United Glass Metal Yapi is a leading global contractor with over 40 years of experience, specializing in the design, engineer ... ing, manufacturing and marketing of custom window glazing systems. Since our inception, our goal has remained the same - to combine premium materials, quality craftsmanship and industry experience to produce exceptional results. We have always prided ourselves in establishing successful and lasting relationships with our clients based on the principles of old-fashion entrepreneurial virtues such as honesty, loyalty and integrity. Over the past four decades, our company has successfully completed thousands of projects and has earned respect and recognition from the construction industry leaders. read more