L & L,
A lot of helicopters leaving Battersea track due south (unoffical route) until clear of the Heathrow zone and then turn for either Blackbushe, Fairoaks, Farnborough etc. And then do the reverse to go to Battersea. Me included but only one or twice a month. It will usually be the larger types which even at 1000 or 2000ft are bloody noisy.
I use a waypoint 10nms due south of Battersea as a turning point and then route to Ockham. Heathrow usually spit us out at 1000ft AMSL (above mean sea level) and then generally we climb to 2400ft AMSL to remain below the London Control Area.
Without a village name or general location we can't do anything to avoid you.
If you supply a location and it is on my route I will happily change the waypoint to avoid you, I am sure other responsible operators will do the same.
Sadly, alot of these threads turn into slanging matches. It would have probably been better to start the post asking us to avoid an area rather than complaining about helicopter noise as this usually wakes the trolls from their slumber.
FNW