If the noise is coming from your neighbour, you may want to approach them and explain politely that you are being disturbed. Many people are unaware that their activities are causing disturbance and respond positively to a polite request.
If your direct approach to your neighbour has failed, you may wish to write to them explaining the problem. Keep copies of any correspondence that you send and make notes of any conversations.
Start keeping a noise diary. Record dates and times of the noise, how it affects you and start and end times.
If your neighbours are tenants, you may wish to contact the landlord or letting agency, housing association or our housing team. There may be conditions of tenancy that are being breached.