What We Do

 

Pre-Construction

Pre-Construction is vital to the overall success of a project. At GDO, our staff takes the utmost care during the initial phases of a project. We have constantly innovated over time, and our team is equipped to develop and implement 3D Modeling and BIM into your projects! We also offer the following pre-construction services:

Design Assist

  • Attend Pre-Construction meetings

  • Constructibility Input

  • Building Logistics

Sketching

  • Existing condition models

  • 3D Laser Scanning

  • Coordinated Shop Drawings with Design

Scheduling

  • Anticipated Durations

  • Project Phasing

  • Identify Long Lead Items

  • Identify Key Milestones

  • Projected Funding Schedule

Estimating

  • Budgeting

  • Value Engineering (VE)

Off-Site Construction

GDO properly staffs all of our projects to your needs. We will gladly provide our clients the following off-site personnel:

  • Management

    • Project Executive

    • Project Estimator

    • Project Accountant

    • Project Administrative Assistant

  • Procurement

    • Warehouse to stock and store equipment / material

    • Union Trucks and Drivers to deliver to site

  • BIM Modeling 3D

 

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On-Site Construction

Our on-site staff handles each project efficiently, diligently, and most importantly, safely. Our on site management consists of:

  • Project Manager

  • Project Superintendent

  • Project Foreman

We are a union shop, and utilize the following workforces:

  • Local 638 Steam-Fitters

  • Local 638 Service Mechanics

  • Local 21 Steam-Fitters

  • Competent and Qualified Sub-Contractor(s)

    • Our subcontractors have been long term business partners with GDO and are tailored to project specific qualifications, and maintain GDO’s qualifications, expertise, and experience.

Safety is GDO’s top priority for our on-site staff. All of GDO’s field Management is SST certified and complies with all OSHA & NYC Building Department Safety Regulations.

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BIM Modeling

3D
Sketching

  • Existing Condition Models

    • Laser Scanning

  • Animations, Renderings, Walkthroughs

  • BIM Driven Prefabrication

  • Laser Accurate BIM Driven Field Layout

4D
Scheduling

  • Project Phasing Simulations

  • Lean Scheduling

    • Last Planner

    • Just in Time (JIT) Equipment Deliveries

    • Detailed Simulation Installation

  • Visual Validation for Payment Approval

5D
Estimating

  • Cost Planning

  • Quantity Extraction to Support Detailed Cost Estimates

  • Verification from Fabrication Models

    • Wet Side

    • Air Side

  • Value Engineering

    • “What if” scenarios

    • Quantity Extractions

  • Prefabrication Solutions

    • Mechanical systems

    • Equipment Rooms