About ADS

Allegheny Design Services (ADS), established in 2002, specializes in many different areas of Structural and MEP engineering. We provide reliable, responsible services of building system design and analysis.

We are the link between owners, architects, and contractors. We help the architect realize their vision while providing simple, buildable solutions to the contractor. We pride ourselves in offering timely solutions to complicated engineering issues, whether structural, mechanical, electrical, or plumbing in nature.

ADS utilizes state of the art software including BIM (Building Information Modeling)AutoCADAutoCAD MEPAutoDesk Revit StructureAutoDesk Revit MEPSpeclink and RAM Structural System.


Over 80% of our clients are repeat customers.  Some of our clients have included:

  • Bombardier Aerospace—Bridgeport, WV
  • Brownsville Marine Products—Brownsville, PA
  • Davis & Elkins College—Elkins, WV
  • Dominion Resources Services, Inc.—Clarksburg, WV
  • Fairmont State University—Fairmont, WV
  • Glade Springs Resort—Daniels, WV
  • Monongalia General Hospital—Morgantown, WV
  • Mylan Pharmaceuticals—Morgantown, WV
  • United Hospital Center—Clarksburg, WV
  • West Virginia University—Morgantown, WV
  • WV Division of Natural Resources Parks and Recreation Section—Charleston, WV
  • WVU Hospitals, Inc.—Morgantown, WV

David R. Simpson, P.E., SECB, MBA
President/Principal Engineer

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Jason D. Robinson, PE
Vice President/Principal

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Gary M. (Mike) Chancey, PE, LEED AP
MEP Dept. Manager

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David A. Cotton, PE, LEED AP BD+C

Senior Mechanical Engineer/Project Manager

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Robin Basnett
Office Manager

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Suzy Johnson
Administrative Assistant

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Alexander (Alex) L. Clarkson, P.E.
Associate Engineer

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Bryan R. Gallion, EIT

Jr. Structural Engineer

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Jason Conrad
Engineering Technician

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Adam James, EIT
Jr. Mechanical Engineer

Brady R. Hillegas, EIT
Jr. Structural Engineer

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