Please see some links below for supplier's of fire places and surrounds;-
B&Q
www.diy.com/diy/jsp/bq/nav/nav.jsp?fh_eds=%3f&fh_reffacet=categories&fh_location=%2f%2fcatalog01%2fen_GB%2fcategories%3c%7b10096%7d%2fcategories%3c%7b8960095%7d&fh_refview=summary&fh_refpath=facet_83952523&linktype=topnav_heatingcooling_fires