Washington Boiler, Steam Fitting, Process Piping Contractor License

The Boiler, Steam Fitting, Process Piping Contractor License allows you to do the following work:

• Install, service, and repair power boiler installations
• Chimney connections
• Flues
• Refractories
• Burners
• Thermal insulation and accessories
• Fuel and nonpotable water lines from the source of supply to boilers
• Process and specialty piping and related equipment
• Pneumatic and electrical control
• Sheet insulation
• All other equipment, including solar heating equipment associated with these systems
• Hot water heating systems, including:
  • Fire-tube and water-tube steel power boilers
  • Hot water heating low-pressure boilers
  • Steam fitting and piping
  • Fittings
  • Valves
  • Gauges
  • Pumps
  • Radiators
  • Convectors
  • Hydraulics
  • Fuel oil tanks
  • Fuel oil lines

How to Get the Boiler, Steam Fitting, Process Piping Contractor’s License in Washington?

1. Determine the business type and register with the Department of Revenue:
   • If setting up a sole proprietor or partnership, determine the business name
   • If starting a Limited Liability Company (LLC) or a Corporation, refer to the Secretary of State for information on how to incorporate the business
2. Complete and get a Washington Continuous Contractor Surety Bond for the required amount
3. Purchase a general liability insurance policy for the required amount
4. Fill out an Application for Contractor Registration with notarized signatures. If unsure of how to correctly fill out the application form, the Washington State Department of Labor & Industries offers help with the application and business registration to those who visit their local offices
5. Gather all the previous documents and send them with the registration fee to:
   Washington State Department of Labor & Industries
   Contractor Registration
   P.O. BOX 44450
   Olympia, WA 98504-4450
   It is also possible to visit a local office to deliver all the documents and fees
6. Expect a registration card from the Washington State Department of Labor & Industries after the application is processed
7. Note that once the business has been registered, it will be listed in the Washington State Department of Labor & Industries Verify a Contractor, Tradesperson, or Business website