I can't speak to northern Durham schools. Can speak a little to Person county schools since we lived there before moving to Wake. If you live in Timberlake the elem school is Helena. I think it's ok. There's another in Hurdle Mills - Oak Lane - which I liked better and my youngest went there. He was very happy, the atmosphere was friendly, and the teachers were great. He did well, made progress.
My oldest boy went to Southern Middle which I think was rated better than Northern Middle. We lived south of Roxboro. Then he went to Person High school and I have no complaints about that school.... they sent kids to UNC and other colleges just like the Wake schools do. I think there were higher levels of support and goodwill towards the Person county school system than towards the Wake school system .... seems like all I hear about with Wake schools are complaints. My oldest boy transferred to Green Hope when we moved to Wake which isn't a totally horrid school by any means, but frankly, we preferred the teaching at PHS and he did better and was happier there too.
I actually miss Person county.
We have been in Wake a few years now and we are finally moving out. We're going to Alamance which will be near to my husband's new job and not so far from Person and Caswell. Can't wait! It should be easier for me to drive up to visit friends.
Oh one more thing. There is a charter school, Roxboro Community, which is very popular. I heard there were northern Durham families that applied for places there because they preferred to take their kids to Person for their education than go to a school in their county. That may be another option for you for next school year - the lottery is over for this year.