Registered Special Inspection Agency

Special Inspections

NYC DOB-required special inspection services ensuring construction work complies with Chapter 17 of the NYC Building Code, approved drawings, and manufacturer specifications. Registered Special Inspection Agency with 28+ years of NYC experience.

Code Compliance

What Are Special Inspections?

Special inspections are mandatory, third-party construction oversight services required by Chapter 17 of the NYC Building Code (paralleling IBC Section 1704). The NYC Department of Buildings requires these inspections for critical structural components — including steel, concrete, masonry, post-installed anchors, and fire-resistant materials — to ensure that work is performed in strict accordance with approved construction documents and applicable code provisions.

As a Registered Special Inspection Agency, we provide comprehensive quality oversight throughout the construction process. Before work begins, we coordinate with the design team to establish the inspection scope and file the required TR1 designation with DOB. During construction, our qualified inspectors are on-site at critical phases to verify compliance. Upon completion, we provide the documentation required for DOB project signoff and closeout.

Special inspections are performed at critical points during construction, focusing on components and connections essential to the structural integrity and safety of the building. This independent verification protects property owners, ensures regulatory compliance, and provides documented assurance that the construction meets its intended design standards.

Why Special Inspections Matter

Special inspections are vital to construction safety because they ensure projects are built to specifications and help protect lives. A properly inspected sprinkler system, for example, can prevent a small office fire from escalating into a dangerous situation.

Accreditation & Standards

Our inspection services maintain compliance with ISO/IEC 17020, ASTM E329, and all NYC Department of Buildings requirements.

ISO/IEC 17020
ASTM E329
NYC DOB
Required Inspections

Special Inspection Categories per NYC Building Code

The following inspections are required by Chapter 17 of the NYC Building Code and IBC Section 1704 for specific construction activities. Each category requires qualified inspectors with appropriate certifications and experience in the applicable discipline.

Steel Construction

Verify integrity of framing welds and joints
High-strength bolt inspection and verification
Location verification of bracing and stiffening materials
Structural steel connection inspection

Concrete Construction

Reinforcing steel placement and spacing verification
Connecting bolt and anchor installation inspection
Application technique and placement monitoring
Concrete strength testing and verification
Design mix compliance and curing maintenance oversight

Masonry Construction

Mortar joint construction quality assessment
Grout placement and consolidation verification
Reinforcement welding inspection
Prestressing technique monitoring
Masonry unit installation verification

Wood Construction

High-load diaphragm inspection
Framing member verification at panel edges
Nail and staple diameter and length verification
Structural wood connection inspection

Pile and Pier Foundations

Foundation material verification
Size, length, and placement inspection
Plumbness and alignment verification
Diameter and embedment depth confirmation

Soils

Soil classification testing
Bearing capacity verification
Fill quality assessment
Density testing and compaction verification

Sprayed Fire-Resistant Materials

Thickness measurement and verification
Density testing
Bond strength testing to structural elements
Application quality assessment

Smoke Control Systems

System performance verification
Operation and control testing
Interaction verification with other building systems
Compliance documentation
Our Process

Professional Inspection Services

Continuous Monitoring

On-site observation at critical construction phases to ensure compliance with approved plans and specifications.

Detailed Documentation

Comprehensive inspection reports documenting observations, test results, and compliance verification.

Code Verification

Thorough review against NYC Building Code requirements and manufacturer installation guidelines.

Ensure Your Project Meets NYC Code Requirements

Partner with a Registered Special Inspection Agency backed by over 28 years of NYC construction oversight experience. From TR1 designation through final signoff, we provide the DOB compliance verification your project requires.