About the Firm

Mr. Sideris is the President and Managing Principal for the firm.  His involvement begins with the initial client contact and continues into the design development, construction document, and construction administration phases right through project close out.  His primary expertise, including over twenty years of experience, lies in all phases of mechanical engineering and design including storm and sanitary systems; heating, ventilating and air conditioning systems; and fire protection systems.  As a hands-on leader, he is responsible for the coordination of projects and interfaces with the client and other professionals of the design team to ensure the proper preparation of conceptual design schematics and contract documents.  As the managing principal, he is responsible for construction contract administration and liaison with governmental regulatory agencies.

Mr. Kefalas, a licensed Professional Engineer in New York and New Jersey, is Vice President of the firm.  His involvement spans the range of services from initial client contact into design development, construction documents, and construction administration phases, and through project close out.  Possessing over Thirty years of experience, his primary expertise lies in all phases of electrical engineering and design including lighting, power, and fire alarm systems, He is responsible for the coordination of the project, interfacing with the client and other professionals of the design team to ensure the proper preparation of conceptual design schematics and contract documents.

Mr. Todor is responsible for the supervision of the preparation of conceptual design schematics and contract documents.  Mr. Todor specializes in the field of lighting and power system design for residential, commercial, and institutional buildings.  As a Project Manager, he is responsible for coordination of the project and facilitates communication with clients and other professionals of the design team.   Sideris Kefalas team member since 2001.

Mr. Murphy is responsible for the oversight of the preparation of conceptual design schematics and contract documents.  Mr. Murphy specializes in the field of plumbing for residential, commercial, and industrial projects.  As a Project Manager, he is responsible for coordination of the project and communication with the client and other professionals of the design team.  Sideris Kefalas team member since 2002.

Ms. Ustayeva has nearly 40 years’ experience in the field of plumbing design.  Ms. Ustayeva is a specialist in water supply and sewerage.  She is responsible for the preparation of contract drawings and specification documents for both low-rise and high-rise buildings including residential, commercial, and industrial design.  Sideris Kefalas team member since 2001.

Mr. Duong specializes in the field of mechanical for residential, commercial, and industrial projects.  As a Project engineer, he is responsible for HVAC and energy calculations, design drawings and specification, and coordination with other professionals of the design team.  Sideris Kefalas team member since 2025.

Mrs. Sideris oversees all financial activities, including accounting, budgeting, financial reporting, and financial analysis.    She provides leadership in compliance with regulations, managing internal controls, providing insights to improve financial performance, supervising accounting staff, managing relationships with clients, and recommending process improvements as they relate to the financial wellbeing of the firm.

Ms. Pinchiaroli oversees the day-to-day operation of the office, including interacting with clients and vendors.  Managing filings with department of buildings and the FDNY.  Sideris Kefalas team member since 2015.