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Property Diagnostics, Inc.

P.O. Box 3453

Crofton, MD 21114



William D. Grimes, SE, NSE
CFC Certified


William Grimes, for more than thirty years, has evaluated multi-family and commercial properties.  Mr. Grimes has developed and instructed engineers' courses in boilers, electricity, HVAC systems, energy conservation, pneumatics, and water treatment.  Mr. Grimes is a licensed stationary engineer who, in addition to his responsibilities as President of Property Diagnostics, Inc:

  • Conducts and directs field evaluations of multi-family and commercial properties

  • Conducts and reviews retained engineering services

  • Troubleshoots building systems

  • Performs energy audits and assists in cost-reduction planning

  • Develops and reviews building systems' operating budgets

  • Provides technical training for building engineers

  • Assists in the development, implementation, and maintenance of preventive maintenance programs

  • Evaluates the technical capabilities of on-site maintenance personnel

  • Determines cost estimates for repair and replacement reserve schedules


Mr. Grimes is a current member of the

Washington Metropolitan Chapter Community Associates Institute


Mr. Grimes was a past vice president of the

National Association of Power Engineers


Mr. Grimes was a past member of the

Property Management Association of Metropolitan Washington


Thomas G. Hackshaw, PE, CGD



  • Maryland State Master Mechanic, District of Columbia Unlimited Master Mechanic

  • District of Columbia Master Gasfitter, Virginia State Master Gasfitter

  • Virginia State Class A Contractor


Mr. Hackshaw was a past president of

Air Conditioning Contractors of America, National Capitol Chapter


Mr. Hackshaw was a past president of the

Metropolitan Washington Heat Pump Association


Jack Grimes, PRA, RS


  • Professional Reserve Analyst designation through APRA

  • Reserve Specialist designation through CAI

  • Performed over 300 Reserve Studies 

  • Has over 10 years of experience in construction management

  • Studied at Tulane University


Mr. Grimes is a current member of the

Washington Metropolitan Chapter Community Associates Institute