Wider view
Photo of the pressure gauge if safe.
Use this guide to understand the symptom first, avoid making the problem messier, and prepare useful details only at the end if you still need help.
The aim is not to diagnose the plumbing fault from the sofa. It is to describe the visible pattern clearly and safely.
✓Visible radiator or pipe leaks are important clues.
✓Frequent pressure drops are different from one accidental low-pressure reading.
✓Heating symptoms and plumbing leak symptoms should both be mentioned.
Good photos show the fixture and access, not just a dark close-up of water.
Photo of the pressure gauge if safe.
Photo of any visible leak near radiator valves or pipework.
Wider photo of the boiler or heating area without opening covers.
Now send your Wolverhampton area, room, fixture, symptom, urgency and safe photos. Keep the message short but specific.