T.J. Ferris Stonemasonry is an Edinburgh firm that restores heritage properties, from listed buildings and Grade A structures to dovecotes, churches, bridges, chimneys and estate walls. Its site covers stone indenting and mortar repairs, DOFF and other approved stone cleaning, lime pointing with colour-matched mortars, lime harling and renders, and conservation of historic brickwork including removal of cement pointing and brick matching. It lists Ayton Castle, where it restored the dovecot, as a long-running client and offers analysis of stone and mortars to match historic materials.