septic drain field cost
Replacement Costs. Although costs vary according to the size of the leach field, soils and costs of local permits, expect to pay between $5,000 and $20,000 for leach field replacement. It is the most expensive component of the septic system.f the leach field fails, replacing it can be costly. The cost of a new leach field depends on various factors. If your leach field needs replacement, get estimates from several contractors. You might save a few thousand dollars that way.