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Southwestern PA’s Leading Concrete Company for Over 100 Years

Since 1925, Castle Builders Supply has delivered concrete solutions that hold up homes and shape skylines across Pennsylvania. Whether you’re laying a driveway or building a transit hub, we bring the mix, the muscle, and the momentum—on your schedule, every time.
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Your Mix

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Your Way

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24 hours a day

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Versatile Concrete Solutions

From multi-million-dollar commercial undertakings to residential work, Castle Builders helps establish a strong foundation for projects in western Pennsylvania and beyond. As an ACI-certified concrete company, you can trust our team to deliver the highest standard of work at every stage, including mixing, testing, quality control, and delivery.

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A Century of Experience

Founded 100 years ago, Castle Builders Supply has spent decades helping shape the built environment of Southwestern Pennsylvania. We are one of the region’s leading ready-mix concrete providers, now operating eight strategically located plants—four stationary and four mobile.

Today, as a subsidiary of The Lindy Group (the region’s largest asphalt paving contractor and manufacturer), Castle Builders Supply brings a legacy of craftsmanship, dependability, and forward-thinking innovation to every job site.

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What Sets Castle Builders Supply Apart

From quality materials to customized client service, Castle Builders Supply delivers the durable and sustainable materials western Pennsylvania relies on—project after project, decade after decade. We’re committed to excellence, innovation, and reliability in every project, large or small, while fostering integrity, safety, and superior customer service.

What sets us apart

Here’s what sets us apart

CBS Neville Island Plant

LONGSTANDING HISTORY

We bring decades of expertise to every job, delivering premium concrete mixes for residential, commercial, and public infrastructure projects.

CBS PLANT Mix piles

ENVIRONMENTAL ACCOUNTABILITY

Castle Builders Supply is one of the only suppliers in Western Pennsylvania to publicly report Global Warming Potential (GWP) numbers for our concrete mixes.

rebar set for concrete on State Route 4007

PUBLIC-SECTOR EXPERIENCE

Our concrete is PennDOT-approved and trusted for roadway and bridge projects across the region.
CBS concrete mixing truck at concrete plant

CUSTOM MIXES

We tailor each mix to meet the specific performance and durability needs of every job site.
CBS Plant helmet

QUALITY ASSURANCE

Our team follows rigorous in-house testing and quality control protocols to confirm every product meets or exceeds industry standards.

Pittsburgh skyline

COMMUNITY COMMITMENT

With deep roots in Pennsylvania, we care deeply about delivering our communities reliable service and consistent results.
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CBS Neville Island Plant

LONGSTANDING HISTORY

We bring decades of expertise to every job, delivering premium concrete mixes for residential, commercial, and public infrastructure projects.

CBS concrete plant pile

Environmental Accountability

Castle Builders Supply is one of the only suppliers in Western Pennsylvania to publicly report Global Warming Potential (GWP) numbers for our concrete mixes.

rebar set for concrete on State Route 4007

Public-sector Experience

Our concrete is PennDOT-approved and trusted for roadway and bridge projects across the region.
CBS mixing truck at concrete plant

Custom Mixes

We tailor each mix to meet the specific performance and durability needs of every job site.
CBS Plant helmet

Quality Assurance

Our team follows rigorous in-house testing and quality control protocols to ensure every product meets or exceeds industry standards.
Pittsburgh skyline

community Commitment

With deep roots in Pennsylvania, we care deeply about delivering our communities reliable service and consistent results.
Learn More

Trusted by Industries, Embraced by Communities

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Commercial

We provide high-performance concrete for large-scale developments, such as office buildings, retail centers, and warehouses—projects that require strength, consistency, and timely delivery.
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Industrial

Our durable mixes are built to withstand the demands of manufacturing facilities and other heavy-use environments where long-term performance is essential.
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Public Sector

We supply PennDOT-approved concrete for government-funded roadways, bridges, and infrastructure projects across Pennsylvania.
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Residential

From driveways and patios to home foundations, we deliver reliable concrete solutions that form the base of lasting residential construction.
CBS worker spreading concrete in front of mixing truck

Solid Careers Start Here

We’re building more than concrete—we’re building a team with the strength, skill, and resolve to deliver excellence. At Castle Builders Supply, you’ll find competitive pay, comprehensive benefits, and real opportunities to advance.

If you are driven by commitment, value teamwork, and ready to build something that lasts, contact us today to discuss a potential future with CBS.

Join Our Team
CBS worker spreading concrete with large squeege

Build a Legacy With Castle Builders

As Southwestern Pennsylvania’s premier concrete company, Castle Builders Supply provides time-tested and forward-thinking solutions for every project.

Build your vision with a team you can count on.

Build with CBS