Highland Stone & Lime Conservation is a Nairn stonemasonry and limework business specialising in the conservation and restoration of stone buildings and structures using traditional techniques and materials. Its director, David Clarke, trained with Historic Scotland in East Lothian and has worked on Tantallon Castle, St Columba's Chapel on Lewis and Penicuik House as well as small residential projects. Services include stone repair and replacement, lime pointing and harling, stone consolidation, vegetation removal, wall-capping advice and periodic building inspections.