Providing certified DOB Special Inspections, accurate cost take-offs, Plumbing Engineering, and dedicated Resident Engineering (REI) across Queens, Brooklyn, Manhattan, and New York City.
Every civil project is unique. Our engineering capabilities can be tailored to the size, complexity, timeline, and NYC compliance mandates of your site.
Full-time on-site technical inspection, material verification, contractor coordination, and progress log auditing.
Detailed quantity take-offs, trade cost breakdowns, pre-construction feasibility audits, and value engineering reviews.
NYC DOB-compliant inspections covering structural steel, concrete, masonry, excavation, and life-safety systems.
Civil plumbing schematics, municipal water main hookups, backflow prevention, and installation code verification.
End-to-end site supervision, subcontractor alignment, safety protocol enforcement, and timely handover execution.
Our licensed Professional Engineers (PE) inspect and sign off on all Class 2 Special Inspections in strict accordance with the NYC Construction Codes.
| DOB Category | Inspection Scope | NYC Code Compliance | Deliverable |
|---|---|---|---|
| Special Inspection | Structural Steel & Welding | BC 1704.3 | TR-1 Sign-Off |
| Special Inspection | Concrete & Cast-in-Place | BC 1704.4 | TR-1 Sign-Off |
| Special Inspection | Masonry Construction | BC 1704.5 | TR-1 Sign-Off |
| Special Inspection | Firestopping & Penetration Seals | BC 1704.27 | TR-1 Sign-Off |
| Engineering | Resident Engineering Inspection (REI) | DOT / NYC Infrastructure | Daily QA Logs & Closeout |
A structured sequence keeps expectations, schedules, budgets, and jobsite safety clear at every project milestone.
We review project drawings, site conditions, DOB filings, and schedule requirements with engineering leadership.
We establish inspection milestones, trade cost take-offs, safety procedures, and procurement schedules.
Our resident engineers perform daily quality assurance, structural field audits, and compliance logging.
Active site operations are managed under certified protocols to keep work safe and moving forward efficiently.
We complete final inspection reports, punch lists, and deliver organized closeout documentation for municipal approval.
Everything you need to know about our civil engineering services, processes, and NYC DOB compliance requirements.
A Special Inspection is a third-party verification process required by the NYC Department of Buildings (DOB) to ensure that specific structural and safety-critical construction work is performed in accordance with approved plans and building codes. It is typically required for structural steel connections, high-strength concrete, masonry, excavation, fire-stopping, and more. BlackRock Civil is certified to perform all DOB-required Special Inspections across NYC.
Resident Engineering Inspection (REI) involves placing a qualified engineer on-site full-time or part-time to oversee construction activities. This includes reviewing contractor work quality, verifying material compliance, logging daily site conditions, coordinating with architects and owners, and ensuring the project progresses in alignment with contract documents and regulatory requirements. BlackRock Civil provides dedicated REI services for commercial, infrastructure, and civil projects across Queens and NYC.
Our cost estimation process uses detailed quantity take-offs from architectural and engineering drawings, current NYC market pricing data, and verified subcontractor rate benchmarks. We typically deliver estimates within ±5–10% accuracy depending on design completeness. We also provide value engineering recommendations that can significantly reduce project costs without compromising structural integrity or compliance.
Yes. BlackRock Civil serves a wide range of project types including commercial build-outs, mixed-use developments, multi-family residential buildings, infrastructure upgrades, and civil utility projects. Whether your scope is a single townhouse underpinning or a multi-story commercial special inspection, our team can support your project at any scale.
We are primarily based in Queens, NYC, and regularly serve all five NYC boroughs — Queens, Manhattan, Brooklyn, the Bronx, and Staten Island. We also take on projects in surrounding New York metropolitan areas including New Jersey when required. Contact us directly to discuss your specific project location.
The easiest way to get started is to contact Sourabh S Tiwari or Raja Ramnathan directly by phone, WhatsApp, or email. You can also fill out our online consultation form on the Contact page. We'll schedule a discovery call to understand your project scope, timeline, and compliance requirements, and provide a proposal within 48 hours.
Absolutely. One of BlackRock Civil's key advantages is our ability to provide multiple engineering disciplines under a single point of contact. We can deliver integrated plumbing engineering, special inspections, cost estimation, and full construction management simultaneously — reducing coordination overhead and improving project delivery efficiency.
A TR-1 (Technical Report) is an official NYC Department of Buildings document where a licensed Professional Engineer (PE) certifies that required special inspections—such as concrete, structural steel, or firestopping—have been completed in compliance with NYC Building Codes. BlackRock Civil prepares and submits all initial, progress, and final TR-1 sign-offs via DOB NOW.
BlackRock Civil is the operating identity of BlackRock Civil LLC (also known as Black Rock Civil and Blackrockcivil) operating online via blackrockcivil.net. All licensed civil engineering, REI, and NYC DOB special inspection operations are managed directly by our Jamaica, Queens engineering office.
