You are responsible for him, remember?
I am always skeptical about the recommendations of friends about a certain person who offers you services, like barber, plumber, electrician. Being friends or acquaintances obviously it means that you will say only good things about him, right? Considering that I prefer looking for a specialist on forums and hear real situations from real people. I will also share this company: fastplumbers.net.au which really offers you qualified and professional workers. Try it yourself and you will see that I am right