How Much Does Septic Service Cost in McHenry County?
Last updated: 2026-10 · Crystal Lake Insights
Many Crystal Lake-area homes — especially in unincorporated McHenry County — rely on private septic systems. Here's what routine and emergency septic service costs.
Typical Septic Costs
- Septic pumping: $300–$500 (every 3–5 years)
- Inspection: $150–$350
- Repairs: $500–$3,000+
- New system install: $5,000–$15,000+
Regular pumping is the cheapest way to avoid an expensive field failure.
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