Pre Blast Inspections / Surveys
Pre / Post Construction Inspections / Surveys 

TI - 88 Compliance
Vibration Plans / Crack Monitoring
Vibration and Sound Monitoring Solutions

Manual Vibration Monitoring
Automatic / Wireless Vibration Monitoring
Well Water Testing
Radon Testing
Carbon Monoxide Monitoring
Expert Testimony

HSI Services

                    Projects We Serve

​​    AREAS WE SERVE

ph (860) 805.7885   NYC (917) 795.9021

Hartford Structural Locations


corporate office

59 Woodford Road

Scarsdale , New York 10583


office locations in:


Bronx, New York

Laurelton, New York

Mount Vernon, New York

Hopewell Junction, New York

Ansonia and Manchester, Connecticut

Melrose, Massachusettes

Stroudsburg, Pennsylvania




Horizontal and Vertical Settlement Surveys

OPTICAL MONITORING

​Settlement Monitoring Points, Brooklyn,.

Here at HSI, we provide comprehensive data reports to track any structural movement (horizontal or vertical). We monitor at sites that require ongoing construction activities (underpinning, excavation or demolition). Our Licensed Land Surveyors will install surveying targets at specific locations on neighboring structures near your construction site.

Optical Monitoring Survey services are provided on a bi-weekly, weekly, or daily basis.HSI is the most accurate and cost-effective company in this business. Please call for help with this important process. 

​Horizontal and Vertical Movement Surveys are required by TPPN 10/88 in Manhattan, Bronx, Queens, Brooklyn, and Staten Island.

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 Drilling and Blasting  

Tunnel Work

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           
Demolition and Rehab Projects