Soundproofing Berlin, Germany, please help.

[LOGAN]

Hello,

I am living in Berlin, Germany and I recently rented a room in a complex/office building to use to make music. The floor I am on is for musicians and although the walls are a little thicker the rooms are not sound proof.

Because I make dance music professionally there will be a sub woofer in my room. I also work everyday for long hours.

I was told I can modify the room to make it more soundproof and if I will be bothering my neighbors it is required. Needless to say I want to soundproof the room.

Does anyone here know a company in Berlin that does soundproofing?

I would really appreciate any contacts because I would like to treat the room before my equipment arrives from New York City in January.

I do realize no soundproofing is 100% and it is expensive.

I am also considering taking my sub off the floor and maybe trying to use new monitor speakers... maybe something with a 8 inch woofer and larger amp (Event SP8, Dynaudio BM15A).

Thank you for any information you can give me!