Homeschooling is something that I'm seriously looking at for my kids if/when we move to Indo, but I'm a teacher and would feel quite comfortable doing it. For someone without the same background, it would be different obviously. Also, in my home country (USA) there are millions of children that are home schooled each academic year, so in my mind it is a genuine and mainstream path with lots of support and a huge amount of resources.
I do not home school my children now, and I am not in Indo currently, but I would advise others to stay away from a 'service' that promises to visit your home. That sounds strange to me. I would strongly suggest hooking up with a network of other homeschooling families in order to share resources and with whom you can arrange educational trips and other activities.