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Trusted Engineering Solutions in Smithtown, NY
Petracca Design & Engineering PC works daily to meet the challenging needs of building owners, developers, architects, project managers, and other construction professionals. With partners across multiple states, we manage projects of all scales through every phase, offering a comprehensive approach as a multi-discipline firm. Our services span structural, mechanical, electrical, plumbing, and fire protection engineering, alongside inspections, consultations, and expert witness testimony. We prioritize client collaboration, guiding projects from initial design to completion while addressing issues in existing structures. Our teams expertise includes historic restoration, contamination remediation, and compliance with NYC Special Inspection Agency standards.

Licensed in New York, New Jersey, Connecticut, and Massachusetts, we combine technical precision with a commitment to integrity. Our principal, Thomas J. Petracca, P.E., brings decades of experience and leadership in the engineering profession, supported by certifications in asbestos remediation, commercial pesticide application, and Coast Guard licensing. We pride ourselves on resolving complex challenges and advocating for clients who have faced past construction disputes. Affiliations with the American Society of Civil Engineers, Illuminating Engineering Society, and National Stone Institute underscore our industry credibility. Our goal is to deliver reliable, innovative solutions tailored to each clients unique needs.
Services
Structural Engineering Mechanical HVAC Electrical and Plumbing Fire Protection Expert Witness Testimony Building Restoration Site Planning Construction Administration
Highlights and features
  • We offer multi-discipline engineering services under one dedicated firm.
  • Our team provides expert witness testimony and dispute resolution expertise.
  • Licensed in New York, New Jersey, Connecticut, and Massachusetts for regional expertise.
  • We hold certifications in asbestos remediation and commercial pesticide application.
  • Our principal has decades of experience as a licensed professional engineer.
Associations and certifications
  • NYC Special Inspection Agency
  • NYS Certified Asbestos Remediation Supervisor
  • NYS DEC Certified Commercial Pesticide Technician
  • United States Coast Guard 3rd Assistant Engineers License - Unlimited Tonnage
Services
Structural Engineering
Structural engineering services for new buildings and modifications, including steel, wood, and concrete foundations. We specialize in support of excavation, framing design, and bulkheading solutions for residential and commercial projects. Our expertise ensures structural integrity and compliance with local building codes.
Mechanical HVAC
Design and implementation of conventional and unconventional HVAC systems, including geothermal and solar-powered solutions. Our mechanical engineering team optimizes energy efficiency and climate control for residential, commercial, and institutional buildings.
Fire Protection
Comprehensive fire protection services, including sprinkler systems, alarm installation, and RPZ/DCV valve compliance. We ensure buildings meet fire safety codes through proactive design and inspection, minimizing risks for occupants and property.
Expert Witness Testimony
Expert witness services for construction disputes, including investigations, depositions, and court appearances. Our licensed engineers provide technical analysis and testimony to resolve legal challenges related to building failures or code violations.
Building Restoration
Restoration services for fire, water, and structural damage, including historic building redesign. We assess damage extent, develop repair plans, and oversee remediation to restore functionality and preserve architectural integrity.
People
Thomas J. Petracca
Principal Engineer
Thomas J. Petracca, P.E., is a licensed professional engineer with decades of experience in structural and mechanical engineering. He leads Petracca Design & Engineering PC with a focus on client collaboration and technical excellence.
Stephen J. Pirrelli
Award-Winning Engineer
Stephen J. Pirrelli, PE, is a recognized expert in civil engineering and a past award recipient from the Suffolk County Chapter of NYSSPE. His work emphasizes innovative design and compliance with regulatory standards.
Questions
What engineering services does Petracca Design and Engineering offer?
We provide structural, mechanical, electrical, plumbing, and fire protection engineering, along with inspections, expert witness testimony, and building restoration services.
In which states are you licensed to operate?
We are licensed in New York, New Jersey, Connecticut, and Massachusetts, serving residential and commercial clients across these regions.
Can you assist with historic building restoration projects?
Yes, our team specializes in historic redesign and restoration, addressing fire, water, and structural damage while preserving architectural integrity.
Do you provide expert testimony for construction-related legal cases?
Yes, we offer expert witness services, including investigations, depositions, and court appearances for construction disputes and code violations.
Are your engineers certified in specialized areas?
Our team holds certifications in asbestos remediation, commercial pesticide application, and NYC Special Inspection Agency standards for compliance assurance.