A septic system inspection in Seattle, WA typically costs between $375 and $600 for a standard visual inspection. A full camera/scope inspection with written report runs $700 to $1125.
💡 Pro TipMost mortgage lenders in Seattle require a septic inspection dated within 6–12 months of closing. Schedule early — inspectors book out 1–2 weeks during busy seasons.
Inspection Cost Breakdown — Seattle
| Inspection Type | Typical Cost in Seattle | Best For |
|---|---|---|
| Visual Inspection | $375–$600 | Routine checkups |
| Camera / Scope | $700–$1125 | Real estate transactions |
| Full System Evaluation | $1050–$1675 | Permitting, failure diagnosis |
Pumping Cost in Seattle
If your inspection reveals pumping is needed, expect to pay around $700 on average. See full pumping cost breakdown for Seattle →
Frequently Asked Questions — Seattle
A standard visual inspection in Seattle costs $375–$600. Camera inspections run $700–$1125.
Many lenders and buyers require a septic inspection as part of the sale process. Requirements vary by county.
A standard visual inspection takes 30–60 minutes. A full camera inspection with report takes 1–2 hours.