Gas work needs a Gas Safe registered engineer
Only engineers on the Gas Safe Register may work on gas boilers, cookers, fires and pipework. Ask to see their Gas Safe ID card: the front shows their photo, licence number and dates, and the back lists the types of gas work they're qualified for. You can check a card on the Gas Safe Register website or by calling 0800 408 5500.
Sources: Lancaster City Council: gas safety, updated 16 Aug 2024; Gas Safe Register