Leslie S. Grim, PE, LEED AP, CxA
President & Principal Engineer
Sr. Mechanical/Electrical Engineer
BSET 1980, University of Maryland, College of Engineering
- New Jersey
- West Virginia
- New York
- District of Columbia
- North Carolina
Mr. Grim has a diverse background in the design of mechanical, plumbing, and electrical systems for commercial, educational, institutional, and industrial facilities for private and government clients. He is a member of: National Society of Professional Engineers (NSPE); American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE); National Council of Examiners for Engineering and Surveying (NCEES); National Fire Protection Association (NFPA); Building Official and Codes Administrators International (BOCA).
Mr. Grim is certifed by the US Green Building Council as a LEED AP and certified by ACG as a Commissioning Agent (CxA).
Over 2,100 mechanical, plumbing and electrical systems have been designed under Mr. Grim’s oversight (if not personally) since 1989. Please see SF 254 for additional project information.
David W. Hose
Chief Mechanical/Plumbing Designer
AS, Mechanical Engineering, Hagerstown Community College
David Hose has been with L.S. Grim Consulting Engineers since 1994 and has a deep understanding of mechanical/plumbing systems design. David began with L.S. Grim as an entry level drafter and has worked his way up to Chief Mechanical/Plumbing Designer. David is responsible for the day-to-day mechanical / plumbing design and production for the firm. He has direct oversight on the creation of the construction documents utilized on design projects. In addition, David serves as Team Captain for various mechanical-plumbing prime projects that require his higher level of expertise. David maintains his continuing education to stay knowledgeable in the latest trends and mechanical systems, equipment and designs.
Nathan P. Semler
Mechanical / Electrical / Plumbing
Chief Electrical Designer
RETS Technical Training Center, Baltimore, MD, 1994
Architectural and Electro-Mechanical Engineering Drafting with CADD
Nathan has been with L.S Grim since 1996 and has a deep background in design. He worked in our design department providing mechanical, electrical and plumbing system designs for various projects. Nathan comes from a construction background and has very good rapport with contractors. He is a great asset to us and our clients. Nathan is known for handling quality control issues and assisting the contractor in resolving RFI’s quickly and efficiently in the field.
Field Services Division
L.S. Grim Consulting Engineers has recently opened a Field Services Division. The Field Services Division will provide quality control inspection and construction management for private and public clients. This service will also provide supervision on the projects, review of mechanical, electrical and plumbing issues, and assisting the contractor in coordination so that the projects run smoothly. The owner receives good benefit for their construction dollar, in that any problems that occur are taken care of early and in the field before they become an issue after the fact.