Recent Blog Posts

Concrete being poured over steel rebar, with a worker in yellow boots leveling it on a construction site.

7 Compelling Reasons to Choose Ready-Mix Concrete for Your Construction Projects

August 7, 2026
Find building supplies and concrete solutions for construction projects, helping contractors improve efficiency, durability, and structural performance.
Foundation rebar grid in a concrete excavation, surrounded by wooden forms and dirt

What Materials Are Used to Make Rebar Tubing?

September 26, 2024
What is rebar tubing, what is it used for, and what is it made of? Read this article to answer your questions regarding this type of construction material.
Person using a long-handled brush to paint a white coating on a dark pavement surface.

What to Look For in Waterproofing Building Material?

September 22, 2023
Are you noticing moisture gathering in your home? Don't delay! Read this article to learn about the best qualities to look for in any waterproofing material.
Stacks of cut lumber boards piled in a warehouse or lumber yard.

How to Identify a Great Building Supply Store

March 10, 2023
Professional contractors and homeowners alike need high-quality supplies from a dependable building supply store. If you need supplies, call us!
Unfinished room framed with exposed wood studs, two windows, and a simple bed frame or platform bed.

The Importance of Waterproofing Materials for a Project

September 6, 2022
Waterproofing your home or commercial building is essential. Read this blog to learn why the type of waterproofing materials you use is important.
Construction workers on a concrete wall, tying rebar at a building site under a blue sky

What You Need to Know About Rebar Pipe

February 23, 2022
According to the U.S Census Bureau, in 2019, the US spent $92 billion on commercial building and a lot of that was for rebar pipe.
Construction Material Supplier
Mamaroneck and Westchester County, NY

Timely, Transparent Communication

Deliveries Within 1-3 Days

Free Estimates

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Timely, Transparent Communication

Deliveries Within 1-3 Days

Free Estimates

Reliable Construction Materials for Every Job

Direct Source Supply is a trusted supplier of construction materials for contractors, builders, masonry professionals, and concrete crews throughout Westchester County, NY and the surrounding areas. Since 2013, our family-owned business has combined more than 30 years of industry experience with responsive service and dependable product sourcing to help customers keep their projects moving forward.

From rebar products and structural steel to concrete accessories, fasteners, insulation, tools, and waterproofing solutions, we supply the products professionals rely on every day. With manufacturer's warranties available on qualifying products and delivery on many in-stock items within one to three days, we make it easier to get the materials you need when you need them. Contact us today for a free estimate on in-stock products.

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Why Choose Us

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Timely, Transparent Communication

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Deliveries Within 1-3 Days

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Free Estimates

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Over 30 Years of Experience

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Short Turnaround Time for Pickups

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Work With the Owner Directly; No Corporate Process

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Construction Materials
We supply quality construction materials that meet industry standards including ASTM A615 Grade 60, ASTM A775, and ASTM A1078 specifications. Our short turnaround time for pickup keeps your project on schedule.
Masonry Materials
DSS provides comprehensive masonry materials certified to ASTM A767 and ASTM A4397 standards for your building needs. We maintain an extensive inventory to support projects of all sizes throughout Westchester County, NY and surrounding counties.
Tools and Accessories
From essential equipment to specialized accessories, we stock the tools you need to complete your concrete and masonry work efficiently. Our knowledgeable team can help you select the right products for your specific application.
Waterproofing Materials
Protect your concrete structures with our selection of waterproofing materials designed for long-lasting performance. We offer products backed by manufacturer's warranties to give you confidence in your investment.

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Recent Projects

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Here's what our satisfied customers are saying...

At Direct Source Supply, we take pride in providing exceptional construction and masonry materials to our customers. We would be grateful if you could share your thoughts about our material supply company with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of DSS and let others know what you think.