Quantity Surveying Services

Scope of Quantity Surveying Services

• Quantity take-off from drawings and preparation of bills of quantities (BOQ)
• Preliminary and detailed cost estimates before tender
• Topographic survey of the plot, levels and boundaries
• Reviewing contractor payment applications against work actually executed
• Assessing variation orders and their cost impact

Why Quantities Come Before the Contract

An accurate bill of quantities is the basis for a fair comparison between contractor bids; without one, prices built on different assumptions are compared as if they were equivalent. An independent take-off reduces variation orders and exposes inflated items before the contract is signed.

Frequently Asked Questions About Quantity Surveying Services

Do you take off quantities from another office’s drawings?

Yes. Take-off is carried out on any complete drawing set regardless of who prepared it.

What is the difference between a preliminary and a detailed estimate?

A preliminary estimate is based on an average cost per square metre and is used at concept stage; a detailed estimate is built item by item from the construction drawings.

Does the service include a site survey?

Yes. The scope covers topographic survey, levels, boundaries and preparation of the topographic drawing where required.