Book a boiler service when the appliance is working and its routine inspection is due. Book a repair when heating or hot water has failed, pressure repeatedly drops, a fault code returns or an unusual noise needs diagnosis. A service checks condition and operation; it is not a promise that a known breakdown will be fixed within the same scope. Mention an existing fault when booking so the visit is planned around the problem rather than only the service record.
For a gas boiler, routine servicing includes checks of gas pressure, flue performance, safety controls, condensate arrangements and system pressure, with a written service record. Repair work starts by identifying the failed component or system condition and explaining the remedial work. A cold radiator, a controls problem and an appliance fault can feel similar to the householder, so the heating system matters as well as the boiler itself.
We cover the Scottish Borders and East Lothian and work on major boiler makes. Our boiler repair page is the place to start for a breakdown; the oil boiler repair page explains oil-specific faults, while the Vaillant service and repair page brings those two visit types together for that make. If you are unsure, describe the symptoms and whether the boiler still operates. The service-versus-repair guide helps you choose the appropriate appointment without confusing preventative care with fault-finding.