Inspection Types

electrician fitting sensor to office interiorAK Engineering provides a complete spectrum of Special- and Progress-Inspection services, helping clients fulfill New York City Department of Buildings (DOB) regulations within an expansive array of categories.

Inspections are performed by AK Engineering during various stages of construction, addressing each specific project’s needs and ensuring that every regulated component of an installation satisfies DOB requirements. AK Engineering is authorized to sign TR 1 forms for inspections as required by law in New York.

DOB-approved AK Engineering can help guide you through the regulatory process and will provide the Special Inspections and Progress Inspections you require in order to ensure compliance. 


  • Fire Alarm Test
  • Photoluminescent Exit Path Markings
  • Emergency Power Systems (Generators)
  • Structural Steel: Erection And Bolting
  • Structural Cold-Formed Steel
  • Concrete: Cast-In-Place
  • Concrete: Precast
  • Masonry
  • Soils – Site Preparation
  • Soils – Fill Placement and In-Place Density
  • Wall Panels, Curtain Walls, and Veneers
  • Sprayed Fire-Resistant Materials
  • Exterior Insulation Finish Systems (EIFS)
  • Smoke Control Systems
  • Mechanical Systems
  • Fuel-Oil Storage and Fuel-Oil Piping Systems
  • Structural Safety, Structural Stability
  • Mechanical Demolition
  • Site Storm Drainage Disposal and Detention System Installation
  • Sprinkler Systems
  • Standpipe Systems
  • Heating Systems
  • Chimneys
  • Firestop, Draftstop, and Fireblock Systems
  • Seismic Isolation Systems


  • Preliminary
  • Footing and Foundation
  • Lowest Floor Elevation
  • Frame Inspection
  • Energy Code Compliance Inspections
  • Fire Resistance Rated Construction
  • Public Assembly Emergency Lighting
  • Final Inspection

AK Engineering further addresses the needs of  clients by regularly eliminating the need to shop elsewhere when additional types of inspections are required. By working in tandem with qualified and experienced subcontractors with specialties other than our own, the company seamlessly provides such additional inspection types as:

  • Flood Zone Compliance
  • Structural Steel: Welding
  • Concrete: Prestressed
  • Wood: Off-Site fabrication of Structural Elements
  • Wood: Installation of High-Load Diaphragms
  • Wood: Installation of Metal-Plate-Connected Trusses
  • Wood: Installation of Prefabricated I-Joists
  • Soils: Investigations (Borings/Test Pits)
  • Pile Foundations and Drilled Pier Installation
  • Pier Foundations
  • Underpinning
  • Alternative Materials
  • High Pressure Steam Piping (Welding)
  • Fuel-Gas Piping (Welding)
  • Mechanical Demolition
  • Excavation, Sheeting, Shoring and Bracing
  • Soil Percolation Test: Drywell/Septic
  • Concrete Test Cylinders