We are getting quotes for getting our hallway tiled in a checkerboard tile pattern with a border in a standard Victorian style. The main tiles are 10cm so not super small. Its about 1.2m wide by 7m long so 8.4 sqm. We have two quotes so far and they are miles apart so not sure if the low one is a cowboy or if the high one is ripping us off. The low quote (excluding the tiles) is circa £1,400 including floor preparation. The high quote is £4,000. I've never had such a large gap in quotes before so its thrown me! Any advice for anyone whose done something similar would be great. We are in London.