Tri-State Underlayments Providing Our Services to Connecticut and the Surrounding Areas Since 1989! Contact Us Tri-State Underlayments Providing Our Services to Connecticut and the Surrounding Areas Since 1989! Contact Us Your Trusted Experts for Exceptional Flooring Services Commercial & Industrial Floor Underlayments and Concrete Polishing LEVELROCK™ Licensed Applicator Gypsum Cement Poured Floors Floor leveling Dust-free shot-blasting/diamond grinding Concrete shaving Concrete polishing/staining