Welcome to Local 669

Thank you for taking the time to learn more about us through our website.

Welcome to Sprinkler Fitters Local 669's Website

Thank you for taking the time to visit our website.  Local 669 is over 13,000 members strong throughout the United States.  Our members on the front lines for providing life saving, property saving Fire Sprinkler and Suppression Systems.  Learn more about us today through our website.
Thank you.

Fire Prevention Month was established to commemorate The Chicago Fire of 1871, also called the Great Chicago Fire, burned from October 8 to October 10, 1871, and destroyed thousands of buildings, killed an estimated 300 people and caused an estimated $200 million in damages. Legend has it that a cow kicked over a lantern in a barn and started the fire, but other theories hold that humans or even a meteor might have been responsible for the event that left an area of about four miles long and almost a mile wide of the Windy City, including its business district, in ruins.
Today, the Chicago Fire Department training academy is located on the site of the O’Leary property where the Great Chicago Fire started. In 1997, the Chicago City Council passed a resolution exonerating Catherine O’Leary and her cow.

Local 669 Newsletter

Each month Local 669 publishes our Membership Newsletter. The newsletter is mailed to all members but also posted to the Members Only section to our website. If you would like to opt in or out of the mailed version of the Newsletter you can send us an email through the Contact Us page of the website.

This Month's Highlights include:

  • Officer Reports
  • Business Agent Reports
  • 2022 Apprenticeship Contest
  • District Events
  • Union Sportsmen's Alliance Giveaway
  • And More!
RSS News Feed
Top News

News Archive

To see previous articles please click here .


OSHA Portal


OSHA Portal

Members Only

Please log in to access the Members Only sections. You will not have access to the Members Only section until the UA has issued you a UA Card Number. Call us if you've lost your UA Card for a replacement.

Read More

JATC Training

In this section of the site you can find a great deal of information regarding our upcoming Formal classes for members and apprentices as well as information on how to join the Apprenticeship.

Read More

NASI Benefits

NASI Pension and Health Care benefits service over 20,000 active and retired sprinkler fitters and families. The NEW NASI Personal Health Management Program is voluntary, free, and confidential.

Read More


If you're looking for a Sprinkler Fitters Local 669 contractor, please visit our contractors page. If you need assistance to find the contractor best suited for your next project please contact us.

Read More

COVID-19 Coronavirus Information

In an effort to make you aware of all current COVID-19 news we've created a centralized dedicated web page to house all information related to the outbreak.