Details below of a Victorian Tiled floor I renovated in Penrith earlier this year. The floor had previously been hidden under laminate flooring and the mat well had been concreted over and other tiles were missing and replaced with concrete infill.
Restoring Victorian Floor Tiles
I carried out a damp test and started by removing the concrete infill and levelling the mat well with a self-levelling compound. Fortunately I had been able to source reproduction tiles that were a pretty good match to the originals which is amazing bearing in mind that the floor was originally laid in 1831 (pre Victorian in fact).
Before replacing the missing tiles I cleaned the existing floor with a diluted mixture of Tile Doctor Remove and Go and NanoTech UltraClean; Remove and Go is a coatings remover so as well as cleaning the floor it also removed the traces of adhesive that was used to stick down the line. I washed down the floor and found there were still some stubborn marks which I tackled with neat Remove and Go and a steam cleaner. Once I was happy with the floor I gave it another rinse and then set about fixing the replacement tiles.
Sealing Victorian Floor Tiles
I needed the floor bone dry before sealing so I allowed it to dry out for a couple of days before returning. I sealed the tiles with Tile Doctor Seal and Go which adds a nice subtle shine however I did find the Victorian tiles to be extremely absorbent and so needed seven coats of sealant in total which took much of the day. The sealer did well to bring out the deep colours in the tile as well as brought out the colour in the tiles as well as providing the lovely satin finish. The customers were extremely satisfied with the final result
Source: Tile, Stone and Grout Restoration Service in North-Cumbria