Contact Us

IIW Engineers & Surveyors, P.C.
4155 Pennsylvania Avenue
Dubuque, IA 52002

voice: 563-556-2464
fax: 563-556-7811
e-mail: Info

By appointment only at our Wisconsin office
Michael A. Jansen, P.E., S.E.
1638 Thomas Street
Hazel Green, WI 53811

voice: 608-748-4308
cell: 563-599-1436