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Chiller Service Engineer

Johnson Controls • Energy Efficiency • HVAC & Refrigeration • Travel required • Bachelor's Degree • 2 days ago
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Salary
≈ $36k – $75k per year (Estimated)
Location
Hybrid (Sunbury-on-Thames, Slough, Reading, Watford, United Kingdom)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Oct 16, 2026. Johnson Controls scores A on the Alion truth index.

Overview
Company
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Profile match

Johnson Controls

Johnson Controls is a building technology company that makes and services heating, ventilation and air conditioning equipment, building automation and controls, fire detection and suppression systems, and security and access control products. It sells under brands such as York, Metasys and Tyco to commercial buildings, hospitals, data centers, schools and government facilities in more than 150 countries, and runs its North American operations from Milwaukee, Wisconsin. The company is headquartered in Cork, Ireland.
johnsoncontrols.com • HQ: Cork, Ireland • Access Control & Alarm Systems • HVAC & Refrigeration • Building Automation & Controls • Energy Efficiency • 5000+ employees • Est. 1885
Tech stack of Johnson Controls

Johnson Controls is the global leader in smart, healthy and sustainable buildings. We are looking for an experienced Chiller Service Engineer to join our team at Heathrow Airport.

This is an excellent opportunity for an engineer with strong experience servicing, maintaining and fault-finding on commercial and industrial chillers from manufacturers such as York, Trane and Carrier.

What We Offer

  • Competitive salary plus premium overtime rates
  • Standby allowance (1 in 10) and call-out payments
  • Company vehicle, mobile phone, tablet, PPE and specialist tools
  • 25 days annual leave plus Bank Holidays
  • Holiday Purchase Scheme
  • Pension, life assurance and Employee Assistance Programme
  • Employee discounts and Cycle to Work scheme
  • Ongoing training and development
  • Structured career progression
  • Zero Harm safety culture

What You Will Do

You will be responsible for servicing, maintaining and repairing a range of chiller systems across Heathrow Airport. The role is primarily site-based, with occasional travel to other customer locations when required.

Key responsibilities include:

  • Planned preventative maintenance (PPM)
  • Reactive repairs and fault diagnosis
  • Electrical, refrigeration and controls troubleshooting
  • Identification of equipment improvements and upgrades
  • Completion of service documentation
  • Compliance with all health and safety procedures

You may also support associated HVAC equipment, including AHUs, ventilation and cooling systems.

What We Are Looking For

Essential

  • NVQ Level 2 in Refrigeration & Air Conditioning (Level 3 desirable)
  • F-Gas Category 1 Certification
  • Experience servicing and maintaining air-cooled and water-cooled chillers
  • Strong fault-finding skills across refrigeration, electrical and controls systems
  • Experience with manufacturers such as York, Trane, Carrier
  • Ability to read technical drawings and electrical schematics
  • Full UK driving licence

Desirable

  • BMS or controls experience
  • Experience working in airports, data centres, hospitals or other critical environments
  • Manufacturer training or certifications

Join a market-leading organisation where your expertise is valued, your development is supported, and your career can thrive.

Apply today to become part of the Johnson Controls team.

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