Rattling noise coming from wall

Hi, It sounds like wind is getting into the cavity and making the pipes rattles as it passes through. This may be an indication that the pipes have not been secured or have come loose. A suggestion may be to identify exactly where the noise is isolated to (Is it just the one wall/one area) and then remove the wall lining or make a small enough inspection hole to investigate further. It could just require some additional clips to hold the pipe in place more securely! and/or depending on the pipe wrap in pipe foam insulation and insulate them separately which will help them to stop hitting each other. The wind getting in could also be a problem unless it is travelling through a natural vented area of the property (such as an air brick etc) so you may as well check that whilst you are there. Hope that helps. Best regards Rob

could i just ask when you had the bathroom fitted? and if the noise is coming from the bathtub drain when you turn the water on and off by the sink. if so it might be that the fitter used the same outlet to drain the water. also if the waters draining to quick the suction travelling past the bathtub trap will pull the water down causing a bubbling noise, if this is the problem then you might need a deeper trap. if you can here a rattle sound then trouble shoot it by turning the taps on and off to see if this sound appears, then this will indicate that the pipes are lose causing it to rattle. this could mean you might need fixings for the pipe work to stop them movement.id also check the pressure of the boiler because if the pressure is two high then the pressure that the water builds up can also cause a vibration. if this is the case then you might have to relieve some of the pressure build up. id suggest that the work will need to be done as it may cause a pipe to become damaged and may be leak which will cost you more in the long run. An inspection would be the key here to find the solution. if you have any more questions ill be more than happy to answer any. best regards liam

It could also be a caused by air trapped in the system or mild water hammer causing the pipes to vibrate together, or as previously suggested the pipes could of simply come loose from their securing clips or pipe Lagging where the pipes cross. In all cases only a close inspection is likely to determine the cause.

it also could be an air admittance valve either on the trap or pipework, you can hear it when it operates.