Nice guy, asked him to help me locate a leak. While we didn't find the exact point, he did help me narrow it down. It will probably have to come down to cutting some holes in the wall to really locate.
Other than that, I did ask him about a few smaller projects that I could use some help with: moving some ceiling lights, installing a fan, etc. He made the time to talk through it all and gave me an estimate later on. I'll be hiring him for those smaller projects as well.