What is noise nuisance?
What is considered unreasonable?
This is a difficult question because what one person may consider to be unreasonable, another may think it is normal or acceptable. In deciding whether you have a justified complaint, you need to ask yourself "What would be the likely reaction of the average, reasonable person to this noise?". You may like to gauge what other neighbours think of the noise - talk to them and see if they are prepared to support you.