If you're getting tradies in to do various jobs, get definite quotes from several of them for each job, and consider the type of person they are as the price, ie, did they listen to what you want, including your areas of concern? Did they explain things to your satisfaction? (Like, 'how would you deal with this tricky little bit here?') You might not be happy with the standard of work they do if they say, 'oh, don't worry about that, you'll never notice it' or, 'we'll think of something when the time comes.' I also spoke about future plans, to get a feel for them - like, 'we want to gyprock these two walls, and then sometime later we might do this one once the new kitchen goes in... do you think it'll look funny with only 3 walls done in the meantime?' I chose the guy who said, 'Nah I've seen heaps of places with one part of the face brick left exposed - it's a feature', and not the guy who said, 'If it were my place, i wouldn't cover up the facebrick at all.' If the second guy thinks it's going to look worse once he's finished, he's less likely to take pride in doing a good job!

And ask if it will be them personally who will do the job, or if they have subbies who will do the job for them - the standard may be different with subbies.

Remember that you're going to have this relative stranger in your home for a day or several days, and you want to feel safe around them. And if you find someone you like, who does a good job and charged a price you're happy with, don't be afraid to ask for recommendations for other trades - my gyprock guy put me in touch with the cabinet maker who did the dishwasher cabinet, who uses a plumber whom we later got back for the kitchen sink, etc...