1. 15 minutes
2. totally depends on the kind of sink, countertop, and drain configuration. Anywhere from a few hours to a whole day.
3. 2 hours, but may need a helper
4. 2 hours.
5. not really a plumbing job

I edited this to say the toilet may require a helper.

This post was edited by aidan_m on Thu, Feb 6, 14 at 14:06

About a day or less, but need more info. Did he install the sink fixtures, too? Were the faucets one-piece or separate (wide-spread)? Why are you asking? What happened? Also, did he charge flat rate per job, or by the hour? Lots of guys are doing the flat-rate thing.

New construction or remodel,6 hours. If plumbing isn't new plus old toilet must be salvaged, 8 hours and possibly a secound trip if rough plumbing and/or toilet flange is bad.
If someone else already "fixed" it ,it might easly take two days.

Right now I need to find a plumber, but because of the pandemic, it is difficult to do this!

I don't know how long other companies do it, but I found one that repaired all the equipment in my house in one day, but when I mean everything, I'm not kidding at all. When I moved into the new apartment, I came across some guys who changed my technique from one apartment to another, damaging them for me. I was disappointed and confused, but I was lucky with the new neighbors who advised me to resort to emergency plumbing dallas because they are considered the best experts. Being already unwell, I called them without thinking, and that was the best choice I made.