Dilenza
Welding and coating inspectors supporting an industrial fabrication project

Industrial Inspection Services for Global Projects

Dilenza provides welding, coating and vendor inspection services for industrial fabrication, manufacturing and construction projects worldwide. Support can range from one defined inspection visit to recurring surveillance, resident assignments, shutdown support and multi-site inspection programs.

Our core technical strengths are welding and protective coatings, supported by independent vendor inspection for project-specific manufacturing and supplier requirements. Each assignment is structured around the equipment, technical scope, applicable standards, required inspector qualifications, location and project schedule.

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What do we inspect?

How can inspectors be deployed?

Where and for whom?

  • Welding & coating expertise

    Specialist inspectors selected for the required discipline

  • Flexible project duration

    One day · Several weeks · Multiple years

  • Project-specific profiles

    Qualifications · Standards · Industry · Location · Language

  • Global assignments

    Europe · Middle East · Asia · Africa · Americas

Our approach

Specialist Inspection Built Around the Project

Industrial inspection requirements rarely fit one standard format. One project may need an inspector for a single production milestone; another may need the same professional continuously present at a fabrication facility for twelve months. A shutdown can require intensive coverage for several weeks, while an international manufacturing program may involve different inspectors across several suppliers and countries.

Dilenza structures its services around these realities. We first identify what needs to be inspected, then determine what type of inspector is required, where that professional needs to be present, and how long the assignment should continue.

This allows the inspection model to follow the project rather than forcing the project into a predefined service package.

The right expertise matters. Being present at the right moment matters just as much.

Our inspection services

Our Inspection Services

Specialist inspection services structured around the technical and operational requirements of your project.

Welding Inspection Services

Technical verification before, during and after welding.

Welding quality is influenced before, during and after the weld itself is completed.

Dilenza provides qualified welding inspectors for fabrication, manufacturing, construction, installation, maintenance and repair activities.

Depending on the project scope, welding inspection can include:

  • Welding documentation and procedure review
  • Welder qualification verification
  • Fit-up and joint preparation
  • Welding surveillance
  • Visual welding inspection
  • NDT witnessing
  • Welding repair inspection
  • Final documentation review

Assignments can be organized around a single inspection activity or maintained continuously throughout fabrication or construction. The full scope is described on the welding inspection page.

Explore Welding Inspection Services

Coating Inspection Services

Inspection from surface preparation through final protective coating acceptance.

The performance of a protective coating system depends on the conditions under which the system is prepared and applied.

Dilenza provides qualified coating inspectors to support surface preparation, environmental monitoring, coating application, testing, repairs and final acceptance.

Depending on the project requirements, coating inspection can include:

  • Coating specification review
  • Surface-preparation inspection
  • Environmental-condition monitoring
  • Application surveillance
  • Wet- and dry-film thickness measurement
  • Holiday and adhesion testing
  • Repair inspection
  • Final coating documentation review

Inspectors can support individual coating stages or remain present throughout a complete coating program. The full scope is described on the coating inspection page.

Explore Coating Inspection Services

Vendor Inspection Services

Independent vendor inspection at manufacturers and suppliers.

Independent vendor inspection at manufacturers and suppliers can provide project teams with technical visibility during fabrication, assembly, testing and final verification.

Depending on the controlled project scope, inspection can include documentation and material verification, manufacturing surveillance, welding and coating inspection, dimensional checks, test witnessing, FAT activities, punch-list follow-up and final documentation.

  • Documentation review
  • Material verification
  • Manufacturing surveillance
  • Welding and coating inspection
  • Dimensional checks
  • Test witnessing
  • FAT activities
  • Punch-list follow-up
  • Final release documentation

The scope of vendor inspection is defined by the project's purchase specification, Inspection and Test Plan and contractual requirements. The full scope is described on the vendor inspection page.

Explore Vendor Inspection Services
Specialized services

Specialized Inspection Services

When a project specifies a particular welding code, inspector qualification or client-specific requirement, Dilenza can structure the inspection assignment around that exact scope. Explore specialized inspection services for common project-defined standards, qualifications and client requirements.

Welding Standards

Inspector Qualification-Led Services

Client-Specific Inspection

  • Saudi Aramco QM Inspection

    Project-specific QM inspection support for supplier manufacturing, fabrication, testing and defined inspection activities.

    Explore Saudi Aramco QM Inspection
Assignment models

Inspection Models for Every Project Duration

Our technical disciplines remain focused. The way they are deployed can change according to the project.

  1. One visit
  2. Recurring
  3. Short term
  4. Resident
  5. Multi-year

Inspection coverage adapted to the project—not the other way around.

Resident Inspectors

Continuous technical presence on site

When fabrication, construction or coating activities continue over an extended period, isolated inspection visits may not provide the continuity the project requires.

Dilenza provides resident welding inspectors and resident coating inspectors who can remain at a supplier, fabrication yard, construction site, shipyard or other project location for an agreed period.

Resident assignments may be:

  • Full-time or part-time
  • Project-based
  • Long-term or multi-year
  • Structured around an agreed working schedule

A resident inspector develops familiarity with the project documentation, personnel, production sequence and recurring technical concerns—continuity that isolated visits cannot always achieve.

Explore Resident Inspector Services

One inspection point or an entire project. The standard of diligence remains the same.

Decision guide

How to Choose the Right Inspection Model

The most effective assignment structure depends on how the work is organized.

Choose a Single or Short-Term Inspection When:

  • One specific activity needs verification
  • Only defined ITP points require attendance
  • A temporary technical resource is needed
  • The fabrication period is short

Recommended service

Short-Term Inspection

Choose Recurring Inspection When:

  • Production continues over time
  • Inspection is required at selected milestones
  • Full-time presence would not be necessary

Recommended service

Recurring Inspection

Choose a Resident Inspector When:

  • Welding or coating activities occur continuously
  • Daily technical surveillance is required
  • The same professional should follow the work over time

Recommended service

Resident Inspectors

Choose a Rotational Inspector Model When:

  • The project is offshore or remote
  • Working periods are intensive
  • Continuous coverage must be maintained across rotations

Recommended service

Rotational Inspectors

Choose Shutdown Support When:

  • The work must be completed within a defined outage
  • Additional temporary inspection resources are required
  • Extended shifts or intensive schedules are expected

Recommended service

Shutdown Inspection Support

Choose Multi-Site Inspection When:

  • Several suppliers are involved
  • Fabrication is distributed internationally
  • Inspection resources must be coordinated across a supply chain

Recommended service

Multi-Site Inspection
Inspector selection

Inspector Selection Starts With the Scope

A certification title alone does not define whether an inspector is suitable for a project. Before proposing a profile, Dilenza considers the technical and operational factors that shape the assignment.

Technical Discipline

Does the project require:

  • Welding Inspection
  • Coating Inspection
  • Vendor Inspection
  • Multi-Discipline / Project-Specific Inspection

Certification

What certification scheme and level are specified by the client or project? Inspector profiles may include:

  • AWS CWI, CSWIP and IWI welding qualifications
  • AMPP and FROSIO coating qualifications
  • Relevant NDT qualifications
  • Other project-specific competence
Explore Inspector Qualifications

Applicable Standards

The inspector should be familiar with the requirements governing the project, which can include standards and codes from:

  • AWS
  • ASME
  • API
  • ISO
  • EN
  • Client and industry-specific requirements
Explore Welding and Coating Standards

Relevant Technical Experience

Experience is assessed according to the actual work being performed. Examples include:

  • Structural fabrication
  • Pressure equipment and process piping
  • Pipelines and storage tanks
  • Marine and offshore fabrication
  • Wind-energy structures
  • Industrial machinery and heavy fabrication

Project Location

Inspector selection also considers:

  • Country and industrial area
  • Travel, visa and site-access requirements
  • Offshore requirements
  • Local language
  • Mobilization conditions

Assignment Duration

The profile must also fit the schedule.

  • An inspector available for two days may be suitable for a hold point but not for a twelve-month resident assignment
  • For long-term requirements, continuity and expected availability form part of the selection process from the beginning

Language capabilities, reporting expectations and communication responsibilities are also considered before deployment.

Tell Us What Your Project RequiresLearn More About Our Inspector Selection Process
Project lifecycle

Inspection Across the Project Lifecycle

01

Before Work Begins

Early inspection support may include review or verification of relevant:

  • Project specifications and Inspection and Test Plans
  • Welding and coating procedures
  • Welder qualifications
  • Material documentation and traceability
  • Acceptance criteria
  • Reporting requirements

The objective is to establish the conditions against which the work will be inspected.

02

During Fabrication or Construction

Inspectors can remain involved as welding or coating activities progress:

  • Welding: fit-up, joint preparation, welding conditions, parameters
  • Welding: consumables, workmanship, visual inspection, NDT status, repairs
  • Coating: surface preparation, environmental conditions, material verification
  • Coating: application, thickness, testing, repairs

The inspector records activities according to the agreed project scope and reporting process.

03

At Completion

Final-stage support may include:

  • Visual inspection and dimensional checks
  • Final coating verification
  • Test-status review and repair closure
  • Punch-list follow-up
  • Documentation review and final reporting

The exact release or acceptance responsibility must always be defined by the project.

Industries

Industries We Support

Dilenza supports welding, coating and vendor inspection across industrial sectors where fabrication quality, manufacturing control, corrosion protection and reliable technical documentation are critical to project performance.

Oil & Gas

Inspection support for pipelines, terminals, storage facilities, process equipment, fabrication yards and upstream, midstream and downstream projects.

Explore Oil & Gas Inspection

Petrochemical & Chemical

Welding and coating inspectors for process plants, piping, pressure equipment, structural steel, tanks and industrial expansion projects.

Explore Petrochemical Inspection

Rail & Transportation

Inspection professionals for rolling stock, railway components and transport infrastructure.

Explore Rail Inspection
View All Industries
Technical expertise where industrial projects take place

Global Inspection Coverage

Dilenza supports welding, coating and vendor inspection assignments across major industrial and manufacturing regions worldwide. Our geographic structure is organized around six principal regions, with inspector selection based on technical suitability and project location.

Europe

Inspection support across major fabrication, industrial, energy, marine and infrastructure markets.

Explore Europe

Middle East

Welding and coating inspectors for energy, petrochemical, infrastructure, fabrication, marine and industrial projects.

Explore the Middle East

Asia

Inspection coverage across major manufacturing, shipbuilding, energy and industrial locations in East Asia, South Asia and Southeast Asia.

Explore Asia

Africa

Project inspection for energy, mining, infrastructure, marine and industrial assignments.

Explore Africa

North America

Welding and coating inspection support for industrial projects, manufacturers and fabricators in the United States and Canada.

Explore North America

Latin America

Inspection professionals for energy, mining, infrastructure, manufacturing and marine projects across Mexico, Central America and South America.

Explore Latin America
Explore Global Coverage
How it works

The Dilenza Project Process

  1. 01

    Tell Us What the Project Requires

    Provide as much information as available:

    • Project location
    • Service required
    • Industry, asset or equipment
    • Applicable standards and required certification
    • Starting date and assignment duration
    • Language
    • Reporting requirements
  2. 02

    We Define the Inspector Profile

    Dilenza reviews the assignment to establish the technical competence and operational requirements needed.

  3. 03

    Relevant Professionals Are Identified

    Candidate suitability is considered according to:

    • Qualification and standards knowledge
    • Experience and industry background
    • Project type
    • Location and language
    • Availability
  4. 04

    Inspector Profiles Are Presented

    Suitable profiles can be provided for client technical review before the assignment is confirmed.

  5. 05

    Assignment Requirements Are Finalized

    Before deployment, relevant information can be aligned, including:

    • Scope and schedule
    • Project contacts
    • Reporting and documentation
    • Site requirements and mobilization
    • Communication process
  6. 06

    Inspection Begins

    The inspector attends the agreed project location and performs the responsibilities established by the assignment.

  7. 07

    Project Support Continues

    For ongoing assignments, Dilenza remains involved in project communication, schedule changes, assignment extensions and continuity requirements.

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Inspection should produce information the project can use

Reporting and Project Support

Technical inspection is not complete when the physical activity finishes.

The observations must also be communicated clearly.

Depending on the assignment, reporting can include:

  • Daily and inspection visit reports
  • Photographs
  • ITP status, hold-point and witness records
  • Technical observations
  • Nonconformity documentation where assigned
  • Repair follow-up
  • Welding and coating records
  • Punch lists and final summaries
  • Resident-inspector timesheets

Before an assignment begins, Dilenza can align with the client on the expected:

  • Reporting format
  • Frequency
  • Distribution
  • Escalation process
  • Communication method
  • Project system

Where clients already use their own reporting templates or digital platforms, these requirements can be reviewed during project setup.

Learn More About Project Support
Diligence from selection to completion

Why Dilenza

Specialist technical focus

Our core expertise in welding and protective coatings is complemented by project-specific vendor inspection for industrial equipment and supplier manufacturing.

Project-specific inspector selection

The technical scope determines the inspector profile.

Flexible assignment structures

Support can range from one inspection day to several years of continuous project presence.

Client review before deployment

Relevant profiles can be presented for technical assessment before confirmation.

International project coverage

Assignments can be supported across fabrication, construction and industrial locations worldwide.

Confidential project handling

Technical documentation and project information are handled according to the confidentiality requirements of the assignment.

FAQ

Frequently Asked Questions

What inspection services does Dilenza provide?

Dilenza provides welding inspection, protective coating inspection and vendor inspection for industrial projects and manufacturing supply chains. Services can be delivered through individual visits, short-term assignments, recurring surveillance, resident positions, rotational assignments, shutdown support and multi-site programs.

Can Dilenza provide inspectors for only one day?

Yes. Individual inspection visits can be supported when an appropriately qualified inspector is available for the required location and date.

Can we review the inspector before deployment?

Yes. Relevant inspector profiles can be presented for client review before an assignment is confirmed.

Which inspector certifications can be requested?

Requirements depend on the project. Welding profiles may include AWS CWI, CSWIP, IWI and other relevant qualifications. Coating profiles may include AMPP, FROSIO and other applicable certification schemes.

Can an inspector work according to our ITP?

Yes. The applicable ITP, scope, project specification and reporting process should be provided during assignment setup so the inspector's responsibilities can be aligned accordingly.

Does Dilenza perform NDT?

Dilenza's core services are welding and coating inspection. Where the welding inspection scope includes NDT activities, the welding inspector may witness specified testing, verify status or review reports as defined by the project. Execution of NDT methods must be performed by appropriately qualified personnel according to the applicable requirements.

Can Dilenza support shutdown projects?

Yes. Welding and coating inspectors can support defined shutdown and turnaround periods according to the required scope, schedule, shift pattern and project location.

What information should we provide when requesting an inspector?

Ideally provide project location, technical discipline, industry, equipment or structure, required certification, applicable code or standard, inspection scope, start date, duration, working schedule, language and reporting requirements. Providing detailed technical information makes inspector selection more precise.

Request

Request an Inspector

Start with the project requirements

Tell us where the project is located, what needs to be inspected, which qualifications are required and how long inspection support will be needed.

Dilenza will review the requirement and determine the most appropriate inspector profile and assignment model.

Optional: scope of work, ITP, specification or inspector requirement.

Project information is reviewed confidentially and used only to assess your inspection requirement.

Diligence where your project needs it. Welding and coating inspection for one critical moment—or every day of the project.

Ready to define your inspection requirement?

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