GallonGaugeGallons, first-hour rating and GPM — the three numbers that decide it.

Cost & Running Cost

Purchase, install and the annual cost of each fuel type.

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How much does a water heater replacement cost in Federal Way, WA?

A 75-gallon gas water heater replacement in Federal Way, WA
$3,335
three or more bathrooms drawing at once · typical range $2,415 – $5,061
Typical totalinstalled, 75 gallon gas$3,335
Range you should see in bidsthree bids on the same scope normally land inside this$2,415 – $5,061
Labor portion45% of the job — this is the part that moves by city$1,501
Material portion55% — bought at national prices$1,834
Plumbers, Pipefitters, and Steamfitters pay near Federal Wayabout $46/hr · Seattle-Tacoma-Bellevue, WA metro$96,250/yr
U.S. mean for the same tradeSOC 47-2152$72,170/yr
Versus the national pricetrade pay here runs +33.4% against the U.S. mean+$435

Notes

  • Where the number comes from. The national price for a 75-gallon gas water heater replacement is $2,900 installed — water heater replacement pricing published for 2026, unit plus installation. Labor is about 45% of that. Plumbers, Pipefitters, and Steamfitters near Federal Way, WA average $96,250 a year against a U.S. mean of $72,170 — a factor of 1.334 — so the labor half is scaled by that and the material half is not. Source: BLS OEWS May 2025 for the Seattle-Tacoma-Bellevue, WA metro area, SOC 47-2152.
  • 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: the heater, removal and disposal of the old one, new flex connectors, a drain pan, an expansion tank where code requires it, and labor.
  • What is not: a gas line upsize, new venting, an electrical circuit for an electric unit, and bringing an old install up to current code. These are the lines that turn a $3,335 quote into a $4,169 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 national average for the job.

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