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Through rain, sleet or snow, CSSI is still on the go.

We are a full-service contracting company providing quality service to industrial, residential, and commercial clients from New Hampshire to Massachusetts. Our licensed contractors and expert technicians are dedicated to working with you to implement a solution that meets your needs. 

At C.S.S.I we provide our customers with the highest standards in craftmanship. Together as a team, we strive to provide you with only the best quality and services. We have the experience and dedication to finish any job with your satisfaction. 


Our services include:
    • Utility Construction
    • Commercial Development
    • Residential Development 
    • Municipal Development 
    • Athletic Fields
    • Trucking
    • Road Building
    • Retaining Walls
We provide FREE ESTIMATES...give us a call or fill out the form on the Request an Estimate page.