Also contacted the Habitat for Humanity but waiting for an answer.
Anyone ever done Big Brother Big Sister?
I've built several houses with Habitat. I have a friend that was a Big Brother. My advice would be to go with Habitat. Being a Big Brother is a HUGE commitment and if you change your mind later or find yourself too busy then you will really crush a young boy's hopes. Habitat is as big a commitment as you want to make it. Personally I go every Saturday from the start to finish of the house. But others go every other Saturday while others just go once a month. It's whatever works best for you and your schedule. The Habitat houses don't typically run back-to-back so even if you go every Saturday you usually get a couple months' break now and then which is a nice breather. And don't worry if you know nothing about construction, it's an environment that offers on-the-job training to those who have never lifted a hammer.