Inspection Defect Repair Cost Calculator
Estimates total repair cost based on the number and severity of defects found during an inspection, combined with labor rates and material costs.
Formula
Labor Cost (per severity) = Count × Labor Hours per Defect × Labor Rate ($/hr)
Material Cost (per severity) = Count × Material Cost per Defect
Severity Subtotal = Labor Cost + Material Cost
Base Repair Cost = Σ (Minor + Moderate + Major Subtotals)
Overhead Cost = Base Repair Cost × (Overhead % ÷ 100)
Subtotal after Overhead = Base Repair Cost + Overhead Cost
Contingency Reserve = Subtotal after Overhead × (Contingency % ÷ 100)
Total Repair Cost = Subtotal after Overhead + Contingency Reserve
Assumptions & References
- Defects are classified into three severity tiers: Minor (cosmetic/low-impact), Moderate (functional but not critical), and Major (safety-critical or structural).
- Labor hours per defect represent average repair time for that severity class and should be adjusted based on trade type and site conditions.
- Material costs per defect are average estimates; actual costs vary by region, supplier, and defect type.
- Overhead/markup covers contractor profit, insurance, equipment, and administrative costs (industry standard: 10–20%).
- Contingency reserve accounts for unforeseen complications discovered during repair (industry standard: 5–15%).
- Labor rates should reflect local prevailing wages or union rates as applicable.
- This calculator provides an estimate only; a licensed contractor or inspector should provide a formal quote.
- References: ASTM E2018 (Property Condition Assessments), RSMeans Cost Data, ASHRAE guidelines for building inspections.