Harper & Allan Masonry Ltd were awarded the contract for repair works to the home of the Clan MacKenzie in November 2015 working alongside LDN Architects in Forres.
The castle is believed to have been built on the site of a very ancient Pictish fort from before the 12th century. The current castle is the result of work carried out in the early 17th century by Sir Roderick Mackenzie, the ancestor of the Earl of Cromartie.

Duff House Mausoleum was built in 1793 approx. mile mile from Duff House located on the outskirts of Banff, Aberdeenshire. The mausoleum was built by the second Earl of Fife and contains the remains of 21 members of the Duff of Duff House family with the earliest remains being that of Alexander Duff of Braco who died in 1705.

St Margaret of Scotland Episcopal Church is situated in the Gallowgate, Aberdeen and was built in the late 19th century by Father John Comper. St Margaret’s is a Category B Listed Building.
Harper and Allan Masonry were contracted by Stuart Boon Architect from Architectonics to undertake conservation and repair works to the Comper window situated to the West of the building.