ADVANCING WITH PURPOSE
About Us
FENSTELA is a pioneer in designing and manufacturing large opening door systems. Dedicated to creating products that open spaces, our focus in developing and refining these products has resulted in the most innovative and comprehensive range of doors and windows available.
FENSTELA offers Folding, Sliding, and Swing door systems that are built using consistent profiles, ensuring a cohesive and elegant look across any project. Designed to complement one another, each system provides flexibility for architects, builders, and homeowners to shape spaces that are both functional and refined. Proudly assembled in Indonesia with precision craftsmanship, FENSTELA products have been featured in a wide range of standout projects—from contemporary homes and commercial spaces to schools and luxury resorts. Our aluminium doors and windows combine engineering excellence with timeless design to deliver lasting performance. With decades of experience and a solid warranty to match, FENSTELA remains the trusted choice for those seeking high-end aesthetics, reliable quality, and seamless integration for every open space.
VISUALLY APPEALING DESIGNS
Every FENSTELA door system—whether Folding, Sliding, or Swing—is designed with a unified approach that balances aesthetics and functionality. We ensure each detail works in harmony, making our doors suitable for a wide range of openings without compromising visual appeal.
COMPREHENSIVE RANGE
FENSTELA offers a complete range of folding, sliding, and swing aluminium doors designed to complement any architectural style. With quality materials and customisable performance, we support residential and commercial projects of all scales.
INNOVATION
FENSTELA designs wide-opening systems that blend aesthetics with performance. From postless corners to integrated door-window solutions and concealed protection, every detail is crafted to deliver elegant and high-performing sliding and folding systems.
Designed for Perfection
We design with intent, creating spaces that inspire, comfort, and connect, enhancing well-being in every moment.
ABOUT COMPANY- NOVEMBER 1, 2024
We changed the brand from WINALUM to FENSTELA.
The name FENSTELA is actually not new to us. It is an identity that we have built since the beginning, known by many architects, contractors, and building owners as a provider of high-quality aluminium doors and windows. Through this name change, we want to reaffirm our position in the industry as a brand that prioritizes luxury design, high performance, and high quality standards.
History of FENSTELA
Founded 40 years ago, FENSTELA began as an aluminium installer and started manufacturing its own products in 2008, setting industry standards.
FENSTELA
Crafting Spaces with Precision and Vision
With over four decades of experience, FENSTELA has grown from a trusted aluminium installer to a leading manufacturer of luxury aluminium doors and windows. We are driven by innovation, precision craftsmanship, and a passion for architectural excellence.
Our products are designed to meet the highest standards of aesthetics and performance — trusted by architects, builders, and homeowners across the country.
Vision and Mission
Vision
To become the best and most trusted manufacturer and applicator of premium aluminum door and window frames in Indonesia.
Mission
Making high quality door and window frame products, and supported by timely and perfect installation according to FENSTELA standards.
Providing reliable, responsive and proactive after-sales service in handling customer complaints.
Continue to innovate in product development and adapt to changing design trends.
QUALITY
Unmatched Product Quality & Value
SUPPORT
Knowledgable Support & Industry Leading Warranty