Cosmo Window & Door

A Legacy of Quality and Expertise

Cosmo Window & Door has been a trusted supplier of exceptional doors, windows, and skylights to Long Island, New York, and the surrounding areas for over two decades. Founded on a foundation of deep industry knowledge and unwavering customer service, we have become the go-to source for homeowners, builders, architects, and designers alike.

A Diverse Product Portfolio

At Cosmo Window & Door, we understand that every project is unique, which is why we offer a diverse portfolio of high-quality products to meet your specific needs. Choose from:

Doors

• Interior wood, MDF, and molded composite doors
• Exterior wood, steel, and fiberglass doors
• Custom glass panel doors
• 90-minute fire-rated doors
• Patio and scenic doors

Windows

• Energy-efficient windows in various materials

Skylights

• Beautiful and durable skylights to illuminate your home

Architectural Products

• Columns and posts
• Railing systems
• Mouldings and trim
• Shutters

Passionate Customer Service

Beyond our extensive product offerings, what truly sets us apart is our unwavering commitment to customer service. Our team of experts will guide you through every step of the process, from selecting the right products to installation and beyond.

Here's what sets us apart

• Personalized attention: You will receive dedicated guidance from experienced professionals who understand your unique needs.
• Jobsite visits: Our outside sales representatives will visit your job site to make accurate product recommendations.
• Competitive pricing: We offer competitive prices without compromising quality.
• Unmatched selection: Choose from a wide range of styles, features, and materials to create the perfect look for your project.

Experience the Cosmo Difference

At Cosmo Window & Door, we pride ourselves on exceeding expectations and delivering exceptional value to our customers. Choose us for:

• Unparalleled product quality
• Outstanding customer service
• Competitive pricing
• Seamless product selection and installation

Ready to discuss your project? Contact us today and let our team of experts guide you towards the perfect solution for your home or business.