Need help with flooding stall

My first question would be do you pay this man for the use of this stall? If so then I would think that it would be his delight to fix this issue if he wished to still get payed for the use of it. If he still is to busy I would suggest to him that I will fix it and send him the bill for the repairs. If at that time he is still not happy with that arrangement
I'm afraid I would find another barn.