Mobile Gas Engineer Company: ISS Contract Type: Permanent We are seeking an experienced Mobile Gas Engineer to deliver commercial gas, heating, combustion, and HVAC maintenance across a range of client sites within the designated region. You will play a key role in ensuring safe, reliable, and compliant operation of critical building services systems while providing exceptional levels of service. We are looking for a professional with strong technical capability across commercial combustion, heating, and general building services, with proven experience in both planned and reactive environments. The role offers long-term stability on secure government contracts, structured working hours, and a predictable workload. Deliver commercial combustion, heating, and HVAC PPM, proactive work, and reactive maintenance within agreed timeframes. Carry out general building services maintenance, including HVAC, plumbing, mechanical systems, and fabric tasks. Provide out-of-hours callout support in line with the client rota, ensuring timely issue resolution. Undertake major and minor repair works to commercial and domestic gas and heating systems. Complete new installations of heating and gas systems to relevant standards. Diagnose and repair faults on plant and systems, including basic electrical fault-finding. Maintain clean, organised, and compliant plant rooms, workshops, and storage areas. Significant experience in commercial gas, combustion, heating, and building services maintenance. Strong background in PPM, reactive maintenance, fault finding, servicing, and installation work. Proven experience in Facilities Management or building services within commercial property settings. Commercial Gas: Domestic Gas: City & Guilds or NVQ Level 2/3 in Plumbing, HVAC, or Mechanical Engineering Gas Safe Registered IPAF / PASMA Full UK Driving Licence Monday Friday working pattern (8am 5pm) with clear overtime structure. Stable, long-term contracts on government sites. 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, ISS helps customers achieve their purpose whether it s hospitals healing patients, businesses producing the next great innovation, or airports bringing passengers home to their families. In ISS, everyone has the opportunity to develop, grow and make a difference. #ISS welcomes all applicants regardless of age, disability, gender identity or gender reassignment, marital or civil partnership status, pregnancy or maternity, race (including race, colour, nationality, ethnic or national origin and caste), religion or belief, sex, sexual orientation or educational background. 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.