”From time to time, clients ask for professional floor testing to measure the slip coefficient of the stone floors we maintain. We turn to certified testing companies such as SSI to provide proper testing and documentation. I have personally worked with Patricia Vassallo & her testing team. They are very professional, meet compliance requirements, pay attention to clientele needs, and above all, deliver consistent on-time detailed reporting. I do not worry about a job that I put in their hands."
— Stephanie Merkel, Onyx Restoration Works, LTD