Legal advice needed! Neighbor bailed on us after agreeing to pay for half the damages on our fence

During Hurricane Beryl our fence was damaged. Prior to our fence getting fixed, our neighbor agreed to just going half on the fence. We didn’t go through insurance as it would have been cheaper to just pay out of pocket.

Well during and after the whole process, we’ve called our neighbor. Ignored. Knock on their door. No answer. Asked his son to relay the message. Nothing.

I’m not entirely sure what to do. Are we supposed to take the hit and our neighbor gets a free fixed fence? Can I take any legal action towards my neighbor? Clearly he can’t avoid us forever. We literally know where he lives…

It’s such shady behavior and kind of frustrating that he would just do that. Please help 🥲