Buying & Rules
Septic Tank Inspection: What’s Checked and What It Costs (2026)
What a septic inspector checks, the four types of inspection, real 2026 costs by state, how often you need one, and what to do when buying a home with septic.
Author: Mahboob Alam
Mahboob Alam is the founder and lead writer of OffSewer. He researches septic systems, cesspools, drain fields and private wells using U.S. EPA guidance, state health department rules and university extension publications, and turns them into plain-English guides with real costs and step-by-step help for homeowners who are not on city sewer.