When 'Cold House' Becomes an Immediate Concern
If your heating is on but your house remains cold, and you also notice specific additional symptoms, it might indicate a more serious problem. A strong smell of gas, even if faint, alongside poor heating, is an immediate emergency. Similarly, if your boiler is making unusual noises like banging or rumbling that you haven't heard before, or if there's any visible sign of water leakage from the appliance, these warrant an urgent call. These symptoms suggest a potential fault within the boiler itself that could compromise safety or cause significant damage.
- Strong smell of gas anywhere in the property.
- Boiler making loud, unusual noises (banging, rumbling).
- Visible water leak from the boiler unit itself.
- Carbon monoxide alarm activation (even if heating works).
- Flames from boiler are discoloured (e.g., orange/yellow).

