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Overall, the national average for asbestos removal price ranges from $800 to $3,000. An entire house or building, however, could average tens of thousands of dollars. Depending on the asbestos abatement cost per square foot, a complete asbestos removal for a 1,500-square-feet home could run as high as $20,000 to $30,000.
Asbestos removal usually costs $200-$400 per hour, plus an inspection fee of $500. Lead paint removal usually costs $8-$15 per square foot. Old septic tanks may need to be dealt with when you demolish an old house. If you want to seal off the old tank, the cost can be as much as $5000. You should have a clear plan for what will come after demolition.