M/E/P/S Engineering

Our engineers take a thorough approach to evaluating the unique MEPS requirements associated with each project. Ensuring the correct level of control to heat and cool a building, providing electrical service supporting current and future operations, and ensuring the appropriate level of fire protection we design systems that are engineered within the context of the project. We understand that each client has unique system needs and preferences and LDG knows how to accommodate them.


  • Boiler and chiller plants
  • Variable primary pumping systems
  • Primary/secondary pumping systems
  • Building management systems (BMS)
  • Control systems
  • Energy recovery systems
  • Building automation system (BAS)
  • Dedicated exhaust systems
  • Ground source heat pump systems
  • Ventilation systems
  • Dedicated outside air systems (DOAS)
  • Variable refrigerant flow systems (VRF)
  • Ductwork designs
  • Codes/standards evaluations and reviews


  • Alternative power systems
  • Arc Flash Studies
  • Codes/Standards Evaluations and Reviews
  • Fire alarm systems
  • Life safety systems
  • Telecommunication systems
  • Specialty grounding systems
  • Interior & exterior lighting systems
  • Lightning protection systems
  • Medium voltage distribution systems
  • Motor control systems
  • Power distribution systems
  • SCADA systems
  • Methane detection systems


  • Domestic waste and vent systems
  • Domestic cold & hot water distribution systems
  • Domestic water heating and storage
  • Domestic water softening and filtration systems
  • Compressed air systems
  • Codes/standards evaluations and review

Structural Engineering

The structural design of any building or facility requires evaluating the intended use of the building and considering details like floor loads, vibrations, seismic activity, equipment movement, the amount of required interior open space, and the spacing between columns. Our structural engineers address the client’s present needs as well as taking into account any future facility expansion. From there, LDG’s structural engineers work toward an optimal balance between technical function and economic impact. Additionally, LDG’s expertise with all types of building construction methods as well as pre-engineered metal buildings, tilt-up, modular, and pre-fabricated construction allows us to assist clients in selecting the construction method best suited for their schedule and budget.

  • Vertical construction
  • Tilt-up construction
  • Offsite construction/modular
  • Water/Wastewater structures or facilities
  • Foundations
  • Specialized foundation design
  • Noise walls
  • Retaining walls
  • Low-rise building design
  • Building component design
  • Remodeling/retrofit support
  • Structural condition assessment
  • Demolition support
News & Insights
News & Insights
LDG Promotes Stefanie English to Director of Engineering
Larson Design Group Announces Addition of Oklahoma City Engineering Firm ZRHD to Strengthen Federal Market Offerings
Larson Design Group Announces Addition of LWPB as New Subsidiary to Expand Firm’s Architecture and Federal Expertise

WILLIAMSPORT, PA – Larson Design Group (LDG), an award-winning, employee-owned national architecture, engineering, and consulting firm, is pleased to announce the promotion of Stefanie Eng...

Larson Design Group (LDG), a leading national architecture, engineering and professional consulting firm, announced that ZRHD – an engineering consulting firm in Oklahoma City with high-en...

By Joining Forces with Oklahoma-based LWPB Inc.