Due to staff workloads, we cannot support the over-the-counter permit phone service. If you have trade permit questions, contact us at OTCpermits@seattle.gov and we will respond in the order they are received.
You need a permit to install boilers and pressure vessels in the city of Seattle. There are some special requirements to consider before applying for a permit. Boilers or pressure vessels must be:
When choosing an installation location for boilers, consider:
If you are a contractor working in Seattle, you may also need a business license, even if your office is outside the city.
Our fees for boiler installation permits are based on the size of the heating surface and electric power. Our fees for pressure vessels are based on their length times diameter in feet.
We issue boiler and pressure vessel permits on the same day that you apply.
Create an account. Go to the Seattle Services Portal and click the Register for an Account link in the upper right of the screen. Follow the prompts to create an account.
Start your application. Complete the Boiler-Pressure Vessel Permit application online using the Seattle Services Portal. (Click on Permits - Trade, Construction, and Land Use to get to the boiler permit.) Follow the application prompts. You will need:
If you are unable to use the Seattle Services Portal, you can submit a paper application.
Schedule an intake appointment. Schedule an electronic intake appointment through the Seattle Services Portal. You must upload all application documents by 7:00 a.m. on the day of your appointment. We may contact you that day for more information.
If you cannot submit online, you can do one of the following:
Pay fees. You need to pay your permit fees at intake. If you perform a high volume of installations, you may want to set up an advance deposit (trust) account with us. Trust accounts require that you maintain a minimum balance in the account. Fees for your permit applications are automatically drawn from the account ad you submit them. For more information on setting up an escrow account, call the OTC Permit Desk at (206) 684-8464.
Pay final fees. We will notify you if you need to pay any final fees before we issue your permit.
Print your permit. We will notify you when we have issued your permit and the documents are available in your Seattle Services Portal. Print the permit and approved plan set.
Display your permit. Place your permit in a visible location on the project site.