About Costello Dismantling
Build for Precision. Backed by Expertise.
At Costello Dismantling, we manage highly specialized projects that require precision, discipline, and technical expertise. Instead of relying on conventional demolition methods, we provide thoughtful dismantling solutions designed to protect project value, support safety, and promote environmentally responsible recycling.
Our mission is to lead the industry through innovation, safety, integrity, and respect for our employees, clients, and the environment. Through proven salvage and recycling practices, we divert millions of tons of material from the waste stream each year.
The Costello Praying Mantis
With its shear-like form and remarkable precision, the Costello Praying Mantis embodies an ideal approach "think like a mantis - not a wrecking ball."
The Praying Mantis stands as the most effective predator on Earth, capable of dismantling its prey and consuming every part, leaving no trace behind.
We lead the dismantling industry by encouraging innovation, ensuring safety, maintaining integrity, and with respect for people and the environment.
Safety is Central to our Commitment
Safety is our top priority in every aspect of our work. We are committed to reducing risk for our employees and the surrounding environment.
That commitment begins with a philosophy centered on using the right equipment and technology to keep people out of harm's way.
By applying the proper tools, we can greatly reduce - and often eliminate - exposure to hazardous conditions. Safety is the core value behind every work plan, and we continually evaluate and address risks as they arise on the job.
Legacy, Leadership and Expertise
The Costello Dismantling team consists of specialists from diverse fields:
- structural and mechanical engineering
- crane and rigging
- safety and industrial hygiene
- scrap metal management
- building demolition
- material recycling
By combining these skills, we are dedicated to addressing your project requirements. Costello will expertly manage your project, guiding it from the initial planning phase right through to the final cleanup.
Leaders in the Demolition / Dismantling Industry
Dan Costello
Founder & President
Dan has served on national and local boards for leading industry associations, helping to shape the field through his leadership and expertise. He has also contributed to numerous advisory committees focused on demolition practices, safety, and innovation. In recognition of his lasting impact on the industry, Dan was inducted into the Construction & Demolition Recycling Association (CDRA) Hall of Fame in 2022.
Dan is a respected industry voice, contributing his insight to publications and organizations such as the Construction and Demolition Materials Management Regional Summit.
Thomas M. Berenz, PE
Senior Estimator & Project Manager
Tom has been a key part of the Costello team since 1995, bringing decades of experience in project management, estimating, and job costing for complex demolition and environmental projects.
He also works closely with owners and state and local officials during permitting, while overseeing workforce coordination, safety, and OSHA compliance across every job.
Michael Costello
Vice President
Michael has been an integral part of Costello since 2000, bringing a strong foundation in project management and estimating to hundreds of demolition, dismantling, and environmental projects.
Raised in the business and mentored by his father, Dan, he combines hands-on industry knowledge with proven expertise in estimating, bidding, job costing, and project execution.
A Highly Skilled Team Committed to Service and Safety
Karen Aliberti
Assistant Project Manager
Lucas Arloro
Estimator/Project Manager
Tom Barton
Senior Project Manager
Nick Bosia
Accounting Manager
Katie Bradley
Administrative Assistant
Gabe Casado
Environmental General Superintendent
Joan Costello
Corporate Secretary
Nicole Costello
Payroll Manager/HR Specialist
Tina Delfino
Assistant Project Manager/Permit Specialist
Julie Dooley
Office Manager
Hal Monsini
Estimator/Project Manager
Sean Rae
Operations Manager
Dale Randolph
Safety Director
Paul Rowan
Executive General Superintendent
Jaime Santos
Assistant Office Manager
More than 55 Dedicated Dismantling Experts in Field Services
Costello Dismantling's Volvo 700 High Reach Excavator in action was selected as one of the best industry photos of the year by Engineering News Record (ENR) in 2017. Photographer, Stephen SetteDucati
Industry Recognition and Awards
Demolition & Recycling International, World Demolition Awards
2009 Recycling & Environmental, Quaker Fabrics
2011 Recycling & Environmental, Newton North High School
2013 Collaboration Award, Worcester Clock Tower
2014 Urban Demolition Award Runner-Up
National Demolition Association
2012 Environmental Excellence, Newton North High School
2013 Environmental Excellence, Cordage Park
2014 Environmental Excellence, Worcester Clock Tower
2015 Environmental Excellence Award, Dartmouth College Memorial Stadium
2022 Excellence in Demolition, Walnut St. Substation Decommissioning Project



