I have recently exposed a Victorian fireplace in a 1st floor bedroom. There is no fireback, no back hearth and a damaged front hearth. Where the back hearth should be (i.e. level concrete) there is just loose dirt, it is not solid and cannot be easily cleaned away as yet more is loosened. I am wary of simply concreting over the top of this. I do not want to use the fireplace, I just like it as a feature and am happy to leave it with no surround or fireback, just neatly exposed. Can anyone advise what is the best thing to do regarding the back and front hearths? Thankyou!! :?