Accurate cost estimating is one of the most crucial aspects of any construction project. Whether you're building a home extension, a commercial space, or a large-scale development, your ability to plan and manage your budget can make or break the outcome. Unfortunately, many construction projects in the UK run into trouble because of flawed estimates made early in the process. This is where the expertise of a Quantity Surveyor (QS) becomes invaluable. These professionals bring both precision and foresight to your financial planning, helping you avoid the all-too-common estimating mistakes that lead to budget overruns, delays, and unnecessary stress. In this article, we’ll explore five common construction cost estimating mistakes—and more importantly, how Quantity Surveyors help clients and contractors avoid them. 1. Underestimating Project Scope The Mistake: Many cost estimates fall short simply because the full scope of the project isn’t clearly understood or...