Advisory services relating to the alteration of buildings; Advisory services relating to the construction of buildings; Advisory services relating to the maintenance of buildings; Advisory services relating to the repair of buildings; Application of coatings to buildings; Building of apartment buildings; Cleaning of buildings (exterior surface); Cleaning of buildings (interior); Cleaning of public buildings; Construction of buildings; Demolition of buildings; Dismantling of buildings; Erection of pre-fabricated buildings; Installation of fittings for buildings; Interior refurbishment of buildings; Maintenance and repair of buildings; Maintenance and repair of utilities in buildings; Maintenance of buildings; Painting and decorating of buildings; Painting of buildings; Preservation of buildings; Proofing of buildings against pest and vermin access; Redevelopment of buildings; Refurbishment of buildings; Renovation of buildings; Rental of apparatus for use in the construction of buildings; Rental of apparatus for use in the repair of buildings; Repair of buildings; Restoration of buildings; Wrecking of buildings (demolition)