Does the tuner also restore the aesthetic and structural parts of a piano?

Generally, the furniture is restored by a polisher. Now it must be seen; it's possible that a technician may also have learned, for example, to polish using a pad, with shellac. Spirit and shellac polishing is a long, laborious job that requires experience, especially on black finishes. For instruments with visible wood grain (mahogany, walnut, burl, etc.), an antique furniture restorer is sufficient. Polishing with polyester is unthinkable. It involves knowing how to level and polish the sprayed mass or the use of an oven. Therefore, it can, however, be performed on parts detached from the instrument and not on fixed parts (the oven would damage the soundboard.....)

Let's say that when you find a repair technician who knows how to do everything, you save money because as the number of steps increases, so does the cost... nowadays there are workshops in the south that come with a truck to pick up the piano even in Milan and then return it with the requested interventions performed, to be paid according to a pre-established price list. I won't report the specific figures, but they are modest compared to average prices in northern Italy: in fact, many shops use these workshops for heavy work (case, soundboard, hitch pins, etc.) and finish the action at their own premises, implying to the customer that all the work was carried out on-site.

Obviously, all these steps are included in the estimates.

In any case, a technician who has an overall vision of the piano or who has seen how a piano is born starting from the first soundboard has, in my opinion, an extra edge. Then there are tuners who, by their own admission, are incapable of any manual task and live only on tuning and small maintenance (a broken string, a quick check of the action, etc.) and wouldn't know how to repair even a single roller.

In a factory, however, those who deal with placing dampers only do that, those who install strings only do that, those who perform keyboard regulation only do that, because it is only through repeating an operation many times that one becomes a specialist.

The general technician, on the other hand, will have to know all the steps reasonably well, but will never be as fast or skilled as someone who repeats the same operation ten times a day all year round.