STI is an established commercial an industrial insulation contractor

We are a merit shop serving a wide range of customers in New York, Vermont, New Hampshire, Maine, Massachusetts, Connecticut, Pennsylvania, Delaware, Maryland, Virginia, New Jersey and West Virginia.

Hard Hat & Blueprint

What We Do

Our services generally encompass the application of fibrous glass, calcium silicate, cellular glass, mineral wool, styrofoam or plastic foam insulation to heating, plumbing, or industrial process piping, duct work, tanks and equipment.

In Business For Over 35 Years

Established in 1978, Southern Tier Insulations has been working with a wide range of clients for over 35 years. Thanks to a combination of managerial foresight and quality conscious craftsmen, STI has experienced continuous growth and has built a broad base on which to continue that growth.