Trade directory · Federal Way metro · Washington

Plumbing contractors in
Federal Way, Washington.

A public directory of licensed plumbing contractors serving greater Federal Way. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.

Licensed Establishments
2,140
U.S. Census Bureau
Peak Season
October through March - freeze protection, storm damage, and holiday prep drive winter demand
Market estimate
Avg. Response Time
24-48 hours for quotes, same-day for emergency calls
Operator average
Avg. Hourly Wage
$42/hr
Bureau of Labor Statistics
§ A · Market rates

Common Job Costs

FEDERAL WAY-WA · LOCAL ESTIMATES
Service
Description
Cost Range
Drain cleaning
Typical range based on local drain cleaning jobs.
$150 – $350
Water heater installation
Typical range based on local water heater installation jobs.
$1,200 – $3,500
Toilet replacement
Typical range based on local toilet replacement jobs.
$300 – $800
Kitchen faucet installation
Typical range based on local kitchen faucet installation jobs.
$200 – $500
Sewer line repair
Typical range based on local sewer line repair jobs.
$2,500 – $8,000
Emergency service call
Typical range based on local emergency service call jobs.
$200 – $450
§ B · Regulatory

Licensing Requirements

WA
§1

Licensing Requirements

WA requires Plumbing Contractor License through Department of Labor & Industries. Must pass business law exam and plumbing specialty exam. Requires 4 years experience or apprenticeship completion. Renewed every 2 years with 8 hours continuing education.

§2

Permit Requirements

Federal Way requires permits for water heater replacement, new fixtures, gas line work, and sewer connections. Permits range $75-$200. All work must be performed by licensed contractors.

§3

Inspection Schedule

Rough-in inspection before concealment, final inspection upon completion. Schedule 24-48 hours in advance through Federal Way Building Department.

§4

Insurance Minimums

WA requires $50,000 public liability insurance for plumbing contractors. Federal Way may require additional coverage for larger commercial projects.

§ C · Path to license

How to Get Licensed

5 STEPS
1

Meet experience requirements

Complete 4-year apprenticeship program or document 4 years plumbing experience. Submit experience verification forms to WA Department of Labor & Industries.

01/05
2

Pass required examinations

Take and pass business law exam and plumbing specialty exam through PSI testing centers. Study guides available through L&I website. Exams cost $68 each.

02/05
3

Submit license application

File contractor license application with L&I including experience documentation, exam results, and $81 application fee. Processing takes 4-6 weeks.

03/05
4

Obtain required insurance

Secure minimum $50,000 public liability insurance and file certificate with L&I. Insurance must remain active throughout license period.

04/05
5

Register with Federal Way

Register business with Federal Way business licensing if performing regular work in city limits. Some permits may require local contractor registration.

05/05
§ D · Field notes

About This Market

UPDATED APR 2026

Federal Way's plumber market serves 97,000 residents across established neighborhoods with aging infrastructure and new construction near transit corridors. High demand driven by 1970s-80s housing stock needing sewer line replacements, water heater upgrades, and repiping. Competition is moderate with good margins on emergency work and larger renovation projects. Costs run 10-15% above state average due to King County wage standards and permitting complexity.

Get your specialty contractor license through L&I first - no shortcuts. Federal Way building department runs tight inspections, so know your codes cold. Winter storms create emergency call spikes, but summer remodel season pays better. Focus on older neighborhoods like Brooklake and Eastside for steady repair work. Commercial opportunities growing around light rail development, but you'll need bonding capacity and prevailing wage compliance.

Data Sources
  • Median hourly wage
    Bureau of Labor Statistics Occupational Employment Statistics
  • Licensed establishments
    U.S. Census Bureau County Business Patterns
  • Licensing requirements
    WA Department of Labor & Industries
  • Permit requirements
    Federal Way Building Department
  • Insurance minimums
    WA Administrative Code Title 296
§ E · FAQ

Frequently Asked Questions

05 QUESTIONS
Q/01

How much does it cost to hire a plumber in Federal Way?

Emergency calls run $200-450, drain cleaning $150-350, and water heater installation $1200-3500. Rates reflect King County wage standards and local permit requirements per Federal Way Building Department fee schedules.

Q/02

Do plumbers need a license to work in Federal Way, WA?

Yes. WA Department of Labor & Industries requires a Plumbing Contractor License with specialty exam and 4 years experience. Federal Way only allows licensed contractors to pull permits per municipal code.

Q/03

How long does it take to get plumbing permits in Federal Way?

Standard permits issued within 3-5 business days. Plan reviews for complex work take 10-15 business days. Emergency repairs under $500 may qualify for express permits according to Federal Way Building Department.

Q/04

What's the average salary for plumbers in Washington?

Bureau of Labor Statistics reports median hourly wage of $42/hour ($87,360 annually) for plumbers in Washington state, with Federal Way area typically running 5-10% above state median.

Q/05

When is peak season for plumber work in Federal Way?

October through March sees highest demand due to freeze damage, storm-related issues, and holiday preparation. Summer brings steady remodel work but fewer emergency calls per industry data.

§ F · Directory

Plumbing contractors in Federal Way

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