what is a quantity surveyor
A quantity surveyor (QS) is a professional working within the construction industry concerned with construction costs and contracts. Services provided by a quantity surveyor may include:1  Cost planning and commercial management throughout the entire life cycle of the project from inception to post-completion.2  Value engineering.ervices provided by a quantity surveyor may include: 1  Cost planning and commercial management throughout the entire life cycle of the project from inception to post-completion. 2  Value engineering.