888-797-4746 
President & Principal Engineer
Sr. Mechanical/Electrical Engineer
BSET 1980, University of Maryland, College of Engineering
Licensed in:
Pennsylvania
Virginia
Maryland
New Jersey
West Virginia
New York
District of Columbia
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); and, Building Official and Codes Administrators International (BOCA).
Over 1,400 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.
Mechanical / Electrical / Plumbing
Senior Designer
Associate of Science Degree, Hagerstown Jr. College, 1994 Mechanical Engineering Technology (MET)
Air Conditioning Contractors of America (ACCA) Certification, 1995
Mr. Hose serves as an integral part of our systems design team. Working as a Project Manager, his involvement includes direct oversight of the creation of working construction documents in addition to mechanical, plumbing, electrical, power and lighting systems design. To keep current on the latest improvements and trends in technology, Mr. Hose maintains on-going working relationships with manufacturers' representatives.
Mechanical / Electrical / Plumbing
Senior Designer
Mr. Keller has been with L.S. Grim for over seven years and is currently working towards a degree in Electrical Engineering. Additional training includes:
Civil Engineer
B.S. Civil Engineering, Virginia Military Institute, 1984
Erosion & Sediment Control Training Program, MD, 2002
Mr. Winebrenner brings over twenty-one years of experience to his position with L.S. Grim, overseeing the civil engineering aspect of our firm.
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.
Mechanical / Electrical / Plumbing
Manager, Field Services Division
RETS Technical Training Center, Baltimore, MD, 1994
Architectural and Electro-Mechanical Engineering Drafting with CADD
Nathan has been with L.S Grim for ten years 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 will be handling quality control issues and assisting the contractor in resolving RFI’s quickly and efficiently in the field. Once projects have been designed and bid and shop drawings have been approved, Nathan will handle the day-to-day RFI’s and field inspections for our various projects.