Costello Construction

Costello Construction is truly in a league of its own. From the quality of their work to the integrity of their leadership, this company sets the standard for excellence in the construction industry. Every interaction I’ve had with their team has been marked by professionalism, transparency, and a genuine commitment to doing things the right way.

I want to especially recognize David Costello, whose leadership is the heartbeat of this organization. His reputation for integrity, hard work, and hands‑on involvement is well‑earned. You can feel his influence in every project — the craftsmanship, the attention to detail, the pride in the final product. It’s rare… read full review

Costello Construction has been a strong and reliable partner across the projects we’ve completed and been awarded together — including the Chesapeake Analytic Collaborative Building, the North Laurel Swimming Pool Addition, The Heights Building Phase II Parking Garage, the Patrick Henry Library, and the Dewey Beach Police Department.

Their team is smart, professional, and genuinely easy to work with. They take the time to dive into the small details, ensuring every scope item is accurate and well-coordinated before execution. With their years of experience in the industry, they understand the process, communicate clearly, address issues quickly, and treat subcontractors… read full review

Costello is an amazing company to work with as a subcontractor and they do quality work! Looking forward to many more partnership opportunities with Costello