Home Advisor mold buildup mold buildup Removing Toxic Mold mold buildup Home Advisor According to HomeAdvisor According to HomeAdvisor.com mold buildup $1,113 to $3,339 HomeAdvisor, mold remediation costs $1,891 on average $1,135 to $3,182 spend up to $6,000 giving $10-25 per square foot or higher cost of mold remediation costs $1,891 on average according to HomeAdvisor mold buildup mold buildup according to HomeAdvisor Source Home Advisor $2,230 for mold remediation