PRECAST
Roman Stone manufactures a wide range of precast concrete vaults designed to meet the demands of major infrastructure, utility projects and NYC DEP regulations. Our electrical vaults and utility precast boxes are engineered for strength, versatility and utility-grade reliability. From custom-built solutions to standardized units–and a delivery process built to handle the heaviest specs–we’re equipped to help you make progress with your next vault installation.
Trusted Supplier for 
Below-Grade Durability
- Engineered to withstand heavy surface loads and harsh environments, including urban streetscapes and industrial zones
- Built to support quick access, secure closures and deliver long-term service
- Ideal for housing electrical switchgear, transformers and high-voltage equipment across utility, energy and telecom sectors
- Durable construction protects critical components in a range of environments
Quality Manufacturing
- Engineered for structural integrity, water resistance and load-bearing performance
- Vaults are precast and cured at our Long Island facility in a controlled environment to ensure the highest quality standards
Standard & Custom Specs
- We can manufacture both standard and custom-built vaults tailored to specific site conditions or utility needs
- We offer configurations to meet a wide range of sizes, loading requirements and access features
- Available with customized knockouts, conduit entries, racking or grounding components
- Optional hatches, covers and access hardware can be included or matched to spec
- Our precast experts work with you to develop vaults that meet your site, load and dimensional needs
Streamlined Delivery & Support
- We communicate every step of the way to ensure on-time delivery
- Our team coordinates transport and staging for safe placement and efficient installation, including multi-truck loads for oversized units
- Experienced in placing vaults on complex job sites
VAULT TYPES & APPLICATIONS
Utility Vaults
- Used to house power distribution components like transformers and switchgear
- Designed to handle heavy live loads and underground conditions
Pull Boxes & Junction Vaults
- Provide access and routing points for underground electrical and telecom cabling
- Can include cast-in conduit ports, knockouts or interior racking features
Manholes
- Full‑access chambers for installation, inspection and maintenance of large‑scale utility networks
- Can be equipped with integrated ladders, venting and heavy‑duty covers
Custom Utility Structures
- Built to meet any non-standard size, shape or load conditions
- Engineered to your specific dimensions and project specs
- Optional features include ladders, sump pits, access hatches and more
Project Spotlight:
Astoria – CHPE Power Project
Roman Stone played a key role in the Astoria segment of the Champlain Hudson Power Express (CHPE) clean energy infrastructure initiative with vault delivery and placement. Working alongside contractors and site crews, our team coordinated delivery logistics and field support to ensure each precast vault was safely installed on schedule.
NEED HELP CHOOSING A VAULT?
Our team can help you determine whether a standard or custom vault is right for your project and walk you through available sizes, connection points and structural options to keep your project moving forward.
Industry Certifications and Key Supplier Approvals
