We are getting different advice from fitters and don't know who to believe. We want to put Amtico down in our hall. The door end of the hall is concrete, which has been down for about 25 years (we think). The rest of the hall is parquet which was laid when the house was built in the 1930s. It is all covered by carpet at present. One fitter advises taking up the parquet, putting down a new concrete screed and then a latex-based covering. The other says that in view of the time the parquet has been down he believes it would be sufficient to apply a leveling compound to the whole area. Who is right? Does anyone have any views or comments? Should we revert to carpet and avoid any potential problems?