My parents own a 24 foot Wilderness travel trailer. I think it was built in 1999. There was a leak in one of the rear corners of the trailer. The exterior siding separated in the corner. Water had gotten inside at some point. We are looking at getting it repaired. From what we can see under the bed where the water tank is underneath. Part of the lower wood structure is rotted out. Is there someone that can repair something like this in south eastern Michigan?