We are seeking a Mobile Gas Engineer to provide commercial gas, heating, combustion and building services engineering maintenance across a variety of client properties within the designated region.

The successful candidate will be responsible for servicing, fault finding, repairs, maintenance and installation activities across commercial, domestic gas and HVAC systems.

Job Description

We are looking for an experienced engineer with a strong background in commercial gas, combustion and heating-related building services maintenance.

This role requires expertise in both planned and reactive maintenance, a commitment to high standards of compliance, and the ability to support clients through effective maintenance and repair solutions.

Key Responsibilities

- Deliver Planned Preventative Maintenance (PPM) on commercial combustion, heating and HVAC systems.
- Carry out reactive maintenance and fault-finding activities across gas, heating and HVAC equipment.
- Undertake proactive maintenance tasks to ensure the reliability and performance of client systems.
- Perform new installations of gas and heating systems in line with relevant standards.
- Complete major and minor repairs to client gas and heating systems.
- Provide maintenance support across general building services, including fabric, HVAC, plumbing and mechanical systems.
- Participate in the client's out-of-hours callout rota and respond to emergency situations as required.
- Ensure all maintenance, servicing and installation work is completed safely and in compliance with industry regulations.

Professional and Personal Competencies/Qualifications

Skills & Experience

- Experience in commercial gas, combustion and heating-related building services maintenance.
- Solid fault-finding, routine maintenance and installation experience.
- Background in both reactive maintenance and Planned Preventative Maintenance (PPM).




- Proven track record working within Facilities Management (FM) or building services environments within commercial properties.

Commercial Gas Qualifications (must include)

- Commercial Core Safety: COCN1 or CODNC1
- TPCP1A, ICPN1, CORT1, CIGA1

Domestic Core Gas Qualifications (must include)

- CCN1, CENWAT1, CPA1

Technical Certifications

City & Guilds or NVQ Level 2/3 in Plumbing, HVAC, or related Mechanical Engineering discipline

Registrations & Licences

- Gas Safe Registered
- IPAF and/or PASMA
- Full UK Driving Licence (ISS van provided)

The Company

- ISS is a world-leading workplace and facility management company, connecting people and places to make the world work better. Working with customers day by day, side by side, we understand every aspect of the user experience.
- Through a unique combination of intelligent solutions, high standards and people who care, to help our customers achieve their purpose, whether it’s hospitals healing patients, businesses producing the next great innovation, or airports bringing passengers home to their families. ISS is committed to doing business the right way, taking its corporate responsibility very seriously. Our passion is people.
- We offer you a challenging and exciting career in an organisation with people at its heart. In ISS, everyone has the opportunity to develop, grow and make a difference. #Becomewhoyouwant, #Bepartofsomethingbigger,
- #aplacetobeyou,
- #facilitiesmanagement




- ISS is proud to be a diverse and inclusive employer.
- ISS welcomes all applicants regardless of age, disability, gender identity or gender reassignment, marital or civil partnership status, pregnancy or maternity, race (which includes race, colour, nationality, ethnic or national origin and caste), religion or belief, sex, sexual orientation or educational background.
- We are proud to be a Gold Employer Recognition Scheme (ERS) award holder and a signatory of the Armed Forces Covenant, recognising our commitment to supporting veterans, reservists, and military families. Through our Joint Forces Programme, we provide mentoring and support to members of the Armed Forces community and their spouses as they transition into civilian careers.
- We are a Disability Confident Committed (Level 2) employer, proudly supporting and promoting inclusive hiring practices in line with the UK government’s Disability Confident scheme.
- Our passion for inclusivity and diversity makes ISS a more creative, productive and happy place to work.
- If you have any further queries regarding this role, please contact the Resourcing Team by emailing [email protected]

Proud member of the Disability Confident employer scheme

Mobile Gas Engineer

- Company: ISS Facilities Services
- Salary: £43,500 - £51,200
- Hours: Full-time
- Location: Perth, PH1 5TH
- Working pattern: On-site
- Job type: Permanent
- Posting date: 18 Aug 2026
- Closing date: 17 Sept 2026
- Hours of work: 40

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📌 Mobile Gas Engineer (Western Australia)
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📍 Western Australia