John J. Brennan Construction

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John J. Brennan Construction Full range of construction services incl: site development, utility construction, aggregate material management, paving and trucking services.

More than 120 years of continuous operations, Brennan has the capacity to meet your major construction needs.

09/22/2026

Yesterday was a beautiful day by the water in Stratford, CT. There’s no better view for installing vinyl sheeting!

Come see us this weekend at the Huntington Fire Co. 3 touch a truck in Shelton CT. Held at the community center at 41 Ch...
09/11/2026

Come see us this weekend at the Huntington Fire Co. 3 touch a truck in Shelton CT. Held at the community center at 41 Church st from 1:00pm -4:00pm

Thank you for all of your help this week with the seamless raising of a structure in Stratford, CT
08/20/2026

Thank you for all of your help this week with the seamless raising of a structure in Stratford, CT

The Brennan team had an amazing experience at 2026.
03/10/2026

The Brennan team had an amazing experience at 2026.

Celebrating Women in Construction Week 👷‍♀️ This week we’re proud to recognize the talented women who help build stronge...
03/06/2026

Celebrating Women in Construction Week 👷‍♀️

This week we’re proud to recognize the talented women who help build stronger communities every day.
Meet Iris DeJesus, Project Manager at John J. Brennan Construction.

“Working in construction has shown me that strength isn’t just about the work we do in the field—it’s about teamwork, problem-solving, and supporting each other every day. I love being part of Brennan because it truly feels like a family. Everyone works hard, takes pride in what we do, and lifts each other up. It’s rewarding to know that the work we do together makes a real difference in our communities.”

Iris represents the integrity, pride, and versatility that drive our projects forward. We’re grateful to have her on the Brennan team and proud to celebrate her contributions during Women in Construction Week.

Here’s to the women who are helping shape the future of our industry. 👏


🎄Merry Christmas and Happy Holidays! Thanks for helping us build another great year—with Integrity, Pride and Versatilit...
12/25/2025

🎄Merry Christmas and Happy Holidays! Thanks for helping us build another great year—with Integrity, Pride and Versatility.

May your coffee be hot, your boots stay dry, and that the only heavy lifting you do this week is moving presents under the tree.💛

A week after the CCIA Annual Meeting & Holiday Reception, we’re still energized by the connections made, conversations h...
12/10/2025

A week after the CCIA Annual Meeting & Holiday Reception, we’re still energized by the connections made, conversations had, and the momentum for 2026.

Thank you to everyone who joined us — clients, partners, colleagues from across the region, and fellow award winners. It was a privilege to connect and collaborate with so many dedicated pros.

John J. Brennan Construction was honored to receive both the Safety Recognition Award and the Community Service Award this year. These recognitions mean a lot to us because they reflect two values we hold at the core of our company: protecting our people and giving back to the communities we serve.

Our team is still riding high from a night of great conversations, shared goals, and industry camaraderie.
⭐Here’s to building a stronger Connecticut — together.




Address

70 Platt Road
Shelton, CT
06484

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm

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