Sustainability

Merging innovation and experience to set the standard for sustainable block manufacturing

Mission Statement

At Glenwood Mason Supply Company, Inc., our mission is to provide the highest-quality masonry products, expertise, and service to the construction and architectural communities we serve.

As a New York City-based manufacturer and supplier, we are committed to combining quality, innovation, sustainability, and dependable service to help our customers build stronger, safer, and more resilient communities.

We strive to be more than a supplier—we are a trusted partner to architects, engineers, contractors, masons, and developers, providing the knowledge, products, and support needed to bring great projects from concept to completion.

Through responsible manufacturing, sustainable material innovation, and a continued investment in our people and industry, Glenwood is dedicated to building a better future—one project, one partnership, and one masonry unit at a time.

Building a Sustainable World, One Block at a Time

Glenwood Mason regularly creates new opportunities for greener buildings. Our state-of-the-art plant produces a 
full range of strengths, weights, and sizes of block — all manufactured to strict industry specifications. By partnering progress with significant industry relationships, we’re able to research and deploy cutting-edge, low-carbon solutions through a premier product offering.

We offer a more diverse selection of concrete block than any other manufacturer in the market, thanks to a collective commitment to innovate and experiment with color and aesthetic features.

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Glenwood Green Initiatives

A forward-thinking approach to sustainable advancement and design
Carbon Cure Logo
Carbon Cure
Concrete block containing sequestered carbon dioxide.

Controlled mix designs to ensure consistent carbon contribution per block.

Available in every size regular CMU is offered Only CMU producer in New York equipped with Carbon Cure™.
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CarbonQuest
CarbonQuest is a key Glenwood Mason partner in the building decarbonization space, whose sustainable carbon, captured from building exhaust, makes it possible to infuse recycled carbon directly into cement mix to permanently sequester it.
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Pozzotive logo
pozzotive
Pozzotive® Ground Glass Pozzolan in Concrete BlockPozzotive® Ground Glass Pozzolan (GGP) is a recycled supplementary cementitious material made from post-consumer glass. When incorporated into concrete masonry units, Pozzotive helps reduce the environmental impact of concrete block while improving performance and durability.
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Sequestering Carbon in Concrete Block. Climate Week NYC 2024

Reliable product, sustainable thinking, unbeatable service
Featured Project - 270 Park Avenue

JPMorgan 60-story NYC Headquarters

The skyscraper is fully powered by renewable energy from an upstate New York hydroelectric plant. It also incorporates advanced sustainability features, including a water storage system, triple-pane glazing, and smart technologies that predict and adjust to the building’s energy needs, as 6sqft previously reported.
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Designed to achieve LEED Platinum V4 certification and WELL Health-Safety Rating, the building’s triple-pane glazing and automatic solar shades enhance energy efficiency while bringing in 30 percent more natural light. 270 Park also features the largest installation of triple glazing in New York State.

In addition, 97 percent of the materials from the tower’s demolition were recycled, reused, or upcycled—far exceeding the LEED benchmark of 75 percent. Advanced water storage and reuse systems further reduce the building’s water consumption by more than 40 percent.
1400
foot-tall
2500000
square feet
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