Common Estimating Mistakes That Cost You Money

Estimating Errors Are Costly

Inaccurate estimates lead to cost overruns, disputes, and project failure. Avoid these common mistakes.

Common Contractor Mistakes

Underestimating Labor

Using productivity rates that are too optimistic. Account for real-world conditions.

Missing Scope Items

Not carefully reading the entire bid package. Review everything twice.

Outdated Pricing

Using old material prices in volatile markets. Get current quotes.

Ignoring General Conditions

Supervision, temporary facilities, safety, and cleanup add up.

Insufficient Contingency

Every project has surprises. Include appropriate contingency.

Common Owner Mistakes

Unrealistic Budget Expectations

Not researching actual market costs before setting budgets.

Incomplete Scope

Vague specifications lead to change orders and disputes.

Choosing Lowest Bid

The lowest bid often means lowest quality or missing scope.

AI-Assisted Accuracy

Bidroom's AI tools help validate estimates against market data, catching potential issues before they become problems.