Thanks guys for your replies. There seems to be many opinions on whether or not to seal marble however I think there must be some benefit otherwise why all the products for this, including the one that came from the supplier of the marble.
I can see the logic in the difficulties of not being able to stop grit etc from scratching the surface considering the tonnage of a human foot on a piece of grit, but couldn’t we say that about most floors, so why do we seal them.
However everyone seems to agree that good housekeeping is a key issue with marble, but even with good matting, this is at the end of the day a domestic entrance hall.
Although I have had one quote (which was from one of the links on here, and yes £150 per square metre + vat was the correct quote) I do realise that this was a very opportunistic price and that no doubt others would be more realistic.
But I would prefer to do this myself as I don’t want to incur a constant maintenance cost every time it goes dull, and I really don’t believe that the only way to delay this is to do nothing (ie no protection) sweep as often as I can and wait for the inevitable, otherwise wouldn’t all marble as used commercially simply be impractical as a material?
I feel sure that once restored there must be a maintenance system to protect this in the future.
MarbleLife: have looked at your website (very impressive) however I’m in West London (ish) and the area is not large and I really do want to try this myself (as I’m not completely without skills here) but am trying to track products, I will return your PM and any advice you can give would be much appreciated.