Best Septic Tank Replacement in Chicago, IL

When does a septic tank need to be replaced in Illinois?

A tank needs replacement when it has severe structural damage, extensive corrosion (common in older steel tanks), multiple large cracks, or when it is too small for current household usage. Concrete tanks can last 40+ years, while steel tanks often need replacement after 15-25 years.

How much does it cost to replace a septic tank in Illinois?

Septic tank replacement typically costs $5,000 to $10,000, including removal of the old tank, a new concrete or fiberglass tank, and reconnection to existing lines. Regional labor costs, permitting fees, and excavation requirements in developed areas affect pricing.

Can I upgrade to a larger tank during replacement in Illinois?

Yes, upgrading to a larger tank during replacement is common and often recommended. Your local health department must approve the new tank size under the Illinois Private Sewage Disposal Code (77 Ill. Adm. Code 905), and it must meet sizing requirements based on the number of bedrooms in your home.