PercTallyTank gallons, trench length and what the perc test really decides.

How much does a septic drain field cost in Yakima, WA?

A septic drain field replacement in Yakima, WA
$13,261
1,000 ft² of drain field · typical range $8,160 – $25,501
Typical total$13.26 per ft² of drain field$13,261
Range you should see in bidsthree bids on the same scope normally land inside this$8,160 – $25,501
Labor portion55% of the job — this is the part that moves by city$7,293
Material portion45% — bought at national prices$5,967
Septic Tank Servicers and Sewer Pipe Cleaners pay near Yakimaabout $27/hr · Yakima, WA metro$55,450/yr
U.S. mean for the same tradeSOC 47-4071$53,500/yr
Versus the national pricetrade pay here runs +3.6% against the U.S. mean+$261

Notes

  • Where the number comes from. The national price for a septic drain field replacement is $13.00 per ft² of drain field — drain field replacement pricing published for 2026, $8–$25 per ft² of field. Labor is about 55% of that. Septic Tank Servicers and Sewer Pipe Cleaners near Yakima, WA average $55,450 a year against a U.S. mean of $53,500 — a factor of 1.036 — so the labor half is scaled by that and the material half is not. Source: BLS OEWS May 2025 for the Yakima, WA metro area, SOC 47-4071.
  • Why the city matters, not just the state. Trade pay moves inside a state as much as it does between states. Crews do not commute across a state to bid a job, and materials ship at national prices either way — so a metro wage is the honest input here and a state average quietly rounds four different cities into one number.
  • What is in the price: excavation, gravel or chamber media, perforated pipe, the distribution box, backfill, grading and labor.
  • What is not: the tank itself, a new perc test, engineered plans, a pump chamber if the site needs one, and county permits. These are the lines that turn a $13,261 quote into a $16,576 invoice, so ask about each one before signing.
  • Use this as a bid check, not a quote. It prices an average job in average condition. Difficult access, the state of what is being replaced, the season, and a crew booked out three months all move the real number, and none of them are in a per-unit average.

a septic drain field replacement in Yakima, WA

$13,261 is the typical number, and three bids on the same scope normally land between $8,160 and $25,501.

That is $261 more than the same job priced at the national average.

Why the city changes the number

About 55% of this job is labor — $7,293 of the $13,261 above. Labor is the only part that moves locally; a bundle of material costs what it costs wherever it is nailed down.

Septic Tank Servicers and Sewer Pipe Cleaners near Yakima average $55,450 a year, against a U.S. mean of $53,500. That is a factor of 1.036, so the labor half is scaled by it and the material half is not.

Source: BLS OEWS May 2025 for the Yakima, WA metro area, SOC 47-4071.

What the quote should include

The lines that turn a quote into an invoice

Ask about each of them before you sign. On a job this size they are the difference between $13,261 and something a quarter higher.

Use it as a bid check, not a quote

This prices an average job in average condition. Access, the state of what is being replaced, the season, and a crew booked out three months all move the real number, and none of them are in a national average.

If a bid lands outside $8,160 – $25,501, that is not automatically wrong — but it is the question worth asking out loud.

Nearby sizes

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