HSI Services

New Construction

Demolition / Renovation Projects                

Drilling and Blasting  

Demolition/Renovation Projects

Foundation Excavation and Construction

Rock Hammering

Sheet and Pile Driving and Shoring      

All utilities, Gas Main,  Water, Sewer
Vibratory Compaction      

​General Excavation

Highway Construction and Widening                       

Line Drilling                           
​Rock Quarry Work           

Certified M/WBE / DBE Business

                         PROJECTS WE SERVE


ph (800) 225.6913   NYC (917) 795.9021





59 Woodford Road

Scarsdale , New York 10583

86 Weed Ave, Norwalk
8 Green Hill Road, Manchester


1 Michaels Green, Woburn

New York 

131-47 225th Street , Jamaica

76 Whalen Road, Hopewell Junction


44 Kipling LaneAlbrightsville

Rhode Island

9 Lyndhurst Ave, Providence

Washington, D.C.

712 H Street NE, Unit 879

Special inspectors are third party licensed professional engineers who oversee the construction and materials testing to sign off on your project. Special inspection agencies are required to be hired by the owner, and are required for every single permitted project in New York City.  We provide all levels of special inspection services from concrete to fit out including structural steel, welding, concrete, masonry, and spray fireproofing, mechanical, energy, sprinkler, and firestopping. Our team includes special inspectors for;

The inspectors are multidimensional therefore maximizing the skills and abilities of each inspector and pass significant savings to our clients. For example, we use mechanical inspectors that are also certified in energy, plumbing, sprinklers, and fire/life safety since they are closely related to mechanical system installation.

Our Engineering Services have received special inspection accreditation from International Accreditation Service (IAS).

 Shop Inspections of steel, concrete, pre-cast, and pipe fabrication.
 Special Inspections and Construction Inspections
 Load Testing of slabs, balconies, railings, fire escapes, etc.
 Post Installed Anchor Testing (PIA)
 Ground Penetrating Radar (GPR)
 Site Safety Plans, Fire Safety Plans, and Tenant Protection Plans
 Non-Destructive Testing (UT, MT, PT, RT)
 Pre-construction Services including vibration monitoring
 Engineering investigation including failure analysis, existing conditions of structures and systems, foundation and slab investigations, building facade and envelope inspections
 Expediting and Code Consulting Services
 Construction Management, Program Management, and Owner's RepresentationT


Pre-Construction Inspections / Surveys
Pre-Blast Inspections / Surveys 

All DOB Monitoring and Inspections

Vibration and Sound Monitoring Solutions

Automatic / Wireless Vibration Monitoring

Horizontal and Vertical Settlement (Optical Monitoring)
Sound and Crack Monitoring

Tilt Monitoring

Dust Monitoring

TI - 88 Compliance
Manual Vibration Monitoring
Well Water Testing
Expert Testimony