In today’s fast-paced construction industry, accurate mechanical estimation is more than a budgeting tool—it's a critical factor in project success. Yet, estimation errors remain alarmingly common, causing delays, profit losses, and reputational damage for contractors. In this guide, we explore why these errors occur so frequently and how professional mechanical estimating services can eliminate these risks, leading to smoother project execution and improved profitability.1. Why Bidding Errors A