Membership Ankeny Area Business Directory Map for Septagon Construction Company Map for Septagon Construction Company Search | Advanced Search | New Members | Coupons and Discounts | All Categories Home & Garden >> Contractor >> Commercial Septagon Construction Company 2950 Gateway Dr.Grimes, IA 50111 | directions Dean Pfaltzgraff (515) 986-7313 | fax: (515) 986-7309 Visit Site If your business isn't here, contact us today to get listed! Subscribe to our Newsletter Name* First Last Email* Security Policy Marketing Opportunities Member Login