How much does septic repair cost in Illinois?

Septic repair costs vary widely by the type of repair needed. Tank pumping runs $250–$500. Replacing a failing pump or float in an aerobic system runs $300–$800.

Drain field repairs — the most expensive scenario — can run $3,000–$15,000+ depending on the extent of failure and whether the field can be repaired or must be replaced entirely.

Vinson and Sill provides flat-rate quotes before any work starts, and financing is available for larger repairs through our Hearth partnership.