Getting in Touch

To inquire about our services, please contact us by calling
(877) 907-9078 or using the form below.

Corporate Headquarters, Maryland

77 Upper Rock Cir., Suite 302
Rockville, Maryland 20850

Tel. 301.907.9078
Contact: Fred Carey, P.E., President
fredc@phe.com

 

California

Tel. 619.260.1033 x3011
Contact: Paul DiPaolo, Project Manager
paul.dipaolo@phe.com