Just came home from 2 months of travelling and birds have nested and destroyed my balcony. What I mean is there is an unreal amount of bird matter covering the balcony.

It is very bad and needs to be professionally cleaned.

Please anyone recommend a good service to do this type of cleaning, a regular maid will NOT be able to handle this.

Sandblasting sounds pretty drastic for some birdshit.

Why not ask the airconcleaners to clean it as well? They have a high pressure washer with them.

When it's clean you go to Daiso shop and buy those things with pins to repell birds and with superglue you glue those on the ridges they like to sit on.