Better Business Bureau -Promoting Fairness and Integrity in the Marketplace.

Carlisle SynTec

Dow Roofing Systems

Duro-Last Roofing, Inc. - Duro-Last Roof System, "The World's Best Roof"

Johns Manville - Commercial/Industrtial Roofing Systems

National Roofing Contractors Association (NRCA)

Tile Roofing Institue