Various questions about the installed parquet

I think I'll wait another week and then put it in writing as a complaint.

Now he has at least gotten back to me. So I have hope again.

Larger deflections carry the risk that the locking between the "clicked" plank elements either unintentionally opens due to the constantly repeated load (when walked on), or the milling breaks out at the longitudinal and/or end sides, thereby damaging the element.

The craftsman has looked at it in the meantime and said that nothing should happen, but he would repair it as a precaution. He looked under the parquet and the screed has a depression at that spot. He said dismantling and filling would be a big effort. Instead, he has now applied beads of assembly adhesive under the impact sound insulation foil, so like underpinning with planks. At first, I didn’t get it, but he really meant assembly adhesive. I’m not quite sure how I should feel about that, but he said it should work. If it’s not enough, then I should get in touch. Then he would dismantle it after all. Does anyone know this trick with assembly adhesive? Basically, it kind of makes sense. It’s basically a kind of filler material. But I just don’t know how long it will hold.

With assembly adhesive, he certainly meant "assembly foam".

I called about 4 weeks ago and asked what was going on with the invoice. He said he just hadn’t gotten around to it yet. It’s already been a year since the job was completed. Can someone tell me what the reason for this could be? Honestly, it’s driving me crazy not knowing what’s still coming. (...)

That’s not necessarily usual, but it can happen. I received the invoice for my utility connections last week; they were installed in November 2022. From a pretty large civil engineering company, so they have dedicated people for invoicing. Sometimes the craftsman doesn’t...

Besides that: Did you have it done "based on time and materials"? You must have signed an offer where he lays out the price for his work? Deduct from that what you’ve already paid, then you’ll know what he still gets?