Concrete Surface Prep and Coating Labor Cost Estimator
Estimate total labor costs for concrete surface preparation and coating projects based on area, preparation method, coating type, number of coats, crew size, and local labor rates.
Formulas Used
Prep Crew-Hours = Area (sq ft) × Prep Rate (hr/sq ft)
Coating Crew-Hours = Area (sq ft) × Coating Rate (hr/sq ft per coat) × Number of Coats
Total Crew-Hours = Prep Crew-Hours + Coating Crew-Hours
Wall-Clock Hours = Total Crew-Hours ÷ Crew Size
Base Labor Cost ($) = Total Crew-Hours × Labor Rate ($/hr)
Total Cost ($) = Base Labor Cost × (1 + Markup % ÷ 100)
Cost per Sq Ft ($) = Total Cost ÷ Area
Assumptions & References
- Labor rates are crew-hours (each worker's hours are counted individually toward cost).
- Prep rate benchmarks sourced from RSMeans Concrete & Masonry Cost Data and SSPC surface preparation standards.
- Shot blasting (~0.020 hr/sq ft) and diamond grinding (~0.025 hr/sq ft) are typical for CSP 3–5 profiles per ICRI Guideline 310.2R.
- Coating application rates are based on roller/squeegee application; spray application may reduce labor 15–25%.
- Epoxy coatings typically require 2 coats (primer + topcoat); polyurea systems may be single-coat.
- Overhead & profit markup of 15–25% is standard for commercial concrete coating contractors (PDCA industry data).
- Estimate does not include material costs, equipment rental, mobilization, or surface repair/patching labor.
- Assumes normal working conditions; confined spaces, elevated surfaces, or hazardous environments add 20–50% to labor.
- Drying/curing time between coats is not included in labor hours but affects project schedule.