Do they also come when you just want to change a lamp?
A colleague of my son tried unsuccessfully for about 6 months to find an electrician here to connect a new electric stove. So much for the idea that only professionals are allowed to do that.
Yes, with us. We had that just this summer after our move. Well, there were a few more lamps. But I think as long as you don't ask them from 50 km away and pay their travel costs, they do it, even for fewer lamps. Maybe you have a few other small things they can help with. They are definitely much easier to get "quickly" than electricians.
By the way, my husband is always amazed at how lamp installations and such things are handled in Germany. He has never done it and would never touch it because he grew up in Australia, and there it is simply not legal. You are not allowed to touch the electrical system there. Lamps & co are usually part of the equipment of houses and apartments there, like kitchens, and are sold/rented together with the property. Taking kitchens and lamps with you was extremely strange to him at first.
Many of the machines that are a standard part of the home workshop in Germany are professional tools there that no one has at home.