Quantity Surveyor - Contractor's Quantity Surveyor

Contractor's Quantity Surveyor

A contractor's QS is responsible for the performance of operations that mirror those of the owner's QS; i.e., the measurement and pricing of construction work, but specifically that actually performed by the contractor (and the contractor's subcontractors) as opposed to the construction work described and measured in the construction contract between the owner and the contractor. Such a difference in quantity of work may arise from changes required by an owner, or by an architect or engineer on an owner's behalf. Typically, the settlement of a change (often referred to in a contract as a 'variation'). (See the following reference sources: "Fundamentals of Construction Estimating and Cost Accounting," by Keith Collier (2nd ed.) (Prentice-Hall, 1987); "Construction Contracts," by Keith Collier (3rd ed.) (Prentice-Hall, 2001) These two texts each contain a comprehensive glossary.)

The role of a contractor's QS will extend further than the day to day running of building projects and will cover such other areas as sub-contract formation, forecasting of costs and values of the project, cash flow forecasts and the collation of the operation and maintenance manuals of the project (O&M manuals). This increase in the capacity of the surveying profession has led to an increased demand for qualified personnel and goes some way to explaining the popularity of related degrees at university.

Some contractors and others may attempt to rely on a general accountant to deal with construction costs, but usually this is not effective, primarily because an accountant does not have the technical knowledge to accurately allocate costs to specific items of work performed, especially at times prior to the particular work's completion as required to make accurate assessment of the amounts to be paid to the contractor during the course of the work.