516-908-8005
Google reviews that we have
Rating
4.9
649 reviews
Photo of Anne Puliafico
Anne Puliafico
A window which has been fixed by Prestige 2 years ago, would not stay opened. Within a few days Andr...
A window which has been fixed by Prestige 2 years ago, would not stay opened. Within a few days Andrey came, and made an adjustment, without a charge. The problem was fixed.
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Leigh Bradley
When they installed the new glass they left the old one behind leaned against a wall - unbeknownst t...
When they installed the new glass they left the old one behind leaned against a wall - unbeknownst to me. It fell over and shattered all over my patio cutting my dogs paw. Furthermore, two years later the seal has failed on the glass. Avoid this business.
UPDATE 10/29/26 - The owner reached out to me right after reading my review. He replaced the window and apologized for his employee leaving the window behind last time. In his defense, I never contacted him to report the issue when it happened two years ago. Happy with his prompt response and fix.
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Eric Ortiz
Great experience! They were extremely responsive and came out very quickly. I explained the urgency ...
Great experience! They were extremely responsive and came out very quickly. I explained the urgency of getting my window replaced, and he showed up with his team and took care of everything right away. The job was completed before I even finished a work call!

Fast, professional, and reliable. Highly recommended, and I would definitely call them again.
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Niketa Major
Awesome service
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Stan Bujacich
Excellent work. Very neat , fast. And the workers were very courteous . Outstanding!
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Photo of Frank Dell'Aglio
Frank Dell'Aglio
Had window sills replaced as well as the bottom of my slider replaced which had rotted away after fo...
Had window sills replaced as well as the bottom of my slider replaced which had rotted away after forty years. The work was completed just before the nor’easter and they came through with flying colors! They look just like our other window sills which did not require replacement and our slider works like new and all for a fraction of the price to replace. Very pleased with the work done!
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Shane Darby
They did an amazing job restoring and rebuilding old rotted sunroom windows! Would highly recommend ...
They did an amazing job restoring and rebuilding old rotted sunroom windows! Would highly recommend them.
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Ron Jones
Great job! Installer arrived on time, finished within time alloted. I will call Prestige Window Work...
Great job! Installer arrived on time, finished within time alloted. I will call Prestige Window Works again when needed.
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Adam L
Prestige did a wonderful job with our special, oversized windows. Showed up as scheduled, technician...
Prestige did a wonderful job with our special, oversized windows. Showed up as scheduled, technicians were super nice and polite. Once the job was done, they left the area cleaner then when they showed up. Highly recommend them.
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Ken McNaughton
Very complete and professional service. They did a great job repairing broken bedroom window and sto...
Very complete and professional service. They did a great job repairing broken bedroom window and storm door glass
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4.9
Read our 649 reviews

Nassau · Suffolk · North & South Fork

Gretsch-Unitas Group Installation & Repair Service

Free on-site estimate. Licensed and insured in Nassau and Suffolk, with offices in Manhasset and Hauppauge.

4.9 from 649+ Google reviews · The office replies the same day

Gretsch-Unitas Group Installation & Repair Service: Elevating Window and Door Hardware

Introducing the Gretsch-Unitas Group, offering comprehensive solutions for window and door technology that combines innovation with functionality. Their products are meticulously designed to enhance both the security and aesthetics of buildings. As durable as they are, consistent operation and environmental challenges can affect their performance over time. If any components from the Gretsch-Unitas Group begin to show signs of wear or malfunction, it’s crucial to handle these issues immediately. By utilizing their specialized repair and maintenance services, you can ensure that your installations remain in top condition, securing your premises while keeping them looking great.

Prestige Window Works – Repair and Installation is delighted to collaborate with the Gretsch-Unitas Group, a global leader renowned for its advanced hardware solutions for windows and doors. The GU Group’s commitment to excellence is showcased through its range of architectural hardware, locks, and locking and access control systems under the esteemed brands of GU, BKS, and FERCO. This collaboration enables us to bring tailored, high-quality hardware solutions directly to your windows and doors, ensuring unparalleled security, accessibility, and ease of use.

The Gretsch-Unitas Group’s comprehensive product line is designed to meet a diverse array of needs, from burglar-inhibiting windows and doors to barrier-free constructions, ensuring that every project can benefit from the highest standards of safety and design. Specializing in hardware for doors in escape and rescue routes, as well as individual facade solutions, the GU Group offers an integrated approach to secure and efficient building management.

At Prestige Window Works, we are proud to install and service the Gretsch-Unitas Group’s hardware solutions, embodying our mutual dedication to “Securing technology for you.” Our team is proficient in integrating these sophisticated systems into any setting, whether it’s a new construction project or an upgrade to existing structures. With a focus on innovation and quality, we ensure that each installation of GU Group hardware enhances the functionality and security of your property.

Opting for Prestige Window Works for your installation and service needs means choosing a partner that understands the importance of detail and quality. Our expertise in the specific requirements of the Gretsch-Unitas Group’s hardware solutions for windows and doors allows us to offer services that not only meet but exceed your expectations.

Let Prestige Window Works – Repair and Installation transform your space with the advanced window and door hardware solutions from the Gretsch-Unitas Group. Contact us to discover how we can elevate the security, functionality, and aesthetics of your property with our expert installation and service.

Get a free quote
4.9★649+ Google reviews
A+BBB accredited
LicensedNassau & Suffolk, fully insured
5 & 10 yrwarranties on wood and glass units

4.9 stars from 649+ Google reviews

What homeowners say

★★★★★
The technician that came was amazing! Friendly, respectful and responsive. I appreciate their work and I definitely recommend Prestige to anyone who needs windows and doors repaired!!!!
Will Price
★★★★★
I just had work done on my windows. I am very happy with the results. I would highly recommend this company.
James Hart
★★★★★
The service was amazing…my door was closing hard basically slamming every time we opened it…they made it to where it doesn’t slams anymore!!!
Jamie Cannon
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