Home renovation

Hello,

I have acquired an old house which I want to renovate from the ground up. Since I want to save some costs, I am looking for a newer ventilation system / ventilation unit for the bathroom. Where can I get something like this on the internet and should I do it myself or rather have a company do it once I have obtained the building components.

Best regards

Hello,

...I have purchased an old house, which I want to renovate completely from scratch. However, since I want to save some costs, I am looking for the bathroom ...

That should by far the least problem ;) best regards