GNP Roofing and Siding: A 30-Year Legacy of Excellence For A Long Island Roofing & Siding Contractor. 


For over three decades, GNP Roofing and Siding has been a stalwart in the Long Island construction scene, providing top-notch roofing and siding contractor services. With a commitment to quality, reliability, and customer satisfaction, the company has become a trusted name in Suffolk County and its neighboring towns. In this article, we will explore the history, services, certifications, and customer-centric approach that have fueled GNP Roofing and Siding’s success.

History and Legacy

GNP Roofing and Siding has stood the test of time, evolving to meet the changing needs of homeowners while maintaining a steadfast dedication to craftsmanship. Starting as a local business, the company has grown into a leading contractor on Long Island. The secret to its success lies in its unwavering commitment to excellence and the use of top-quality materials.

Services Offered by GNP Roofing and Siding

GNP Roofing and Siding is a comprehensive service provider, offering expertise in all phases of roofing, siding, and window installations, including repairs. The company’s team of skilled professionals ensures that every project, whether big or small, is executed with precision and care. GNP Roofing and Siding also takes pride in being an Owens Corning certified preferred contractor, underlining its commitment to industry-leading standards.

In addition to its core services, GNP Roofing and Siding is recognized as the premier contractor for Alside vinyl siding. This partnership ensures that homeowners receive top-quality materials that not only enhance the aesthetic appeal of their homes but also provide long-lasting durability.

Emergency Services and Free Estimates

Understanding that roofing issues can arise at any time, GNP Roofing and Siding offers 24-hour emergency services. This commitment to swift response sets them apart in the industry, providing homeowners with peace of mind knowing that help is just a phone call away.

Moreover, GNP Roofing and Siding believes in transparency and customer empowerment. The company offers free, no-obligation estimates, allowing homeowners to make informed decisions about their roofing and siding needs. This commitment to honesty and openness is a cornerstone of GNP Roofing and Siding’s customer-centric approach.

For those in need of immediate assistance or looking to explore their options, GNP Roofing and Siding can be contacted at 516-419-6575 or through their website at

Certifications and Partnerships

As an Owens Corning certified preferred contractor, GNP Roofing and Siding has undergone rigorous training and met stringent criteria to achieve this recognition. This certification ensures that the company consistently delivers high-quality products and craftsmanship, providing homeowners with peace of mind and confidence in their choice of contractor.

Additionally, being the premiere contractor for Alside vinyl siding speaks to GNP Roofing and Siding’s commitment to excellence in both materials and workmanship. This partnership allows homeowners to benefit from the latest innovations in vinyl siding, enhancing the beauty and durability of their homes.

Addressing Common Questions

1. How much does it cost to replace a roof in Long Island?

The cost of replacing a roof in Long Island can vary based on several factors, including the size of the roof, the type of materials used, and the complexity of the project. GNP Roofing and Siding understands that every home is unique, and they provide personalized, free estimates to homeowners. This allows them to assess the specific needs of each project and provide an accurate cost estimate, ensuring transparency and avoiding surprises for the homeowner.

2. How much is a new roof in NY State?

The cost of a new roof in New York State, including Long Island, is influenced by factors such as the type of roofing material, the size of the roof, and any additional features or services required. GNP Roofing and Siding recognizes the importance of budget considerations for homeowners and works closely with them to provide cost-effective solutions without compromising on quality. The company’s free estimates enable homeowners to plan their roofing projects with a clear understanding of the associated costs.

3. How do you know if your roofing contractor is ripping you off?

Unfortunately, roofing scams and unscrupulous contractors exist in the industry, making it crucial for homeowners to be vigilant. GNP Roofing and Siding prioritizes transparency and customer satisfaction, aiming to build trust with every client. To ensure that a roofing contractor is not ripping you off, consider the following:

Certifications: Verify if the contractor holds certifications from reputable organizations. GNP Roofing and Siding’s Owens Corning certification is a testament to their commitment to industry standards.

References: Request and check references from previous clients. GNP Roofing and Siding proudly shares testimonials and reviews from satisfied customers, reflecting their track record of success.

Written Estimates: A trustworthy contractor, like GNP Roofing and Siding, will provide detailed, written estimates that clearly outline the scope of work and associated costs. Avoid contractors who provide vague or verbal estimates.

Communication: Open and honest communication is key. GNP Roofing and Siding believes in keeping clients informed throughout the project, fostering trust and ensuring a positive customer experience.

Emergency Services: A reputable contractor, like GNP Roofing and Siding, offers emergency services, demonstrating a commitment to customer support beyond the initial project.

By addressing these key points, homeowners can navigate the process of hiring a roofing contractor with confidence, knowing that they are making an informed and reliable choice.


GNP Roofing and Siding’s 30-year legacy in Long Island as a Roofing & Siding Contractor is a testament to its unwavering commitment to quality, customer satisfaction, and industry excellence. From roofing and siding to window installations and emergency services, the company has become a one-stop solution for homeowners in Suffolk County and neighboring towns.

As a certified preferred contractor for Owens Corning and the premiere contractor for Alside vinyl siding, GNP Roofing and Siding continues to set industry standards. The company’s dedication to transparency, communication, and top-quality craftsmanship ensures that homeowners receive not only a durable and beautiful home exterior but also a positive and stress-free experience.

For those in need of roofing and siding services or facing emergency issues, GNP Roofing and Siding stands ready to assist. Contact them at 516-419-6575 or click here  for a free, no-obligation estimate. With GNP Roofing and Siding, Long Island homeowners can trust in a contractor that has been a pillar of excellence for over three decades.

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