Q&A for How to Change a Roof Tile

You will probably need to replace the wooden panels underneath the roof tiles to fix the leak and repair the sagging.

I would take some pictures if you can, measure your roof, and go to your local home improvement store and ask them for an estimated total.

Yes, but make sure someone strong is at the bottom holding it; if not, use a special ladder.

If you can break one tile and replace it, do that. The tiles are designed to not come away easily.