Contact Us
- Corporate HQ Office
- Northeast Region Office
- Mid-Atlantic Region Office
- North Central Region Office
- Great Lakes Region Office
Corporate Headquarters
Contact: Lyle Simonton, PE – Director of Business Development
101 Angelica Street
St. Louis, MO 63147
Toll free: (866) 421-2460
Fax: 314-421-2479
Email: lsimonton@subsurfaceconstructors.com
Northeast Region
Contact: Lyle Simonton, PE – Director of Business Development
CT, MA, VT, RI, NH, ME, NJ, NY
Phone: (314) 568-3827
Email: lsimonton@subsurfaceconstructors.com
North Central Region
Contact: Gary Hahn, PE – Region Manager
WI, MN, IA, NE, SD, ND, ID, WY, MT
120 Broadway Avenue South Suite #100
Wayzata, MN 55391
Phone: (612) 280-8940
Email: gary.hahn@subsurfaceconstructors.com
Great Lakes Region
Contact: Lyle Simonton, PE – Director of Business Development
IN, KY, OH, MI
Phone: (314) 568-3827
Email: lsimonton@subsurfaceconstructors.com
Mid-Atlantic Region
Contact: Garett Leap
VA, WV, MD, DC, PA, DE
145 W. Ostend Street, Suite 605
Baltimore, MD 21230
Phone: (443) 570-3852
Email: garett.leap@subsurface.net
For more information on ground improvement or other services, please provide the following information.
