Ready to Start Your Window Project?
Tell us a little about your project and our window specialists will help you find the right solution for your home.
About Us
NSE Windows is a family-owned window and door company committed to quality products, professional craftsmanship, and personal service.
Our experienced team takes the time to understand your home, architectural style, performance needs, and design preferences. We help simplify the window and door selection process so you can make informed decisions with confidence.
From replacement projects and renovations to new construction, NSE Windows provides expert support from the first conversation through final installation.
Visit Our Showrooms
Experience premium windows and doors in person at an NSE Windows showroom.
Explore different window styles, door configurations, materials, finishes, hardware, and design options while speaking directly with our knowledgeable team.
Visit us at one of our New York locations in Massapequa, Hauppauge, or Water Mill to find the right solutions for your project.
Free Consultations
Every home and project has different requirements. Our free consultation gives you the opportunity to discuss your goals with an experienced window and door professional.
We can review your project requirements, discuss suitable products and design options, take necessary measurements, and help you understand the next steps.
Our focus is on providing clear information and practical recommendations so you can choose windows and doors that fit your home, style, and budget.
Certified Installations
Quality products deserve professional installation.
As a Marvin Certified Installing Retailer, NSE Windows provides installation services focused on proper fit, performance, and attention to detail.
Our team carefully manages each stage of the installation process, from preparation and measurements to installation, adjustment, cleanup, and final inspection.
Quality Assurance Program
Our commitment to quality continues throughout your project.
The NSE Windows Quality Assurance Program provides additional oversight to help ensure installation details meet project and product requirements.
Our technical team can review jobsite conditions, document installation details, identify potential concerns, and help coordinate corrective action when necessary.
After installation, our in-house service team remains available to assist with future service needs.
Windows and Doors Built For How You Live
Marvin Windows and Doors, established in 1912 as a family-owned business, is renowned for crafting superior quality windows and doors that enhance indoor living experiences. With a commitment to innovation and customer satisfaction, Marvin offers a diverse range of products designed to elevate both aesthetics and functionality in residential and commercial spaces.
The Marvin Collection
Explore the NSE Windows Portfolio
See how premium windows and doors can transform residential spaces.
Explore completed NSE Windows projects featuring a range of architectural styles, window configurations, door systems, finishes, and design solutions.
Use our portfolio for inspiration and see how thoughtful product selection and professional installation come together in real homes.
