July 2008  Licensed Whisper-Wall Manufactures  Pennsylvania: J.R. Slaw Precast:              610-852-2020 www.slawprecast.com Virginia: Coastal Precast Systems:           703-222-9700 www.cpsprecast.com  North Carolina: Coastal Precast:              757-545-5215 www.cpsprecast.com  Illinois: The Prestress Group .                  519-737-1216 www.psi-hci.com Indiana:   Hollowcore Midwest C.              513-829-1555 www.psi-hci.com Maryland:  Coastal Precast Systems.       703-222-9700 www.cpsprecast.com  NH,Conn,Mass.  Concrete Systems Inc   603-889-4163 www.csigroup.biz Florida :   Mack Industries, Astatula.        352-742-2333    www.mackconcrete.com Quebec, Canada:   Tremca Groupe             450-346-4481    www.tremca.com  Puerto Rico:    Esan Precast.                      787-855-3607    www.esanprecast.com Ohio:        Mack Industries, Inc.                  330-483-3111     www.mackconcrete.com  Michigan: Hollowcore Midwest LLC       313-962-9189    www.psi-hci.com  Texas:     Tricon Precast Inc.                        281-931-9832  www.triconprecast.com  California: Concrete Innovations       703-222-9702   www.whisper-wall.com  Missouri:   McCann Concrete             618-377-3888 www.mccannconcreteproducts.com                 Whisper Wall is a proprietary sound absorbing noise barrier. Manufactures are required to secure a License Agreement from Concrete Innovations prior to manufacturing. Please contact Concrete Innovations if a manufacturer is not listed on our web site. .For Licensing information  phone 703-222-9702   Concrete Innovations Services 4215 Lafayette Center Drive Suite 1-A Chantilly, Virginia. 20151 Phone: 703-222-9702 Fax:      703-222-9733 E-mail: info@whisper-wall.com                                                                                                                                                                                                 Return to Home Page