Since 1999, DG Frondorf and Associates of Cincinnati, OH has helped area construction companies generate accurate project estimates and related technical services, helping to support these already overworked contractor staffs, allowing them to focus on the hands-on work they specialize in. DGFA specializes in civil engineering and sitework cost consulting; CSI Divisions 2, 3, 31-33 and DOT/heavy-highway projects. We serve general and subcontractors, architects, engineering firms, owners, construction management firms, property managers, public agencies, and other consultants.


  • Site Clearing and Removals
  • Site and Building Demolition
  • Earthwork Grading
  • Undercutting and Soil Stabilization
  • Subgrade Preparation
  • Site Utilities
  • Trenching and Backfill
  • Pavements
  • Landscaping
  • Retaining Walls
  • Foundations
  • Roadways & Public Works Projects


  • Cost Estimating
  • Takeoffs and Quantity Surveys
  • Unit Pricing
  • Design Development Budgeting
  • Sitework Estimating
  • Scope of Work Review
  • Earthwork Grading Estimating
  • Cut and Fill Analysis