Sprinkler Fitters Local Union 550

May Day Building Trades Rally happening on Friday, 5/1 at 100 Federal St from 11-1. If you are working in that area come support the building trades workers and our community

550 Poker Tourney fundraiser to support the softball teams trip to the annual UA Softball Tourney. Hope to see you there

Many of us worked with Jack Rioux before he decided to withdraw in good standing to pursue a different career as an outdoors enthusiast. Jacks fighting brain cancer and his family started this GoFundMe to raise funds to help him in his fight. Anything you can give is appreciated.

Donate to Help Jackie "Buck" Rioux Fight Glioblastoma, organized by Jaime MacKenzie Our family’s world changed overnight February 9th, 2026 when my little bro… Jaime MacKenzie needs your support for Help Jackie "Buck" Rioux Fight Glioblastoma

It is Women in Construction week!! Let’s celebrate all of our hard working women in Local 550!! Keep up the great work ladies!!

SAVE THE DATE!!! Local 550 Family Day at Fenway Park, Saturday 5/2. Red Sox vs Astro’s at 4:10pm. More details to follow soon

More 550 Christmas photos.

Merry Christmas

Local 550’s Annual Christmas Party was a great time. We hope everyone enjoyed the afternoon together. Lots a great conversation and smiling faces!! Merry Christmas and Happy New Year to all of our Unions members.

Local 550’s Annual Christmas Party was a great time. We hope everyone enjoyed the afternoon together. Lots a great conversation and smiling faces!! Merry Christmas and Happy New Year to all of our Unions members.

Great story of an incredible organization, Baking Memories 4 Kids, which gifts familes with critically ill children a trip to Disney while also connecting them with something they love. In this story Brother Kyle McCarthys son, Conor was given the opportunity to meet the team he loves, the Boston Bruins!! We will be strongly considering donating the proceeds of our 2026 golf
tourney to this great organization so they can continue to help families with critically ill children realize a dream and while also getting to take a trip to Disney.

5 for Good: Bruins, Baking Memories 4 Kids make dream come true for local family There is something about the movement and action of hockey that thrills Conor McCarthy.

We celebrated a great group of 550 retired members at todays annual Retiree Luncheon. Always great to catch up with the men and women that paved the path for our Union. We recognized several members with their 60 year pins all the way down to 25 year pins. Always a great day!!