Tracking Historical Costs: Turning Past Projects Into Better Estimates

Historical cost tracking is one of the best ways for subcontractors to improve estimating accuracy. Every completed project contains valuable information that can help price future work more effectively.

Historical costs may include material pricing, labor hours, productivity rates, equipment costs, subcontractor pricing, vendor quotes, change orders, and final project margins. When this information is organized properly, it becomes a powerful estimating tool.

The first step is collecting project data consistently. Costs should be tracked by scope, system, area, material type, labor activity, or assembly. The more organized the data is, the easier it becomes to use.

Labor productivity is especially important. Knowing how many hours were actually required for specific work activities helps estimators avoid relying only on generic production rates. Real company data is often more valuable than standard assumptions.

Historical cost data should also be adjusted. A past project may not match the next project exactly. Location, schedule, access, complexity, crew experience, escalation, and project conditions all affect cost.

Another benefit of historical tracking is better decision-making. Subcontractors can identify which types of projects are profitable, which clients create risk, and which scopes commonly produce change orders or overruns.

At TBT Estimating Services, we believe estimating should improve over time. By tracking historical costs, subcontractors can build stronger bids, better budgets, and more reliable pricing strategies.

Your past projects should help you win the next one at the right number.