NosparoPREFER certifications: a guarantee of quality, safety, and reliability
Since 1941, PREFER has been synonymous with excellence in the design and manufacture of locks, cylinders, and security systems—all “Made in Italy.” Every product is the result of a strictly controlled production process that complies with the highest international quality standards.
Our ISO 9001:2015 certification serves as tangible recognition of our ongoing commitment to superior business process management, customer satisfaction, and total quality.
Being a certified company means more than just adhering to standards and procedures; it means embracing a work philosophy rooted in excellence, transparency, and continuous improvement. It is this approach that allows us to deliver reliable, secure, and high-performance products every single day, tailored to the needs of our customers both in Italy and around the world.
ISO 9001:2015 – our quality standard
ISO 9001:2015 certification is an important milestone for PREFER, confirming the robustness and rigour of our quality management system.
This international standard defines the requirements for a management system designed to ensure that every stage of the production process — from design to dispatch — is planned, monitored and improved over time.
For us, being ISO 9001:2015 certified means:
- Consistent quality control of materials and processes;
- Full traceability of supplies and components;
- Fewer errors and greater production efficiency;
- Customer satisfaction as our highest priority;
- Continuous improvement through the collection and analysis of performance data.
This globally recognised certification further confirms PREFER’s standing as a benchmark for quality and reliability in the locks and security systems industry.
Certified quality, Made in Italy
All PREFER products are designed, developed and manufactured entirely in Italy, in full compliance with European and international regulations. The attention to craftsmanship that has characterised our company since 1941 is seamlessly combined with a modern, certified management system, bringing together tradition, innovation and certified quality. Every lock and cylinder undergoes rigorous strength, durability and security testing, carried out both internally and by accredited external certification bodies. This enables us to deliver products that are reliable, compliant with the relevant standards and built to last.
Quality checks and testing on every product
Quality control is a fundamental part of PREFER’s manufacturing process. Every stage, from machining to final assembly, is monitored by qualified personnel in accordance with documented internal procedures approved under our ISO 9001:2015-certified management system. All products are individually tested to ensure they fully meet security, functionality and performance requirements. This approach ensures consistent quality and a significant reduction in defects, in line with the most stringent international standards.
An integrated system for quality and safety
At PREFER, quality is more than a technical requirement: it is a core company value. Alongside ISO 9001:2015, we therefore implement safety and sustainability procedures that ensure compliance with environmental regulations, protect employees and support energy efficiency across our production facilities. Every department contributes to a continuous improvement process, with the aim of optimising time, costs and performance without ever compromising product quality or end-user safety.
International certifications and compliance
In addition to ISO 9001:2015 certification, PREFER designs and manufactures locks and locking systems that comply with European EN standards and other relevant international security standards. This enables us to export our products to more than 40 countries, ensuring certified compatibility, performance and security. Every PREFER product is supplied with CE declarations of conformity where required and technical documentation, ensuring transparency and traceability throughout the supply chain.
Training and expertise: the foundations of quality
PREFER’s quality is the result of a shared company culture, built through continuous training and investment in people. Every employee actively contributes to maintaining certification standards, with regular updates on ISO procedures, new regulations and the latest manufacturing techniques. In this way, staff expertise becomes a key factor in consistently delivering secure, innovative products that meet regulatory requirements.
Quality with a vision for the future
For PREFER, certification is not the finish line, but a starting point for continuous improvement. Our company continually invests in research, innovation and process digitalisation to deliver increasingly high-performing, sustainable and certified security solutions. For us, quality is a commitment to our customers, the market and the environment: a value that guides every decision, every project and every lock bearing the PREFER name.