Reproduce the pattern without repeatedly stressing the system
Note whether the sound follows closing a tap, toilet refill or an appliance cycle. Describe its location and whether it is a single bang, repeated knock or sustained vibration. The timing is often more useful than a guess about which pipe needs replacing.
Noise can travel through building elements, and not every pipe sound is water hammer. Expansion, movement and particular fittings can produce different patterns. A short recording from a safe position may help, but the provider should assess the actual system before prescribing a component.
Plumbing







Blocked drains
Hot water repairs

Water leak detection
Toilet repairs


Gas leak investigation
General plumbing
