How is commercial carpet cleaning priced per square foot?

Commercial carpet cleaning is priced per square foot after a walkthrough that measures traffic zones and soil load. The per-square-foot rate depends on carpet type, traffic-zone concentration (main aisles versus perimeter offices), soil load at inspection, and whether the visit is a one-time deep clean or part of a recurring maintenance schedule. Walkthrough measurements are taken with a laser distance tool and mapped by zone so the quote separates high-traffic areas from lighter-use zones. For recurring accounts, the per-square-foot rate is set once at walkthrough and stays consistent across scheduled visits until the scope changes.