Prev3 of 5Next What’s Involved in a Service During a service, the engineer will inspect and clean key components, check for any leaks or corrosion, and ensure that the boiler is operating at the correct pressure. This comprehensive check-up helps keep your boiler running smoothly. Prev3 of 5Next What’s Involved in a Service Post navigation Using Thermostatic Radiator Valves (TRVs) Insulating Your Home