FairangeSeptic · WA
Septic costs in Seattle-Tacoma-Bellevue, WA
Last updated from data: BLS OEWS May 2025 · PPI construction materials 2026-09 · estimates only
How this market compares
Skip the generic national blog post — this page is the Seattle-Tacoma-Bellevue Septic slice of OEWS May 2025. Mean hourly pay here sits about 28% above the national OEWS mean.
Mean Septic pay here is $33.01/hr — national rank 4 of 224 areas that publish this occupation. Compared with other WA areas that report Septic wages, this market is #2 of 9. The published p10–p90 band runs $23.94 to $40.49 (a $16.55 spread around the $33.01 mean; median $30.86).
OEWS counts about 830 Septic Tank Servicers and Sewer Pipe Cleaners jobs in this area. Nationwide that occupation is about 30,650. How a few common projects pencil out against the national mid: Septic Tank Pumping mid estimate $342 here vs $295 U.S. (16% above); Septic Inspection mid estimate $175 here vs $141 U.S. (24% above).
Nearby / same-state markets worth checking: Mount Vernon-Anacortes ($33.39, 0.38 higher); Bellingham ($32.49, 0.52 lower); Bremerton-Silverdale-Port Orchard ($31.59, 1.42 lower).
Sample project ranges
| Project | Low | Mid | High |
|---|---|---|---|
| Septic Tank Pumping | $155 | $342 | $666 |
| Septic Inspection | $48 | $175 | $459 |
Rebates (verify; don’t trust a random Facebook ad)
Check IRS, ENERGY STAR, and DSIRE for any incentives that apply to this project. Start with IRS, ENERGY STAR, and DSIRE.
Local tip: Local code, permit fees, and how busy crews are this month move numbers as much as wage rates do.
What usually moves the number
- Scope surprises: duct repairs, panel upgrades, extra roof layers.
- How booked local crews are this season.
- Materials choices — we only nudge materials with a dampened regional factor. See methodology.
Getting quotes without the circus
- Screenshot our mid/low/high band.
- Ask three licensed, insured pros for written scopes.
- Compare exclusions — permits, haul-away, thermostats, flashing — before crowning a winner.
Check our math
BLS OEWS May 2025 · local hourly means the calculator uses
| Septic (47-4071) | $33.01/hr mean |
Source: official BLS OEWS data for this area · area index: oessrcma.htm.
Contractor markup (2.0× / 2.25× / 2.5×) and the regional materials factor are ours — see methodology.
Paid listing for Seattle-Tacoma-Bellevue, WA Septic. Partner.
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Gear people often ask about
We’re not a store. These spots are for partner recommendations — clearly labeled. We may earn a commission if you buy through a link here.
A decent thermostat won’t fix a bad install, but it can stop the short-cycling arguments.
Partner options Affiliate linkTank, tankless, heat-pump — the sticker price is only half the story.
Partner options Affiliate linkRead the exclusions. “Full coverage” rarely means what the brochure implies.
Partner options Affiliate linkMonthly wage & cost note
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