What actually drives your number
The calculator combines four things: which part of the property is affected, how many square feet, how contained the job needs to be, and any add-ons like testing or drywall replacement. A small bathroom spot and a whole-house remediation land in very different places for exactly these reasons. The number you get here is a starting point, not a final price. Every project still gets an on-site or photo-based assessment and a written, itemized quote before any work is scheduled.