CTSI is a fully qualified and registered Class 2 Special Inspection and Progress Inspection Agency providing comprehensive inspection, compliance, and technical consulting services throughout New York City and surrounding regions. Our inspectors and technical professionals support owners, developers, architects, engineers, contractors, and construction managers through the design phase, filing phase, active construction, and project closeout.
Under the NYC Building Code, construction projects approved by the Department of Buildings (DOB) require Special Inspections and Progress Inspections to verify compliance with approved plans, code requirements, material specifications, life safety systems, and quality assurance procedures. CTSI performs inspections and provides required documentation associated with TR1/TR8 Technical Report Statements of Responsibility and Certificates of Completion.
Our Technical Services division provides structural, mechanical, plumbing, fire protection, civil, architectural, and code compliance inspections designed to support regulatory compliance, construction quality, occupant safety, and project efficiency. CTSI works proactively with project teams to reduce delays, streamline inspection coordination, maintain documentation accuracy, and support successful project delivery.
Civil & Site Inspections
Our Civil Inspection services support site development and infrastructure construction by verifying that civil work is performed in accordance with approved engineering plans, municipal requirements, and applicable construction standards. These inspections include grading, excavation, utility installations, drainage systems, stormwater management, paving operations, retaining walls, sidewalks, curbs, and erosion control measures. Inspectors monitor site conditions, installation procedures, material compliance, and testing activities to help ensure proper construction quality, environmental compliance, and long-term infrastructure performance. Civil inspections play a critical role in supporting safe site development, regulatory compliance, public infrastructure reliability, and successful project completion.
Civil inspection services include:
- Underpinning Inspections
- Foundation & Footing Verification
- Subgrade Inspections
- Fill Placement & Density Testing
- Deep Foundation Systems
- Helical Pile Inspections
- Soil Percolation Testing
- Storm Water Disposal Systems
- Sewage Disposal System Inspections
- Flood Zone Compliance
- Excavation Monitoring
- Soil Anchor Inspections
- Vertical Foundation Elements
- Site Stabilization Monitoring
Our civil inspection services help ensure site conditions, earthwork operations, and foundation systems comply with approved plans and regulatory requirements.
Plumbing & Mechanical Systems
CTSI performs Special Inspections for plumbing, HVAC, fuel gas, mechanical, ventilation, and energy systems in accordance with NYC Building Code requirements.
Inspection services include:
- Mechanical Systems
- Fuel-Oil Storage & Piping Systems
- Heating Systems
- High Pressure Steam Piping Welding
- High Temperature Hot Water Piping Welding
- High Pressure Fuel Gas Piping Welding
- Non-Potable Water Systems
- HVAC-R Systems & Controls
- Duct Leakage Testing
- Ventilation & Air Distribution Systems
- Exhaust & Vent Systems
- Metering Verification
- Shutoff Dampers
- Service Water Heating Systems
- Energy Code Compliance
CTSI supports MEP coordination, installation verification, system performance assessments, and compliance documentation throughout all project phases.
Structural Materials & Construction Operations
CTSI provides Special Inspections for structural systems, materials testing, welding operations, and construction activities affecting structural integrity and life safety.
Structural inspection services include:
- Structural Steel Welding
- Structural Steel Bolting
- Structural Steel Detailing
- Structural Cold-Formed Steel
- Concrete Cast-In-Place
- Precast & Prestressed Concrete
- Masonry Inspections
- Wood Construction & High-Load Diaphragms
- Open-Web Steel Joists & Joist Girders
- Structural Stability Monitoring
- Excavation, Sheeting, Shoring & Bracing
- Deep Foundations
- Underpinning
- Vertical Masonry Foundations
- Post-Installed Anchors
- Seismic Resistance Inspections
- Aluminum Construction
- Construction Operations Affecting Adjacent Structures
- Demolition Monitoring
- Raising & Moving of Buildings
Additional services include:
- Concrete Sampling & Testing
- Grout Sampling & Testing
- Soil & Subsurface Investigations
- Fill Placement & Density Testing
- Borings & Test Pits
- Helical Pile Foundation Inspections
CTSI provides field observation, materials verification, testing coordination, and reporting to support structural safety, code compliance, and project quality assurance.
Regulatory Compliance Assessment & Management
CTSI provides Environmental Health & Safety compliance assessments and management services for organizations seeking to maintain compliance with evolving federal, state, and local regulations. Our consultants evaluate workplace conditions, operational procedures, documentation, and environmental health risks to identify compliance gaps and recommend corrective actions.
Regulatory support may include:
- OSHA compliance assessments
- EPA and DEP compliance evaluations
- Facility inspections and audits
- Hazardous waste compliance
- Industrial hygiene assessments
- Exposure monitoring
- Corrective action recommendations
- EHS management planning
- Documentation and recordkeeping review
- Site-specific safety protocols
- Regulatory training development
CTSI supports compliance involving OSHA, EPA, NYS DEC, NYC DEP, DOH, DOL, FDNY, RCRA, and other environmental and occupational health regulations applicable to commercial and industrial operations.
Fire Protection Systems & Fire-Resistant Construction
CTSI provides Special Inspections and compliance verification services for fire protection systems and fire-resistant construction assemblies required by NYC DOB and fire code regulations.
Inspection services include:
- Sprayed Fire-Resistant Materials (SFRM)
- Mastic & Intumescent Fire-Resistant Coatings
- Fire-Resistant Penetrations & Joints
- Smoke Control Systems Testing
- Sprinkler Systems
- Standpipe Systems
- Emergency & Standby Power Systems
- Public Assembly Emergency Lighting
- Fire-Resistance Rated Construction
- Fire Protection System Verification
- Life Safety System Coordination
Our inspectors verify installation quality, system functionality, material compliance, and life safety performance throughout active construction and final project closeout.
What industries do you specialize in?
How can I request a consultation?
What is your consulting process like?
What sets your consulting firm apart from others?
View Our Services
Industrial Hygiene
Environmental, Health,
& Safety (EHS)
Technical Services
Emergency Response
We're here to help.
From environmental compliance and workplace safety to emergency response and technical services, CTSI provides expert solutions nationwide. Complete the form and a member of our team will be in touch shortly.
Get started
