If you are a civilized one, then, certainly, no! But don't give a negative answer, since it does not make you as such...
In the existing situation of almost complete shadow home construction and renovation, when companies have to conduct works without legal Contracts with customers, it will be deficient to talk about satisfactory quality, even performing a highly qualified job (in case you are lucky). There are no guarantees for both parties; neither for payments and work quality nor for deadlines and so on! All the problems are being solved on the basis of personal mutual trust, or in best case- based on previous customers' recommendation. Talking about satisfactory quality in this market circumstances is uncivilized at least, until such situation is continuing.