Other building and industrial cleaning activities

**Official Rulings:** - Cleaning of water supply pipelines

This class includes: - exterior cleaning of buildings of all types, including offices, factories, shops, institutions and other business and professional premises and multiunit residential buildings - specialised cleaning activities for buildings such as window cleaning, chimney cleaning and cleaning of fireplaces, stoves, furnaces, incinerators, boilers, ventilation ducts and exhaust units - cleaning of industrial machinery - other building and industrial cleaning activities, n.e.c.

This class excludes: - steam cleaning and blasting and similar activities for building exteriors, see 43.99