The development of new infrastructure projects often starts with the demolition of old structures which have reached the end of their life. These can range from houses through to factories or old bridges.

In New Zealand there is a growing trend towards deconstruction which is the systematic dismantling of these structures so materials can be recovered for reuse. This helps reduce the amount of waste going to landfills.

Today, careful planning takes place before demolition starts and established demolition contractors place great importance on management of hazards and accident prevention processes. Demolition work can involve consent applications, disconnection of services, traffic management, machinery operation, recovery of materials and site preparation. There are opportunities to move into supervision and project management.