As well as the typical work of conservation structural engineers with minimal alteration, other services included advice on cleaning and repairing masonry, finite element analysis of existing structures, forensic engineering, historical mortar analysis and building stones identification. We have also assessed, advised and co-ordinated the sympathetic cleaning of terracotta and faience including Harrods. AKS Ward have been synonymous with the assessment and treatment for the corrosion of steel frames behind masonry elevations since the 1970's, with its common sobriquet "Regent's Street Disease". Conservation projects have included the Tower of London, Kensington Palace, Kings Cross and St Pancras.
The Cliveden Conservation Workshop since its foundation as the National Trust Statuary Workshop in 1982, then as an independent company from 1990, has developed great expertise in specialist areas of conservation such as statuary conservation, architectural conservation, stone, plasterwork, masonry, carving and the decorative arts.
Heritage Testing Ltd is a specialised consultancy and laboratory testing service in support of construction, conservation and remediation. The cases range from vernacular cottages to historic churches, castles and ruins, including Westminster Palace, Syon House and the Royal Pavilion. Services include structural materials analysis of lime mortar, render, plaster, wattle and daub, cob, as well as historic cements and concretes. Defects within concrete structures can be diagnosed, as a precursor to an effective repair solution, including corrosion of embedded reinforcement, depth of cover, carbonation, half cell potential, chloride ion and sulphate ingress and total alkalis.
Hutton + Rostron investigate problems in buildings and the built environment. They provide an independent remedial surveying and consultancy service. They carry out a minimally invasive investigation, and provide expert independent and environmentally sound advice on cost-effective long-term solutions. Their main areas of specialisation are in environmentally friendly control of dry rot and decay, control of moisture, non-destructive surveys using both their Rothounds and other specialist equipment, and building monitoring systems.