Formerly known as Carastro, our renowned services are now part of the nationally recognized BSA brand. Rest assured, our clients and partners will continue to experience the unwavering quality and commitment they've come to expect from the Carastro team. Additionally, they will now have access to the cutting-edge design and technical expertise that BSA is renowned for. Explore the future of architecture, engineering, interior design, and planning at

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Carastro & Associates utilizes Building Information Modeling (BIM) to collaborate with our team and design innovative and resourceful strategies. BIM allows us to design and plan all of our major equipment rooms in three dimensions. BIM helps ensure a trouble-free, smooth installation process, allowing us easily coordinate equipment placement, devices, piping, ductwork, and conduits. With this critical planning tool, we avoid conflicts between trades and are able to ensure architectural elements remain as intended by architects. Our focus on planning and process minimizes construction issues and keeps projects on time and on schedule for our clients.

We utilize Building Information Modeling when providing services like:

  • Mechanical Engineering
  • Electrical Engineering
  • Plumbing Engineering
  • Security System Design
  • Communications System Design
  • Audio-Visual System Design
  • Building Commissioning
  • Energy Modeling, Auditing, Analysis


Project Sample: Polk State College

Original Plant

Updated Plant

Mechanical BIM 3D Imaging


Electrical BIM 3D Imaging