Pre-Construction Surveys Throughout the Northeast and New York City

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




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

ph (860) 805.7885   NYC (917) 795.9021

​​    AREAS WE SERVE

 Pre-construction surveys are required before construction on job sites for the protection of all parties involved. We document by digital video and photography, all existing conditions on the interior and exterior of any type of structure.  We have surveyed homes, businesses, office buildings, bridges, schools, and dams. These videos are comprehensive and record all surfaces. This is to ensure that there is nothing missing in case of a damage claim. Sometimes people find fault or flaws in normal construction. This may also be called a "Building Envelope Survey". These surveys usually stop a claim from being filed after an initial review of the video.


NEW YORK CITY TPPN 10/88 (Technical Policy and Procedure Notice, 1988)


If you are working within 90' of a Historical Building, you must adhere to this law. This may require you to perform pre-construction surveys, crack and tilt monitoring and vibration monitoring. Before many projects can be carried out in New York City, surveying and monitoring must be completed prior to construction. At Hartford Structural,  you will be provided this service to stay compliant with this NYC Policy. 
The Technical Policy and Procedure Notice # 10/88 (TPPN 10/88) of the New York City Department of Buildings (NYCDOB) requires for surveying and monitoring of all landmark buildings located on a 90’ radius of a job site in New York City. Vibration Monitoring Equipment and Existing Conditions Photographic Surveys are the steps and procedures needed to take when it comes to complying with this strict construction code. Initial construction phases, primarily demolition and foundation work, are known to create and emit vibration shocks that affect nearby structures, where Landmark buildings, due to their years of existence, might well be significantly affected.








 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