Before they will attend they ask the following, which expects you to be heating engineer! I received no call to talk through the below, only to ensure you agree to the T&C, you are expected as the the home owner to make these checks yourself! Before we continue… We need to make sure that you agree to the terms of our callout policy There are certain tasks that are detailed in your user guide as your responsibility. In accordance with our terms and conditions, If an engineer attends and carries out a user task such as, re-pressurising your boiler, replacing batteries in controls, bleeding your radiators, or any other task detailed in your user guide, you may be charged up to £90 to cover our costs. We strongly recommend that you check the fault is not caused by a user task, read your user guide and the terms and conditions of your policy to avoid any unexpected costs. I've moved from being a customer at British Gas and already wising I hadn't!