WE BRING INTERNATIONAL CONSTRUCTION EXPERTISE OUR CONSTRUCTION COMPANY IN SEWELL, NJ IS FOUNDED ON THE KNOWLEDGE OF OUR ANCESTORS IN ITALY MJB Custom Concrete, LLC is a construction company in Sewell, NJ with an international legacy. Our family has always provided excellent construction services, even before we immigrated to the United States. Today, we're proud to be part of the local community and love helping out our neighbors. When it comes to outdoor construction, MJB Custom Concrete is an easy choice. Contact us today to schedule an appointment.