Contact person for central controlled residential ventilation in Berlin?

We are still undecided between a central and a decentralized controlled residential ventilation system for our planned single-family house. I have already had good consulting conversations at two independent companies regarding decentralized controlled residential ventilation systems, which revealed that for our project (1.5-story gable roof house approx. 9x10 m with converted attic) we will have to spend about 6.5-7 thousand euros if we want the quality we desire with heat recovery and not too noisy devices.

This now seems quite close to the range of a central controlled residential ventilation system with heat recovery, but: how can I find out more here? Can someone recommend good contacts, ideally in the Berlin area?

Thank you very much,

Kazazi

I can recommend my ventilation specialist to you... I have written down my experiences etc. here often enough... but it is not a Berlin company... however, they operate nationwide...

Hello,

that would be great. Can you tell me where I can find it? I know that you have a system from Wolf, but who designs, installs, etc. the Wolf system is also quite a relevant number, right?

Thanks & regards,

Kazazi