Founded in 1897 as John J. Brennan & Sons – a masonry and concrete placement business. Our founder was John J. Brennan, son of Thomas Brennan of Shelton, Connecticut. The Brennan lineage goes back for generations.

Services include:
– Utility Construction
– Site Development
– Aggregate Products & Recycling
– Drilling & Blasting
– Construction Management
– Paving
– Site Remediation
– Trenchless Technologies
– Trucking

We’ve been serving both the private and public sectors since 1897. We specialize in heavy highway, site work, utility construction, and infrastructure improvements. Power and energy companies, utilities, municipalities and private businesses count on Brennan to deliver technically complex projects under often very challenging conditions. Our ability to think strategically through complex projects, along with the Company’s commitment to safety and quality, are some of the reasons clients repeatedly turn to us. We can be a total turnkey solution – from demolition and earth balancing, to utilities, paving, all project phases to ensure success.

Industry Leadership
Nearly 120 years as general contractors and builders has taught us that customers value three things above all: versatility, experience and integrity. Expect Brennan to deliver on all three for decades to come. In the range of services we offer, the varied customers we serve, and the satisfaction we deliver, we’re poised to continue our leadership for generations.

Management Philosophy

Simply put, we believe the most successful projects provide a mutually beneficial result to all involved. The true team approach we use internally is applied to our customers so that everyone is focused on the same end result. Our day-to-day focus? Production of project assignments, the safety of our employees, customers and the environment, and lastly a fair profit to allow us to sustain and grow the business we care so deeply about.

Operating Philosophy
Our operating philosophy is to utilize our resources to the greatest advantage for the company, the customer and the community. With the accumulated knowledge of our long-term employees, we can suggest improvements and cost-effective strategies for getting the job done.

Communication is Key.
We also continuously look to new technologies to help ensure that all projects are done efficiently and effectively. We value and welcome open lines of communication in all aspects of a project – from the customer to the owners, superintendents, project managers, foremen and laborers, it’s critical that all are working toward the same project goal – a successful completion, on-time, on-budget…or under.