Testing labs in San Fernando

Quality Weld Service (QWS) is a Spanish company headquartered in San Fernando, Cádiz, Andalusia, specialising in quality control, regulatory and industrial inspection, and non-destructive testing (Ensayos No Destructivos, END). Founded to serve the industrial, maritime, and energy sectors, QWS operates under strict professional standards and holds accreditations from leading international classification societies, making it a trusted partner for clients in shipbuilding, offshore, petrochemical, and heavy manufacturing industries across Spain and beyond. The cornerstone of QWS's offer is a comprehensive suite of non-destructive testing (NDT) methods performed by personnel certified to ISO 9712, the international standard for NDT personnel qualification and certification. Techniques available include ultrasonic testing (UT), eddy current testing (corrientes inducidas, ET), liquid penetrant testing (líquidos penetrantes, PT), magnetic particle testing (partículas magnéticas, MT), and thickness measurement (medición de espesores). These methods allow QWS to assess material integrity, detect surface and subsurface discontinuities, and monitor corrosion or wall-loss without damaging the components under examination — critical capabilities in high-stakes industrial settings where structural failure carries severe safety and economic consequences. Beyond standard NDT, QWS provides metallographic studies (estudios metalográficos) and failure analysis (análisis de fallo), enabling root-cause investigation when welds, base metals, or fabricated components exhibit defects or unexpected service behaviour. These analytical services complement the company's inspection work by delivering a scientific account of how and why a material has performed as it has, supporting engineering decisions on repair, replacement, or design modification. Welding-specific services form another major pillar of the QWS portfolio. The company offers welding inspection, consulting, and technical advisory to clients managing fabrication quality in structures, pressure equipment, pipelines, and marine vessels. QWS also conducts welder training, qualification, and certification, issuing welding procedure qualification records (WPQR) and welder performance qualification certificates under multiple recognised codes including ISO, ASME, AWS, and API. This breadth of code coverage allows QWS to serve clients whose projects must meet European, North American, or sector-specific regulatory requirements within a single provider relationship. A distinctive capability of QWS is its ability to perform NDT at height (inspección en altura), working on structures such as wind turbines, towers, masts, and marine superstructures where conventional access is impractical or impossible. The company's technical staff hold certifications from IRATA (Industrial Rope Access Trade Association), ANETVA (the Spanish association for non-powered aerial work platforms), and GWO (Global Wind Organisation), enabling safe and compliant rope-access and elevated-platform NDT inspections. This makes QWS particularly relevant to the wind energy, offshore, and large civil-infrastructure sectors where asset owners need inspection services that can reach every part of a structure regardless of geometry or elevation. QWS is accredited by and works to the requirements of multiple internationally recognised classification societies, including ABS (American Bureau of Shipping), Bureau Veritas (BV), RINA (Registro Italiano Navale), Lloyd's Register (LR), NKK (Nippon Kaiji Kyokai), and DNV GL (Det Norske Veritas – Germanischer Lloyd). These approvals are essential for marine, offshore, and energy clients whose assets must meet flag-state, insurer, or project-owner requirements set by these bodies. All NDT personnel are certified in accordance with ISO 9712, satisfying the mandatory requirements of European Directives governing pressure equipment, lifting equipment, and similar regulated product categories. QWS maintains two principal operational bases in Andalusia: its southern headquarters (Delegación Sur) at Polígono Puente del Hierro, Calle Navío San Juan Nepomuceno, 33, 11100 San Fernando, Cádiz — a location adjacent to the strategic Bay of Cádiz shipbuilding and naval corridor — and a second delegation (Delegación Sevilla) at Parque Comercial San Jerónimo, Calle E, 34, 41015 Sevilla. The company also operates from a facility in Astillero, Cantabria, extending its reach to northern Spain's industrial and shipbuilding hub. QWS emphasises full geographic mobility, deploying inspection teams to client sites anywhere the work is required, supported by EU-co-funded investments through the Andalusia Innovation and Development Agency (Agencia IDEA) and the European Regional Development Fund (FEDER) that have strengthened its industrial facilities and business competitiveness. With its combination of multi-method NDT capability, classification society accreditations, ISO 9712-certified personnel, welding code expertise, rope-access qualifications, and dual-region physical presence, Quality Weld Service is positioned as a full-service quality and inspection partner for industries where material integrity, regulatory compliance, and operational safety are non-negotiable priorities.