I assume that's only if not urgent? e.g. pipe blows up or rock hits a window for whatever reason, you can at least effect basic repairs if not immediately call the tradie?

You're not supposed to do either on shabbat unless its life or death.

The only time you can break the Sabbath is if it is "pikuach nefesh" (life threatening if not done)

and being a single guy, I've hosted many a meal where I did the cooking, table setting and cleaning. (though in practice at these meals, there is also a pot luck nature to them and many times there's a whole system where your friends come over help you set the table and then help clean up and throw everything away all the trash after the meal, collecting silverware, wrapping up the plastic table cloth cover with all the crumbs/spills on it).