A curious thought came into my mind, thinking of the time at which I'll stumble upon a really good available apartment and may want to suddenly move, without much time to plan and organize in advance (meaning finding a new tenant for my current apartment and having an overlap of probably about a month in the contracts):

Are there companies that handle everything concerned with moving - fixing stuff in the old apartment, cleaning it, disassembling, packing, and transporting furniture and stuff? I looked at threads about moving companies but they all just talk about packing and transporting. Having it all combined under the responsibility (especially the care for returning the old apartment in a way that satisfies the landlord) of one company may be easier when you're under stress.

Any experiences with the service and price of such companies?