I've got quarry tiles in my hall and need to clean them up a bit. Obviously you can scrape them etc, but I beleive the professionals use a chemical a bit like brick acid to etch off the top layer and leave them sparkly new. Anyone know what that is?

Stone Floor Cleaner (Toolstation) or Patio/Path Cleaner (Screwfix) but read the instructions first! Cheers, Pewe

Sweet, cheers mate.

Dress them with linseed oil when done, brings them up a treat.