The problem is that this water seeped under the wall and has damaged the floor sub flooring in the adjacent living room causing the hardwood flooring to buckle. Worse yet, it has caused the floor under an entertainment unit to sag to the point where the enterainment unit is no longer level.
I've examined the flooring and see that the plywood should be replaced. The joists show no evidence of rot and seem strong when tapped with a hammer.
Problem is that I don't know where to start. Should I remove the wall and rebuild the floors into the baths, or should I simply box the areas and drop the plywood on top, leaving the wall intact? There is no damage to the framing or the wallboard on the living room side. Alternately, should I call in a pro?