What products are used for post-construction cleaning / cleaning windows and tiles?

Hello everyone!

We are 3 days away from the acceptance inspection and chaos is spreading in my head. The house is almost finished, next week the air conditioning, the vinyl floors, the doors, and the final sealing work will be done. A few tile edges in the hallway as well. That's pretty much it. Now I'm trying to mentally get organized. There are already a few defects - nothing dramatic, I have written down everything that I noticed so far. Now I wonder if I am allowed to start cleaning already - I think my site manager probably doesn't mind - he also didn't mind that our own work (painting, washbasins) started before handover, so why should he have a problem with a bit of cleaning.

I read somewhere on the internet that you shouldn't use a cloth for the first window cleaning to avoid scratching. But I can't find it anymore. Can someone tell me more about this?

What should I take with me/what should I maybe buy extra? Do I need a cement residue remover or can I just clean the tiles with all-purpose cleaner? I definitely want to take the Kärcher tomorrow and remove the biggest dirt from the floors now that most of the craftsmen are done. Unfortunately, they always come back now and then because of small stuff. A toilet paper holder couldn't be screwed on because the apprentice threw away a part of the holder, so they have to come back for that again. Could be none of my business, but they all still come in with their huge, dirty boots and bring loads of sand and dirt into the house. The windows are mostly just dirty. In places, they have a bit of plaster or paint on them. The paint from the painter is water-based and comes off perfectly with warm water. I haven't dared to tackle the dry plaster yet. I read you can remove it with a ceramic hob scraper. Can't that damage the windows?

I also thought about buying another roll of painter's underlay (that black stuff that looks like a patchwork carpet) and taping it over the walkways of the vinyl with painter’s tape until the move is done. Is that paranoid and the floor should be able to handle that, or should you do it?

Sorry if this post reads a bit confused. I'm somehow quite nervous about the acceptance inspection. Also because some things are already "finished", but as long as craftsmen come in and out, something can still get damaged. I have already found one or the other spot on the freshly painted wallpaper. :/ My painter said he will come again and straighten everything out once the last craftsman has set foot out of the house.

We had the windows cleaned at the expense of the construction company - scratches covered by warranty until acceptance. They cleaned everything with water, dish soap, and a stove top scraper.

I cleaned the floors and everything else with regular cleaning products.

at our place, the construction company taped off walkways to protect the floors

And for the move-in we had laid some. Outdoor area not finished, coarse footwear should not be worn on the floor.

We will probably hire a company for the final construction cleaning. Our architect says that doing it yourself may still reveal construction dirt even after years.

I only had the windows cleaned. Two professional cleaners worked six hours each. I wouldn’t have managed that myself in terms of time.

All walkways were taped off because during the move many people trample up the wooden stairs and parquet floor with heavy objects and little stones stuck under their shoes. You should do that too.

Do I need a cement haze remover or can I just clean the tiles with an all-purpose cleaner?

It depends. I would try normal cleaning first. If they don't get properly clean, then use stronger agents. Still be careful and watch out for the grout. Whatever you do, you have to wipe several times.

I've already found one or two spots on the freshly painted wallpaper. :/ My painter said he will come again and straighten everything one last time after the last craftsman has left the house.

My walls don't look great after four weeks either, but I also have three (small) children. You get used to the sight. The floors also suffer quite quickly. In the rental apartment, one was always very careless. There was the 10€ laminate and the all-forgiving textured wallpaper on the wall. Those days are over.

We were lucky: The house was clean upon takeover. Normal cleaners should do the job.