Limestone Hearth

[grange]

We have a limestone hearth in front of a log burner. The hearth is looking very grubby and I wondered if anyone could tell me how to clean it please? Many thanks in advance.

[Buenchico]

This company makes them, so they ought to know how to clean them!
http://www.manorhousestone.co.uk/articles/the-best-way-to-clean-limestone-fireplaces-1269/

[BRIGHT SPARK]

You will struggle to clean it in situ...however if you could lift it and take it to a masons yard they will skim a few mm off.Limestone should always be properly sealed after install and periodically resealed as it stains easily...thats why most limestone fireplaces have granite hearths.