STAC, a Spanish company with more than 25 years of experience, is recognized not only as a manufacturer of high-quality components for window and door systems, but increasingly as a strategic technical partner for system houses and manufacturers worldwide.
In addition to its extensive product portfolio, STAC offers a wide range of engineering, consulting, and support services designed to accompany clients throughout the entire lifecycle of a project – from concept to implementation and after-sales support.
Engineering-driven development and customized solutions
All STAC components are designed in-house, enabling the company to develop tailor-made solutions that respond precisely to the technical, functional, and market-specific requirements of its customers. The company’s technical department provides advanced engineering services, including:
» 3D design and prototyping, allowing clients to visualize and validate solutions before production,
» Design and manufacture of molds and tooling, ensuring high precision and consistency in production,
» Development of extrusion dies for profiles and gaskets, giving STAC full control over quality, performance, and lead times.
This integrated approach allows STAC to actively participate in the development of new systems and contribute to their technical optimization.
Material expertise and technical consultancy
STAC’s service offering is reinforced by extensive know-how in materials engineering. The company works with metals, thermoplastics, and technical polymers such as PA66, as well as steel and advanced composite materials. Through material consultancy, STAC supports its partners in selecting the most suitable materials based on mechanical performance, durability, thermal behavior, and sustainability requirements, helping to optimize both product performance and production efficiency.
After-sales service and on-site technical support
STAC’s role does not end with product delivery. The company provides comprehensive after-sales support, including detailed technical documentation, customized configurations, and on-site assistance during installation and system implementation. Dedicated technical teams support customers directly at their production facilities or construction sites, ensuring smooth integration of STAC solutions and helping resolve technical challenges in real operating conditions.
A long-term partner for system development
By combining product innovation with engineering services, consultancy, and hands-on technical support, STAC positions itself as a long-term development partner rather than a conventional supplier. Its services are designed to support customers at every stage of a project – from early concept development and system design to production, installation, and optimization.
This holistic approach enables STAC to help its partners improve system performance, streamline manufacturing processes, and strengthen their competitiveness in increasingly demanding international markets. As a result, STAC is widely regarded as a reliable and forward-looking partner in the global window and door industry.
