Established in 2014, Grandex Door Solutions Co., Ltd. is a premier manufacturer operating from a modern 35,000 m² facility. With 16 years of industry expertise, we specialize in high-performance casement windows tailored for the unique tropical climate of Sri Lanka. Our global reach extends to over 1,200 supply chain partners, ensuring that our architectural solutions meet international quality standards while catering to the specific needs of residential and commercial developments.
Sri Lanka's construction industry is experiencing a paradigm shift towards sustainable, energy-efficient fenestration. Our Casement Window solutions are engineered to withstand high humidity, saline environments, and intense UV exposure, common across Colombo and Southern coastal belts. By integrating advanced CNC precision into our manufacturing, we provide superior weather sealing and thermal insulation, setting new benchmarks for the local market.
With an active R&D division of 85 specialized engineers, Grandex leads the way in innovation. We don't just manufacture windows; we design longevity. Our 45-member QA team ensures every profile complies with ISO 9001 standards, offering custom solutions for glass thickness, security locking mechanisms, and hurricane-resistant frames essential for modern tropical living.
Grandex Door