Preconstuction SErvices 

ZDG believes that all successful projects are founded on early sound decisions which begin during the reconstruction phase. Early on, budgeting, logistics, and scheduling are developed as a base line to guide the entire team during the preconstruction phase and most importantly keep everyone focused on the ultimate goal. 

Our dedicated staff are fully engaged since the beginning with our client and design team in defining the client's objectives. ZDG's project management team has the depth and expertise in providing technical support from site-work, structural engineering, HVAC, electrical, plumbing, and fire protection systems to building enclosures. 

Construction SErvices

Throughout the years ZDG has developed expertise in optimizing coordination between various disciplines to expedite completion and minimize unforeseen field conflicts. From the onset of the design development process, we integrate all the major components. Subcontractors, vendors and manufacturers are coordinated to produce the most reliable and streamlined process, avoiding unnecessary mishaps and inopportune surprises. Our projects are executed with the utmost professionalism and workmanship. 

List of services

Our services are available for all phases of construction and development. The amount of time and effort expended on Preconstruction activities significantly impacts the Construction phase of the project. We also provide Post Construction Services to ensure a systematic turnover of facilities to the occupants. 

Construction Services

  • Procurement of Trade Contractors 
  • Project Administration 
  • Expediting of Material and Equipment
  • Field Supervision
  • Coordination with Government Agencies
  • Administer Safety Programs and Procedures
  • Shop Drawing Review and Coordination
  • Implementation of Quality Control Procedures
  • Coordination with Design Consultants
  • Administering Regular Meetings with Trade Contractors
  • Administering Regular Meetings with Owner and Design Consultants  
  • Preparation of Monthly Progress Reports
  • Maintaining Detailed Cost Reports
  • Maintaining Critical Path Schedules
  • Coordination with Testing Agencies
  • Coordination with Utility Companies 

Post Construction Services

  • Processing Paperwork for Receipt of Certificate of Occupancy
  • Mechanical System Commissioning
  • Cataloguing of As-Built Drawings
  • Coordination of Attic Stock
  • Coordination of Equipment Training
  • Settlement of Trade Contracts
  • Finalization of Lien Waivers and Releases 


Preconstruction Services

  • Preparation of Conceptual Estimates
  • Detailed Budgeting (as design progresses)
  • Site Investigation 
  • Review of As-Built Conditions
  • Coordination of Abatement Programs
  • Constructability Reviews 
  • Value Engineering Reviews
  • Development of Project Execution Plans
  • Development of Trade Contractor Qualifications
  • Bid Document Preparation
  • Procurement of Long Lead Items
  • Development of Mock-up Requirements
  • Establishment of Project Administration Procedures
  • Project Logistics Planning 
  • Identification of Government Agency Requirements
  • Development of Project Phasing
  • Scheduling
  • Development of Special Inspection Requirements
  • Assessment of Availability of Labor and Materials
  • Establish Safety Program
  • Utility Company Requirement 


192 Lexington Ave - 3rd Floor

New York, NY, 10016

United States

(212) 564-4442