Crystal Window & Door
Doors & Windows Company in Flushing, NY
For 35 years, we have designed and manufactured custom, high-performance windows and doors that bring architectural concepts to life across residential and large-scale projects. Our vertically integrated process delivers end-to-end quality control and award-winning craftsmanship. We partner with architects, developers, and trades to meet performance, energy, budget, and schedule goals, supported by expert product selection and on-site installation training.
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Mark Lynch
Apr 15, 2025
Crystal Window & Door System did a fantastic job installing my new energy-efficient windows. The crew was detailed and left everything spotless.
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Steve Jackson
Feb 17, 2025
They were by far the most responsive. I got quick quotes and answers to my questions over email. Really good crew - professional, courteous and a true local company experience.
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Clarine Ferrell
Nov 05, 2024
The best company I have ever worked with so far! We replaced our office windows and doors. The two guys were super professional and prompt and executed everything according to plan.
I highly recommend this company.
I highly recommend this company.
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Frances Hohenlohe
Jan 21, 2026
I want to give special praise to Laura Wu in Sales — she has been incredibly helpful to both me and my customers. She genuinely takes the time to understand the needs of each project, explains the options clearly, and focuses on finding the right solution instead of just selling a product. Thank you Laura.
What stands out most about Crystal Windows is how much they truly value customer service.
I highly recommend Crystal Windows to anyone looking for quality products and a team that genuinely supports their clients.
What stands out most about Crystal Windows is how much they truly value customer service.
I highly recommend Crystal Windows to anyone looking for quality products and a team that genuinely supports their clients.
Value for Money
Service & Support
Quality
Location
From Website
Crystal Window & Door
read moreThe new system offers many features that improve order efficiency, accuracy, turnaround and flexibility.
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| Rated 5 of 5 from 4 reviews | |
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