The home is about 15 years old with 66 inch aluminum patio doors. I have water damage under one of the patio doors. There is a deck that is attached right up to the edge of the house. The nuts on the ledger board for the deck appear to be well rusted. The decking boards are in good shape. board underneath the subfloor by the the door is in various conditions of dry and flaky and wet and rotting. In the meantime, I've placed wood hardener onto the wood. What is the recommended technique or way of repairing the beam underneath. Are any special techniques or tools needed? I'm a mom on a very tight budget.