Post-Construction Cleaning Calculator
Estimate time, staff, supplies, and total cost for cleaning a property after building or renovation work.
How We Calculate This
How the calculation works
Estimated hours are based on floor area, coverage rate (m² cleaned per hour), window count, and construction type multiplier.
Formula
Floor hours = (total area / m² per hour) x construction multiplier
Window hours = windows x 15 mins each x multiplier
Total cost = (hours x hourly rate) + (area x supplies cost per m²)
Construction type multipliers
- New build: 1.0x (standard dust and debris)
- Renovation: 1.3x (paint, adhesive, more dust)
- Major renovation: 1.6x (heavy contamination)
Frequently Asked Questions
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Last updated: March 2026
All calculations are estimates. Always verify quantities and timings for your specific situation.