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Business Details
36 Years
experience
Custom Windows & Doors for Every Project
Founded in 1990 with a vision to redefine architectural excellence, Crystal Window & Door Systems has grown from a modest operation in Flushing, Queens, to one of North Americas leading window and door manufacturers. Our vertically integrated manufacturing process ensures end-to-end quality control across our diverse product lines, serving residential and commercial projects nationwide. With five state-of-the-art facilities in New York, Pennsylvania, Illinois, Missouri, and California, we combine 35 years of institutional expertise with cutting-edge innovation to deliver high-performance, energy-efficient solutions.

Our commitment to sustainability drives partnerships with architects and developers to create Energy Star Certified buildings, while our community initiatives reflect our dedication to education and cultural advancement. From custom aluminum and vinyl products to on-site installation training, we empower clients to transform architectural visions into enduring realities.
Services
Vinyl Replacement Windows Aluminum Windows Vinyl Doors Magnus UPVC Passive Windows Custom Window Wall Systems Energy Star Certified Products On-Site Installation Training Sustainable Building Solutions Window Accessories Door Accessories
Details
  • Year established: 1990
Highlights and features
  • 35 years of expertise in high-performance window and door manufacturing.
  • Vertically integrated production ensures end-to-end quality control.
  • Energy-efficient products meet rigorous sustainability standards.
  • On-site training for installation and project-specific customization.
  • Nationwide service with five strategically located manufacturing plants.
Associations and certifications
  • American Institute of Architects (AIA)
  • National Fenestration Rating Council (NFRC)
What people say
Great product and service Upbeat and responsive team Award-winning energy-efficient designs On-site installation training Nationwide distribution network
Services
Vinyl Replacement Windows
Crafted from resilient plastic polymers, vinyl replacement windows offer exceptional energy efficiency, durability, and affordability. Ideal for low-rise buildings, they withstand time and can be customized in any shape or size. Easy installation and cost-effective insulation make them perfect for single-family or multi-family homes.
Aluminum Windows
Renowned for sleek aesthetics and structural resilience, aluminum windows combine lightweight strength with modern elegance. Designed for mid- to high-rise projects, they meet evolving building codes and energy standards while ensuring long-term performance and visual appeal across residential and commercial applications.
Magnus UPVC Passive Windows
Engineered with precision using Unplasticized Polyvinyl Chloride (UPVC), these windows emphasize adaptability, insulation, and energy efficiency. Their superior thermal properties maintain consistent indoor temperatures, minimizing fossil fuel usage for eco-conscious residential and commercial developments.
Vinyl Doors
Crystals vinyl doors feature insulating air barrier technology to reduce HVAC strain, boosting energy efficiency and lowering utility costs. Customizable with architectural transoms and sidelights, they provide durable, low-maintenance solutions for low-to-mid-rise residential projects seeking both functionality and style.
Energy Star Certified Products
Our Energy Star Certified windows and doors meet strict U.S. government efficiency guidelines, reducing energy consumption and utility costs. Designed for sustainable building initiatives, these products support architects and developers in achieving green certifications while maintaining performance and aesthetic flexibility.
Questions
What types of windows and doors does Crystal offer?
Crystal provides vinyl replacement and new construction windows, aluminum windows and doors, Magnus UPVC/passive windows and doors, and custom window wall systems tailored to residential and commercial needs.
Are Crystal’s products energy efficient?
Yes, our windows and doors meet Energy Star standards, featuring advanced insulation and low-E glass to reduce energy consumption and utility costs for sustainable building projects.
Do you offer installation support?
Crystal provides on-site training for proper installation, ensuring optimal performance and longevity of our products, along with technical guidance throughout the project lifecycle.
How can I purchase Crystal products?
Homeowners can locate authorized dealers via our website or toll-free line, while contractors can access our E-Z Crystal platform for quotes, orders, and customer management.
Where are Crystal’s manufacturing facilities located?
We operate five U.S. plants in Flushing, NY; Scranton, PA; Chicago, IL; St. Louis, MO; and Riverside, CA, ensuring nationwide service and quality control.
Does Crystal support sustainable design initiatives?
Yes, we partner with architects and developers to create Energy Star Certified buildings, offering products that minimize carbon footprints while meeting rigorous performance standards.
Reviews (6)
Jenni Naughton
Jun 03, 2019 Report
We got new windows with a contractor, Jim,
Who installed them. We were very happy, until the middle of the winter, 2019, when I noticed the large picture window got a tiny crack in it. I informed my husband that he needed to get that taken care of the next day. Jim was out of town until spring. In the meantime, the crack is spreading across the window, and is causing a draft. And I am concerned.

My husband called again. This time, Jim is having a hard time with his wife on hospice. So again, we wait. Why is no one calling back? It is now almost August and the window is falling apart! Do not ever
Wkgmama
Mar 19, 2019 Report
We decided to get a quote from Crystal Window & Doors after a co-worker referred them. When I contacted them, they asked for the home address and my phone number as they were going to have their salesmen give me a call to book an appointment. After about a week of not receiving a callback, I called them again. The lady who answered the phone was surprised that "Brad" had not called back. She proceeded to text me his number so that I can call him directly. When I called him, he said he was getting ready to call me and arranged an appointment for a Tuesday. On Tuesday, he called
Vanessa G.
Jul 23, 2018 Report
This company deserves 0 stars. My husband and I didnt get a chance to order the windows with them because I was turned off immediately by there service. What happen was I went to the store to obtain a quote and that went smooth with Cristian. Eventually there contractor Brad came out to measure all our windows and told us at our appt that he would get back to us with the price. Our appt was very quick and when I mentioned I wanted my bow window to be "deeper" he said it absolutely could NOT be done because the size of our wall. Well dont be fooled, always get a second opinion because
Lauren C.
Aug 01, 2017 Report
Don't get into business with these people, you will regret it over the long run. We had purchased our windows from them and called them to fix a broken pane. It took 6 weeks before they cut the replacement glass, and now they are saying they won't be able to install the replacement glass for at least 3 weeks - so figure 10 weeks to get the broken glass replaced. What a headache - don't bother.
Mike S.
Jul 04, 2017 Report
July 2017: We ordered 5 more windows from Crystal on our new house in Indiana: a 5-panel casement, a 3-panel casement, a 1-panel casement, and two double hung windows. We ordered their top of the line windows with argon filled glass, and tinted. The 3 and 5 panel casement windows are a beast, made with excellent attention to detail. Maybe the people below ordered the cheap windows from Crystal. However, although we ordered their top of the line, the price beat out Anderson, Precision, Preferred, Clear Guard, and another Indiana company by far. So far we ordered 8 windows from this company
Asia M.
Mar 20, 2017 Report
Stay far away ! Ordered 13 windows . When I met with the salesman William ... I was very clear with my request that i wanted my replacement windows (3rd floor ) to match the remaiding windiws in the building (1st and 2nd floor) . So William "assured " me that if i ordered the white windows , I would not be able to see the white vinyl .... because the window would be capped in brown (like the remainder of the building window) .
13 windows $3,200. --- and this is what i get ....some white windows that are not capped .... throughs off the uniformity of the building . I gave one star because