Commercial Gas Engineer London sites in care, education, hospitality, retail and the public sector depend on safe, reliable gas, heating and hot water. You will be the engineer clients see when plant fails, planned work is due, or a plant room needs a clear call: repair, upgrade or replace. This role exists to keep people warm, kitchens running and buildings compliant and to do it with integrity, expertise and speed. Performance Objectives Restore commercial gas appliances, boilers and plant-room equipment to safe, reliable operation on first visit wherever parts and access allow. Complete planned inspections and servicing so contracted assets stay compliant, documented and free of avoidable breakdowns. Attend emergency call-outs on a 1-in-6 rota, diagnose faults and keep clients informed until the job is closed. Install or support installation of gas appliances and heating plant to specification, Gas Safe requirements and agreed programme. Advise site teams when repair is no longer the right call, and supply accurate parts, labour and lead-time data for quotations. Hit health and safety, workmanship and profit-after-controllable-expenses targets, and follow core workflows without rework. Act as the regional subject-matter expert in one key gas competency, raising standards across the team. Environment and Resources You will work in a regional team of up to 20 directly employed commercial engineers, backed by a central technical support desk, parts and supplier contacts, ..... full job details .....