Centrally located in the US Mid Atlantic region, Therm-O-Rock East’s manufacturing facilities are located in Western Pennsylvania, approximately 20 miles south of Pittsburgh, PA.

Our plants offer convenient access to: rail, road, water and air transportation. All plants utilize bulk and palletization for shipping and receiving.

  • Rail: Two sidings access Norfolk Southern spurs
  • Truck: Within 3 miles of the Interstate highway system
  • Water: Multiple storage locations with river load-out facilities
  • Air: 40 minutes from Greater Pittsburgh International Airport (PIT)

From our Western PA location, we receive and ship raw materials and finished products worldwide. Ocean freight is available through East Coast ports and ports of New Orleans.

Services Include:

Toll Manufacturing

  • Custom Blending
  • Contract Packaging


  • Industrial
  • Horticulture & Agriculture
  • Construction


  • Industrial
  • Horticulture & Agriculture
  • Construction

Horticulture Mixes

  • Professional Growing Media
  • Blended Specialized Mixes