What is a Quantity Surveyor do (QS)?

what’s a Quantity surveyor


Quantity Surveyor mainly involved in the cost control process of a project as well as the handling of the contractual matters of the project. They are working for all the stakeholders in the construction industry (Clients, Contractors, Consultants, Suppliers, sub-contractors etc.). In some countries, they called cost managers, Cost control engineers, commercial managers or cost engineers.

What are Responsibilities of a Quantity Surveyor

based on the jobs and responsibilities they can be categorized into different categories. Pre-contract QS is only involving in the tender process. The main task of a post-contract QS is controlling the project cost. More importantly, they should control cost and quality without harming the time frame of the project. in the other hand, all the pre-contract QS’s should work as feeding party of a company. they should book future jobs to the company. these are the basic responsibility of a Quantity surveyor. Detailed tasks of a Quantity surveyor who worked for a contractor are showing in below mind map. tasks and responsibilities may change for the QSs who working for the consultants and clients.

Quantity Surveyor as a contract administrator, Delay analyst or claims officer,

Apart from the above key responsibilities QS can be assigned as a contract administrator, Delay analyst or claims officer to handle the contractual matter in construction. There are different responsibilities in these kinds of special roles.

what isMain responsibilities of a QS as Contract administrator can be,

  • Analysing and discussing term and conditions in a contract.
  • Predicting potential risks due to conditions in the contract and mitigating it.
  • Following milestones of the project and take precautions to possible delays.
  • Correspond the contract amendments. 
  • Investigating and agreeing for the change orders (variations).

Main responsibilities of a QS as Delay analyst or Claims officer can be.

  • Analyses of delay in the work or project.
  • Following the critical path and make sure the project reach interim milestones.
  • redrafting project programme based on the identified delays.
  • preparing and negotiating claims


for more insight visit-

Royal Institution of Chartered Surveyors-RICS

Chartered Institute of Building-CIOB

Australian Institute of Quantity Surveyors-AIQS

1 thought on “What is a Quantity Surveyor do (QS)?”

  1. Bidkon Consultants – Bidkon construction consultants offers its experienced solutions to the challenges the industry is facing in successfully deliver projects against a backdrop of finite resources, ambitious time schedules and limited budgets. Optimising resources whilst effectively managing risk, time, quality and cost has become a delicate balancing act for all parties involved. Sustainability is at the heart of what we do at both capital cost and life cycle levels.

    Thanks for sharing amazing post about Quantity Surveyors

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Exit mobile version