An Estimating Quality Assurance Review is a systematic process that verifies the accuracy, completeness, and consistency of construction cost estimates before project approval. It involves reviewing quantity take-offs, labour and material pricing, subcontractor quotations, project scope, and estimating assumptions to identify errors or omissions. A thorough QA review minimizes financial risks, improves bid accuracy, and ensures compliance with project specifications and industry standards. By validating every aspect of the estimate, businesses can submit competitive bids with greater confidence, reduce costly revisions, and enhance overall project profitability. Professional quality assurance reviews support informed decision-making and successful project execution.