Dimensional Control Surveying & Design Support for Industrial Facilities
High-accuracy dimensional control surveying and constructability-focused design support for oil & gas operators, EPC firms, and industrial facility owners.
Request Dimensional SupportProviding precision dimensional control for industrial project teams
Pacific West Dimensional LLC bridges the gap between design intent and construction reality. We are a California-based technical services contractor specializing in high-accuracy dimensional control surveying, as-built verification, and constructability-focused engineering support for oil & gas, industrial and government infrastructure facilities.
Founded and led by Donnald A. Maglupay, our company combines 8+ years of specialized dimensional control surveying with 17+ years of mechanical engineering and field experience. We support owners, EPC firms, and engineering teams by delivering reliable field data and construction-ready documentation that prevents costly clashes and rework.
Our field-driven approach ensures fabrication-ready solutions based on actual site conditions, not just design assumptions.
8+ years specialized dimensional control + 17+ years engineering design support
CEO provides direct oversight on every project for quality assurance
Reduces need for scaffolding and high-risk manual measurements
Key advantages that set us apart in dimensional control surveying
Proven expertise supporting multi-million-dollar projects for ExxonMobil, Marathon Petroleum, Dow Chemical, Phillips 66, and government facilities
Leica TS16 Total Station, Automet Software, AutoCAD, and MicroStation expertise for precise dimensional control
Proven ability to prevent costly rework and schedule delays through accurate dimensional control and documentation
Mechanical engineering background combined with field experience bridges design intent with construction reality
Certified for access and safety in industrial environments
Construction Safety
Secure Area Access
Offshore & Onshore
Client Safety Programs
Pacific West Dimensional LLC is committed to maintaining the highest standards of safety, precision, and quality in all industrial environments. Our dimensional control methods are designed to prevent rework, eliminate dimensional risk, and protect critical installation schedules while prioritizing jobsite safety.
Pacific West Dimensional LLC delivers field-validated dimensional certainty to support safe, efficient, and conflict-free installation in high-risk industrial environments including Oil & Gas, Refining, Chemical and Petrochemical, Power Generation, Offshore Facilities, and Government Infrastructure.
Professional qualifications ensuring quality, safety, and compliance
131745898
Small Business
Santa Paula, California, USA
541370 – Surveying and Mapping
Specialized services for industrial and infrastructure projects
Oil & Gas | Refining | Chemical & Petrochemical | Power Generation | Government Infrastructure
Ensuring dimensional accuracy from initial measurement through final installation.
Point cloud scanning provides broad geometry, but can introduce uncertainty at critical interfaces due to:
Our approach focuses on directly measured coordinates at critical connection points, ensuring accuracy where fit-up matters most.
Outcome: Prevented rework and protected outage schedules.
Outcome: Accurate retrofit fabrication with dimensional certainty and first-time fit validation.
Outcome: First-time fit during installation and prevention of field rework.
Outcome: Prevented installation conflicts prior to final bolting and tie-in.
Critical interfaces validation – ensuring all systems align before installation
Ensuring first-time fit by verifying actual field geometry before fabrication and execution.
Available to review upcoming scopes or provide field support
Proven ability to eliminate dimensional risk on multi-million-dollar industrial facilities
Supported offshore and onshore maintenance and modification activities through dimensional control surveys and as-built documentation for platform reactivation projects.
Dimensional Control Surveys, As-Built Documentation, Fabrication Verification
Extensive experience supporting maintenance, modification, fabrication, and pre-turnaround activities for leading industrial operators across the United States.
Marathon Petroleum, Dow Chemical, Phillips 66, Beta Offshore, DCOR, Venoco
Dimensional control surveying and technical design support for government infrastructure facilities including piping modification surveys and structural verification.
Structural Surveys, Piping Verification, As-Built Documentation
Comprehensive dimensional control solutions across multiple sectors
State-of-the-art equipment ensuring millimeter accuracy and efficiency
High-precision robotic total station with 1" angular accuracy and 1.5mm + 2ppm distance measurement for critical dimensional control surveys.
Specialized dimensional control software for processing survey data, generating accurate reports, and creating detailed 3D models.
AutoCAD & MicroStation for 3D modeling, piping isometric creation, as-built documentation, and design verification.
Pacific West Dimensional LLC deploys high-precision robotic dimensional measurement and real-time CAD verification systems to prevent fabrication errors, eliminate dimensional risk, and ensure first-time fit in critical industrial environments.
Statement of Compliance: Pacific West Dimensional LLC provides non-stamped dimensional control surveying and design support services. All engineering deliverables requiring professional seals are performed under the direction of licensed Professional Engineers.
Discuss your dimensional control requirements with our experts
Donnald A. Maglupay, Founder & CEO
25+ years engineering & field experience / Mechanical Engineering Background
donnald.maglupay@
961 Coronado Circle, Santa Paula, CA 93060
DUNS: 131745898
Primary NAICS: 541370 – Surveying and Mapping
Engineering Support: 541330 – Engineering Services
Drafting Support: 541340 – Drafting Services
Website: https://pacificwestdimensional.com
Ready for vendor qualification or need dimensional support?