I've done one school here. And that was only because I used to be the Network Manager for the District and I had high level contacts in the District Administration office. This was an unusual situation as they had just added on 15000 square feet of classrooms and needed everything done quickly in preparation for an inspection by the Superintendent.
Aside from that one job, I have not any luck at all with schools around here. But, I added it to my portfolio and time will tell if there will be any more opportunities. Schools around here have very tight budgets that get tighter every year, and I'm sure that is the case pretty much everywhere. So hiring contractors to do things they can have their maintenance people do is not a big priority. Keep at it though, you never know.