An excellent opportunity has arisen for an experienced Commercial Gas Engineer to join our client, a well-established and growing Building Services provider. This is a mobile role covering multiple commercial sites, offering long-term stability and excellent earning potential. Location: Mobile covering London and the Home Counties You will be responsible for carrying out planned and reactive maintenance across a variety of commercial premises, ensuring all gas and mechanical systems remain fully operational and compliant. Travel between sites is incorporated into the working day. Daily Responsibilities will include: Carrying out planned preventative maintenance (PPM) and reactive works on commercial boilers, heating systems, pumps, valves and associated plant Servicing commercial gas plant and plant room equipment Fault finding, isolation and rectification of gas and mechanical issues Testing, purging and commissioning in line with Gas Safe regulations Attending breakdowns, repairs and emergency callouts Supporting minor installation works, upgrades and refurbishments when required Maintaining accurate service reports and gas safety documentation Ensuring the highest health & safety standards are always adopted Providing professional updates and technical advice to clients on site Essential Requirements: Valid Commercial Gas qualifications including COCN1, CODNCO1, CIGA1, CORT1, ICPN1, TPCP1A (or equivalent) ...