Quantity surveyors manage the costs on a construction project To ensure that the construction project is completed within its projected budgethis tasks quantity surveyors complete will differ according to whether they are working on the design or the construction stage of a project (and therefore whether they are working for a consultancy – which focuses on the design stageprepare tender documents, contracts, budgets, bills of quantities and other documentationprice/forecast the cost of the different materials needed for the projectprocure or agree the services of contractors and/or subcontractors who work on the construction of the project