Your estimate was careful and still lost money. Data-driven construction estimating finds the wrong number behind every bad bid before you submit the next one.

Here’s a pattern I’ve watched play out the same way more times than I can count, across twenty years of consulting contractors: an estimator does everything right. Walks the site. Gets three sub quotes per trade. Builds a clean takeoff. Adds a contingency line.

The bid wins. Four months in, the margin is gone.

Nobody made a dramatic mistake. There’s no single moment you can point to. The estimate was careful — and it was still wrong, because it was built on the same number every estimate at that company gets built on: last year’s wage rate, with a buffer tacked on for good measure. You’re not the problem. The operating model you’re estimating from is.

Here’s what’s actually happening — and what to do about it.

Keep reading this article on projectwatchpro.com

Explore related articles you won’t want to miss:

Month-End Job Costing Is a Post-Mortem, Not a Strategy | PWP

Best Job Costing Software Canada 2026 | ProjectWatchPRO