Septic work in Snohomish County costs materially more than the national averages you will find online — and the national figures, if you used them to budget, would understate every job. This page lists what local septic work actually costs here, with every figure sourced and dated. Nothing on this page is a quote: a range is a range, and only a provider who has seen your property can confirm a price for it.
Last checked: November 5, 2026. Prices change; if you are reading this months later, treat the figures as a starting point and confirm them with the provider.
Pumping
| Service | Local figure | Source |
|---|---|---|
| Pumping, up to 1,000 gallons | From $650 | Septic Solutions LLC pricing guide, June 2026 |
| Pumping, typical range | $650–$1,000 | The Serviss Group; Septic Solutions LLC |
| Pumping, if the inspector recommends it at an inspection | $400–$700 | Stanwood Septic, 2026 |
| Savvy Septic pumping rebate | $100 back, where eligible | Snohomish County Health Department |
The $650 starting price includes removal and disposal, a post-pump check of the accessible components, and the county reporting the pumper files for you. Do not use the roughly $428 national average here, and do not use directory-site figures near $380 — they are templated estimates that contradict the named local operator's published $650 starting price. Our guide on septic pumping costs explains what changes the price.
Inspection
| Service | Local figure | Source |
|---|---|---|
| Routine inspection | Around $500 | Septic Solutions LLC, October 2026 |
| Routine inspection, range | $300–$600 | Stanwood Septic; Western Washington guides |
| Property-transfer inspection | $750 | Septic Solutions LLC, October 2026 |
| County Report of Property Transfer fee | $245 (Nov 1, 2026–Oct 31, 2027); $255 from Nov 1, 2027 | Snohomish County Board of Health fee schedule (Ordinance BOH26-03) |
| Report filing fee | $42, rising to $47 in November 2026 | Board of Health Ordinance BOH26-04 |
| Pumping filing fee | $16 | Board of Health Ordinance BOH26-04 |
| Combined inspection + pumping visit | $1,000–$1,500 | The Serviss Group |
| Savvy Septic inspection rebate | $100 back, where eligible | Snohomish County Health Department |
A property-transfer inspection at $750 plus the $245 county fee is $995 before pumping, if pumping is also needed. The county fee is charged by the county for reviewing the Report of Property Transfer; it is on top of the contractor's inspection price, not included in it. Our guide to the property-transfer rule explains the requirement, and our inspection page explains what the inspection covers.
Repair
Septic repair has no single price, so this page keeps the categories separate — do not collapse them into one range.
| Service | Local figure | Source |
|---|---|---|
| Minor component repairs (baffle, pump servicing, distribution box) | $300–$1,500 | The Serviss Group |
| Larger single-component repairs (failed pump, hydro-jetting a clogged pipe) | $1,500–$5,000 | Davis Septic Design |
| Component examples: pump replacement | $500–$1,400 (up to ~$3,000 with heavy excavation) | Western Washington Septic System Guide |
| Component examples: distribution box | $500–$1,500 | Western Washington Septic System Guide |
| Component examples: effluent filter | $200–$300 | Western Washington Septic System Guide |
| Component examples: riser | $300–$600 | Western Washington Septic System Guide |
| Component examples: hydro-jetting | $300–$600 | Western Washington Septic System Guide |
| Component examples: control panel / alarm | $300–$500 | Western Washington Septic System Guide |
| Tank-only replacement | $6,000–$14,000 | Septic Solutions LLC, August 2026 |
| Savvy Septic minor-repair rebate | Up to $200 back, where eligible | Snohomish County Health Department |
The two minor-repair ranges ($300–$1,500 and $1,500–$5,000) come from different sources covering different scopes — small parts versus larger single-component jobs. Both are presented, not averaged. No local company publishes a generic flat "septic repair" price; all quote per job. Our repair page explains how diagnosis comes before any estimate.
Drainfield and full system
| Service | Local figure | Source |
|---|---|---|
| Drainfield repair | $3,000–$12,000 | The Serviss Group |
| Drainfield replacement | $5,000–$20,000 | Septic Solutions LLC |
| Drainfield replacement, alternate range | $3,000–$15,000 (about $7,000 typical conventional) | Western Washington Septic System Guide |
| Full system replacement | $15,000–$40,000+ | The Serviss Group |
| Full engineered redesign and replacement | $25,000–$50,000+ | Davis Septic Design |
| Savvy Septic replacement grants | Up to $30,000 advertised; county fact sheet caps replacement grants at $20,000 per property | Savvy Septic programme / Snohomish County Replacement Grant fact sheet |
The redesign figure is not the standard drainfield price — it covers design, soil testing, permits, a new tank and field, and possibly an engineered mound system. One documented local job puts the scale in context: a North Marysville drainfield repair at $5,056 for a 1988 system with a reusable tank. Our guide on signs a drainfield is failing explains how to tell a repair from a replacement, and our Savvy Septic rebates guide explains the grants — including the discrepancy between the advertised $30,000 and the county fact sheet's $20,000 cap.
How to use these numbers
Use them to budget, to sanity-check a quote, and to decide whether a job is worth a second opinion — not as a price for your property. When you ask a provider for a price, give them the facts that move it: tank size, whether the lids are buried or have risers, the system's age, and your town or ZIP code. Ask whether county fees are included or extra, whether lid-digging is included, and whether the price changes if pumping is combined with an inspection. And check the county money first: completing the free Savvy Septic workshop before the work is what makes the $100 pumping and inspection rebates available.
All figures verified November 3–5, 2026 from the sources named in each table. National averages shown for comparison only (pumping ~$428; inspection $200–$725; drainfield $3,000–$15,000). Full research: local pricing verification, November 2026.
Need a price for your property? Ask about septic inspection, pumping, or repair — a local septic professional will get in touch, usually within an hour between 7am and 8pm Pacific.
Septic Tank Pumping in Snohomish County, WA