Case Study: O'Brien Construction Company achieves streamlined preconstruction and real-time collaboration with ProEst

How ProEst Helped Redefine the Precon Process

O’Brien Construction Company, a Troy, MI–based general contractor specializing in multi-family housing, historic preservation and renovations, faced a preconstruction bottleneck as its business and bid volume grew. The 56-employee, $100M firm had been relying on Excel spreadsheets for estimates, which slowed collaboration and made departmentalizing precon work difficult. On the recommendation of partners, O’Brien adopted ProEst’s estimating solution in 2014 and later transitioned to the ProEst cloud platform in 2020 to support broader integration and remote work.

ProEst replaced manual Excel workflows with a cloud-based estimating system integrated with ComputerEase and Procore, enabling real-time collaboration, standardized client-facing reports and stronger bid-day analysis. The ProEst solution helped O’Brien produce 150+ budgets annually, keep precon timelines on track during remote work, and present consistently formatted, professional reports to clients; O’Brien also credits ProEst’s responsive support and ongoing product enhancements as factors in supporting the company’s projected 50% growth through 2026.

O’Brien Construction Company

Eddie O’Brien

Founder