Business Details
29 Years
experience
Your Trusted Source for Masonry Supplies in Brooklyn
Glenwood Mason Supply has been a trusted provider of masonry materials since 1997, serving homeowners, construction professionals, and design communities across New York City. Our family of companies includes Superior Block Corporation, the only concrete block manufacturer within NYC's five boroughs, and Ferguson Hauling Corporation, which ensures efficient material transportation throughout the tri-state area. We maintain a 12-acre facility stocked with over two million bricks and one million blocks, offering comprehensive solutions for both structural and aesthetic building needs. As a certified Woman-Owned Business Entity (WBE), we support contractors in meeting minority participation requirements while upholding industry-leading standards in innovation and dependability. Our state-of-the-art manufacturing plant produces over 40,000 units daily, featuring fire-resistant, structurally robust, and architecturally distinctive concrete masonry units. We implement rigorous quality control through weekly in-house testing and independent verification by Underwriters Laboratories (U.L.), ensuring compliance with ASTM standards.Our sustainability initiatives include producing 'green' blocks containing 20% post-industrial recycled content and utilizing CarbonCure technology to sequester CO2 in concrete products. Our dedicated team of OSHA-certified professionals and International Brotherhood of Teamsters members prioritizes safety and efficiency in every operation. With strategic locations including the historic Old Dutch Brewery Building, we combine tradition with modern innovation to deliver reliable, high-performance building solutions. Our membership in the New York State Concrete Masonry Association and Concrete Masonry and Hardscaping Association underscores our industry leadership and commitment to excellence.
Services
Blocks
Bricks
Cement
Precast Products
Stucco
Sand & Gravel
Granite
Masonry Anchors
Cavity Insulation
Rainscreen Systems
Details
- Year established: 1997
Highlights and features
- Established in 1997 with continuous industry expertise
- Only NYC-based concrete block manufacturer within five boroughs
- Sustainable production with 20% recycled content blocks
- Weekly in-house quality testing and UL certification
- CarbonCure technology for reduced environmental impact
Associations and certifications
- NYC Woman-Owned Business Entity (WBE)
What people say
Exceptional product quality
Reliable delivery service
Sustainability leadership
Industry expertise
Professional support
Services
Masonry Supply
We provide comprehensive masonry material distribution through our 12-acre Brooklyn facility. Our inventory includes over two million bricks and one million concrete blocks, serving construction professionals and homeowners across the tri-state area. As the exclusive distributor for Superior Block Corporation products, we ensure access to high-quality building materials meeting strict industry specifications.
Concrete Block Manufacturing
Our state-of-the-art manufacturing plant produces over 40,000 concrete masonry units daily. We create standard grey blocks and custom architectural units with fire resistance, structural strength, and aesthetic design features. Our production incorporates sustainable practices including recycled content and carbon sequestration technologies while maintaining rigorous quality control through weekly testing and UL certification.
Material Hauling
Ferguson Hauling Corporation delivers masonry materials throughout NYC and surrounding regions. Our OSHA-certified drivers safely transport materials across congested urban environments using a modern fleet maintained to the highest safety standards. We serve the five boroughs, Long Island, Westchester, New Jersey, and Pennsylvania with reliable logistics solutions.
Sustainable Building Solutions
We lead the industry in sustainable masonry solutions through our Glenwood Green Initiative. Our 'green' blocks contain 20% post-industrial recycled content and incorporate CarbonCure technology for CO2 sequestration. We also utilize Pozzotive, a recycled glass-based cement replacement, reducing environmental impact while maintaining structural integrity and aesthetic quality.
Architectural Support
Our team provides specialized support for architectural projects requiring unique masonry solutions. We offer extended relieving angles, cast stone elements, rainscreen systems, and universal support systems. With expertise in both historic preservation and modern construction, we collaborate with design professionals to achieve aesthetic and functional building requirements.
People
Constance M. Cincotta
President
As President of Glenwood Mason Supply, Constance Cincotta leads the family-owned business with over 30 years of industry experience. She oversees operations across all three companies while maintaining the organization's commitment to quality and sustainability.
Stephen Slofkiss
Vice President of Sales
Stephen Slofkiss manages sales operations for Glenwood Mason Supply, leveraging his extensive knowledge of masonry products and construction requirements to serve clients across the tri-state area.
Daniel Polanco
Plant Manager
Daniel Polanco directs manufacturing operations at Superior Block Corporation, ensuring production of high-quality concrete masonry units while implementing innovative sustainability practices in the Brooklyn facility.
Jeff Hansen
VP of Architectural Sales and Marketing
Jeff Hansen leads architectural sales initiatives, connecting design professionals with Glenwood's comprehensive range of masonry solutions while promoting the company's sustainable building practices.
Questions
What masonry products does Glenwood offer?
We supply bricks, concrete blocks, cement, precast products, stucco, sand/gravel, granite, masonry anchors, cavity insulation, and rainscreen systems.
Do you provide sustainable building materials?
Yes, our 'green' blocks contain 20% recycled content and we use CarbonCure technology to reduce environmental impact.
What areas do you serve?
We deliver throughout NYC, Long Island, Westchester, Northern New Jersey, and Eastern Pennsylvania.
Are your products UL certified?
Yes, our concrete masonry units undergo independent testing by Underwriters Laboratories and meet ASTM standards.
Can you assist with architectural projects?
Our team provides specialized support for architectural projects including custom masonry solutions and design assistance.
Is Glenwood WBE certified?
Yes, we are certified by NYC agencies as a Woman-Owned Business Entity to help meet minority participation requirements.
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