Sam....Are your neighbors so loud you can hear them in your house or are you in an apartment or condo?
Tall trees or a tall wooden fence.
What are the neighbours doing that is causing what you feel is too much noise? Overly loud music, construction noises, yelling and foul language? etc?
Is their noise interfering with your indoor or outdoor activities?
Check with your municipality or town office first to see what the bylaws may be regarding excessive noise. Homeowners are entitled to reasonable enjoyment of their property without being disturbed by others.