Capelle Bros. & Diedrich, Inc. Capelle Bros. & Diedrich, Inc. Search | Advanced Search | New Members | Coupons and Discounts | All Categories Real Estate & Construction >> Contractors and Construction Capelle Bros. & Diedrich, Inc. 248 N. Hickory St.Fond du Lac, WI 54935 | map | directions 920.921.7830 Visit Site