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Welding Certification

& Third-Party Inspection
for Teesside

Teesside is where the UK's energy transition is being built at scale — and where the standard of weld integrity has to match the stakes. NECIT provides UKAS-accredited welding certification and coded welder testing, non-destructive testing, and third-party inspection across the Tees Valley's process, petrochemical, steel and offshore-wind supply chains.


When what is built must not fail, Teesside's fabricators and contractors turn to an authority that governs the standard — not one that simply checks a box.


NECIT is based in Belmont Industrial Estate, Durham, and our inspectors and assessors work on-site across Teesside and the wider Tees Valley as a matter of routine. We're not a local shopfront; we're the certification body fabricators and contractors call in because the work here demands it.

Local Sectors

Renewables & Clean Energy


From the South Tees Freeport to the offshore wind supply hub in Redcar, clean energy projects demand flawless quality assurance. We help you scale to meet the unprecedented pace of the region’s hydrogen and CCUS cluster.


  • Right-First-Time WPQR: Secure accredited weld procedure qualifications and independent witness testing from the outset—eliminating costly design review retrofits.
  • EN 1090 Compliance: Meet non-negotiable Execution Class standards required to supply structural steel for major offshore wind towers and substructures.
  • Capacity on Demand: Access certified inspection capacity and coded welder validation to keep pace with rapid regional scaling.

Oil & Gas


In Teesside's world-class chemical and petrochemical hubs, safety and operational uptime are directly linked to asset integrity.


  • Safety-Critical Inspection: Comprehensive third-party oversight tailored to high-pressure systems and complex pipework networks.
  • Advanced NDT & Auditing: Rigorous Non-Destructive Testing to mitigate risk, guarantee compliance, and protect your license to operate.

Working on an engineering project? Talk to NECIT.

Our senior inspectors are available to discuss your requirements, mobilisation timelines, and applicable standards.

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Local Services

To secure a place on major supply chain frameworks for Teesworks, Net Zero Teesside, and the offshore wind sector, compliance cannot be an afterthought. As a UKAS-accredited Type A Inspection Body and an appointed Recognised Third Party Organisation (RTPO), NECIT Services provides targeted, heavy-engineering compliance solutions delivered right across the Teesside region.


Coded Welder Testing & Welder Qualification (EN ISO 9606 / ASME IX)


As regional projects scale at an unprecedented pace, local fabricators must quickly deploy certified personnel without risking weld failures.


  • International Standards: We witness and certify welder performance testing to EN ISO 9606 (for steels and specialised alloys) and ASME Section IX (for high-pressure systems).
  • Independent Integrity: Conducted under our ISO/IEC 17024 personnel certification scheme, ensuring full traceability and third-party verification that satisfies stringent Tier 1 operator audits.
  • Prolongation & Revalidation: We manage the 6-month and 2-year prolongation processes to ensure your workforce remains continuously compliant without operational downtime.

WPQR Development & Qualification


Clean energy manufacturing, hydrogen infrastructure, and carbon capture networks require "right-first-time" welding protocols before fabrication begins.


  • Full Lifecycle Oversight: We support you from the initial creation of Preliminary Welding Procedure Specifications (pWPS) through to final certification.
  • Calibrated Parameter Verification: Our field examiners use UKAS-calibrated instruments on-site to independently monitor and record voltage, amperage, travel speeds, and preheat/interpass temperatures.
  • PESR Compliance: Our RTPO status allows us to issue the certified Welding Procedure Qualification Records (WPQR) legally required for pressure equipment handling gases and fluids above 0.5 bar.

Third-Party Witnessed Inspection for Fabricators & Contractors


  • The Buyer’s Eyes & Ears: We act as an objective, independent barrier against quality drift. We witness critical hold-points, material trace reviews, and joint fit-ups directly on the shop floor or site.
  • Contract Security: Having a Type A independent body witness your fabrication gives project developers the ultimate assurance required to sign off on major structural and mechanical handovers.

Non-Destructive Testing (NDT) Engineering


Protecting safety-critical pressure systems in Billingham or heavy structural frames in Redcar requires a multi-discipline approach to defect detection. We coordinate and review a complete suite of NDT methods:


  • Ultrasonic Testing (UT & Shearwave): Utilising sound wave frequencies to map internal volumetric discontinuities in thick-plate steel and heavy structural components.
  • Radiographic Testing (RT): High-clarity internal imaging tailored for volumetric inspection of critical pipework welds and pressure vessels.
  • Magnetic Particle (MT) & Liquid Penetrant (PT): Rapid, high-contrast surface flaw testing to catch surface cracking or porosity before components are coated or shipped.

EN 1090 & EN 15085 Compliance Verification


Failing to meet execution class standards means being legally barred from supplying structural components to major UK infrastructure projects.


  • EN 1090 (Structural Steel): We audit and verify your Factory Production Control (FPC) systems, ensuring your workshop meets the strict Execution Class (EXC1 to EXC4) demands required for offshore wind turbine towers, substructures, and heavy civil engineering.
  • EN 15085 (Railway & Transport Infrastructure): For Teesside fabricators branching into the rail supply chain, we provide technical verification and auditing for the welding of railway vehicles, components, and heavy freight assemblies.
  • Responsible Welding Coordinator (RWC) Support: Access certified RWC consultancy to bridge gaps in your internal quality management systems (including ISO 3834) before formal audits take place.

We bridge the gap between heavy engineering tradition and next-generation energy standards. Whether you are fabricating offshore structures in Redcar or maintaining pressure systems in Billingham, NECIT ensures your project complies, scales, and delivers.

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