Thomas Johnstone Ltd were employed as Principal Contractor for the refurbishment of Cassillis Castle. This Grade A Listed building is three distinct historic buildings in one - the main part being the 5-storey stone built keep which dates from the 12th Century; the Keep was altered and refurbished in the 17th Century with a new staircase tower constructed and various internal alterations, with the third most recent addition comprising a mansion house constructed in the 1830’s which involved further alterations to the original Keep and the 17th century stair tower.
The castle was fully refurbished over a two year period in two phases. The first phase was to repair the roof and reinstate the roof coverings, render and stonework repairs, rainwater goods replacement and rot eradication works, an exercise which is complicated not just by the nature of the historic buildings but by the various bat species which currently occupy the roof voids.
The second phase comprised of the full internal refurbishment of the building into a 12 bedroom family home extending to some 110 rooms. All the historical features were retained and some hidden ones discovered during the works. New services were installed throughout the Castle all of which were carefully hidden within the fabric. The basement was in very poor condition and had to be completely stripped out then a tanking system installed prior to it being reconstructed. Care was taken to document then replicate the finishes in the basement to match those previously installed.
Client: Mr & Mrs Armstrong
Architect: Doig and Smith