Trade References

Hard Hat & Blueprint

STI has been in business for 40 years. We've worked with over 300 customers all over the northeast. Feel free to contact our trade references below. Additional references are available upon request.


1097 Commercial Avenue
P.O. Box 576
East Petersburg, Pennsylvania 17520
(717) 569-3900

General Insulation Company, Inc.

24 East Cross Street
Somerville, Massachusetts 02145
(617) 666-8029