.

What we look for

  • Recognised HVAC qualification: NVQ level 2 or equivalent (NVQ level 3 not essential but desirable)

  • Proven experience in the service engineer role within the air conditioning industry.

  • F-GAS 2079 Cat 1 qualification.

  • Experience & working knowledge with Chillers, DX, Split & VRV systems, AHUs & ventilation plant.

  • Experience working with major manufacturers such as York, Trane, Carrier, Daikin, Hitachi, and Mitsubishi Electric.

  • Electrical and controls experience to be able to identify and rectify electrical and control issues.

  • Understanding of relevant technical documents such as electrical schemes, fluid schemes, piping diagrams, psychometric diagrams.

  • Capable of working without documented procedures and with limited supervision.

  • A committed can-do positive attitude with the ability to integrate and work as a member of a team.

  • A full UK driving license.

Join our winning team and thrive in an empowering company culture where your voice and ideas will be heard, and your work valued and respected. All with excellent rewards and a great team ethos, your next great opportunity is just a few clicks away!

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