Completion Doszier LLC

We Are the Solution For All your Design and Construction Needs

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About the firm

Completion Doszier LLC provides specialized construction project completion management, quality control, budget control, and turnover documentation, with extensive experience in international oil and gas refinery construction. Established to simplify complex construction and operational workflows, the practice supports clients from the conceptual phase of a project through closeout and handover. It delivers solutions including quality and system dossiers, construction drawings (P&IDs), Lean methodology, and comprehensive site auditing.

Firm type
Industrial Engineering

Credentials

Lean Construction - Trained · Quality Assurance - Trained

People

Sean WalkerCEO/Director

Heather Smith-WalkerPresident/Director

Capabilities

Quality Control

Service website

Verification systems, waste reduction strategies, and systematic assessments to maintain project standards and efficiency throughout construction.

  • ITP Quality Control Forms

    Inspection and Test Plan (ITP) templates and documents customized for specific construction needs.

  • Preservation Forms

    Equipment preservation templates to properly manage and protect installed project assets.

  • Sigma Lean Methodology

    Efficiency methodologies and waste reduction strategies employed to streamline project execution.

  • Site Auditing

    Field assessments and layout reviews to identify the most efficient path to project completion.

Budget Control

Service website

Financial alignment services covering deep budget analysis and tailored implementation strategies to maximize value and minimize resource waste.

  • Budget Analysis

    Comprehensive spending evaluations to optimize the allocation of funds within an active development.

  • Budget Implementation

    Phased strategy integration across engineering, fabrication, commissioning, and completion steps.

Turnover Dossiers

Service website

System and completion documentation management to support seamless handovers and final sign-offs.

  • System Dossiers

    Compilation of technical system boundaries, testing records, and operational readiness documents.

  • Quality Dossiers

    Assembled construction quality records, inspection clearances, and compliance checklists.

  • Completion Documentation

    Handover materials, database punch lists, and mechanical completion sign-offs.

  • Turnover Procedures

    Defined operational transfer sequences and client acceptance protocols.

Construction Project Schedule

Service website

Timeline management and critical path analysis to keep project development aligned with target deadlines.

  • Projected Completion Schedules

    Strategic baseline timelines mapping out critical paths for all development phases.

  • Deadlines Quality Control

    Ongoing monitoring and schedule governance to prevent slippage and manage project handovers.

Construction Drawings and Documentation

Service website

Drafting, detailing, and technical reviews of spatial plans, equipment layouts, and piping designs.

  • Piping and Instrumentation Diagrams

    Detailed schematics illustrating the functional relationship between piping, instrumentation, and system equipment.

Industries

Oil & Gas

Projects

Total Refinery Project

Port Arthur, TX · Oil & Gas · Client: Total

Project details

Construction, maintenance, and operations services supporting refinery completion.

Wood River Refinery Project

Roxana, IL · Oil & Gas · Client: Wood River Refinery

Project details

Refinery construction support and completion services.

Shell Hijua Project

Malaysia · Oil & Gas · Client: Shell

Project details

International energy project support services.

ECA Sempra LNG Project

Mexico · Oil & Gas · Client: Sempra LNG

Project details

Infrastructure and LNG terminal completion support.