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I had a couple small spots of mildew between grout and caulk at the edge between the bottom tile and the top edge of the porcelain shower floor, so hired a repair person to clean this up. I had tried to do this myself but when I tried to remove the caulk, the grout came off in bits the size of small gravel. He charged $800 for 4 days to remove the grout, and regrout with silicon grout. That much just to regrout the 6 ft edge between the bottom tile and the top edge of the porcelain shower floor. He redid the whole edge so it would match, so he said. (he also regrouted part of another tub edge (2 ft)and added caulk to the edge of 2 sinks for that price.) Now the grout has cracks in it, looks wet in places and has no sealant or caulk over top.
1) Does this need to be redone due to the cracks ? He says because it is silicon grout that it is not a problem and does not require sealer or caulk.
2) Is that price excessive considering he could have removed the grout in less than an hour with a circular drill and done the rest in a day total? I appreciate all responses.

1) Does this need to be redone due to the cracks ? He says because it is silicon grout that it is not a problem and does not require sealer or caulk.
2) Is that price excessive considering he could have removed the grout in less than an hour with a circular drill and done the rest in a day total? I appreciate all responses.
