Posted By peter gotch Hi Jenny, Done this myself in flat upgrade. If we could have removed intact our local private Victorian baths club would have paid us handsomely, but would have meant knocking down a wall. Have you thought of reducing peak and overall noise levels by applying sheets of magnetic damping material. Used to be called Din Damp and good in e.g. fabrication factories. Regards, Peter

Posted By Renny Thomson Jenny, other assessments would be meaningless as so many factors will affect the peak and other levels. As the other posters have indicated, methods of reducing noise will affect the noise levels, as will the dimensions of the room, any openings (e.g. windows), size of hammer, technique, duration of process etc. Simple good practice of damping the sound by use of mats or packing would be viewed as good practice so should be followed regardless of the levels acheived.