Heat pump is roaring in the house experiences

The house was built in 2019, whether the seller was aware of it I cannot say.

If he heated it, he must have noticed it. Was this communicated? No. Then one could say that he failed to communicate the defect of the house transparently. Do you know where he moved to? I mean, was the communicated reason for the sale plausible? Could the defect of the house have been the reason for the sale?

What does defect mean? Noise is also often subjective. We had the same problem with the neighbors. When the first harsh winter came and the air heat pump ran like a tractor, he threw up. But it was within tolerance. What we did, without reducing the performance, was to break the sound a little. We set up perforated sheet metal on the sides and in front. Everything improved.

One could still install vibration dampers between [Bigfoots] and the heat pump. That should provide more decoupling.

In front of a window, sorry that is very naive.. the only solution is to move the thing.. where to move it you should consider carefully but you are on site so you have the overview, for your information 20 meters are usually easily possible and that would be worth it to me.

I believe this is overall a very unfortunate constellation. a) Location (too close and in front of the window -> yuck) b) Installation situation: Heat pump on concrete base vibrates, possibly even hitting one or the natural frequency of the garage roof. In addition, the garage or the garage roof is poorly or not decoupled from the house at all.

Who plans something like this? Such things cannot be explained with common sense anymore.

P.S. I was annoyed for over a year about my house water system, which the plumber had only rudimentarily suspended decoupled on the wrong wall (against the agreement). As a result, it always droned unpleasantly in the bathroom when water was requested (toilet flush, outdoor faucet). With 3 hours of work and about €30 in material, I combined plywood, hard rubber mats, and soft rubber mats and now the system is almost inaudible (it was only structure-borne noise).

Maybe you can similarly (the heat pump is of course much heavier than a house water system) place different rubber mats under the concrete base of the heat pump to decouple it from the roof?

Hello everyone,

First of all, thank you very much for your responses. I will pass this on to the system builder and keep you updated!
Best regards
Christian