our products & team

Crystal Windows & Doors Systems, LTD

  Celebrating more than 23 years of operations,  Crystal® Window & Door Systems, offers industry proven quality, with state-of-the-art manufacturing in Queens, New York; Chicago, IL; St. Louis, MO; and Riverside, CA to best serve our customers. The company’s wide array of products offers architectural designers fenestration solutions that enhance green sustainable design initiatives, with high performance, energy efficient Architectural Aluminum and Residential Vinyl Crystal® and Crystal® Energy Star® Certified products. 

Wei Ren, Project Manager

Wei has over 18 years of home renovation experience and has been a Crystal Windows Certified installer for the past 15 years and serviced over 5,000+ home owners in the DMV area.  

Wei is a problem-solver with a bit of background in design as well, not only is he able to complete your windows & doors installations very professionally, he's happy to lend you his 'eye' and experiences as well to help you in the best way that he can!