Fagerstrom Engineering, Inc. began in 1976 with the formation of Lars Fagerstrom Consulting Engineers in Walnut Creek, California. For over forty years the engineers of FE have served the mechanical and electrical engineering needs of California and abroad, with projects in seven of the United States, European, Middle Eastern, and South American countries. We thank you for your interest and the opportunity to present our services and experience.
Lars O. Fagerstrom, P.E.
Principal Engineer, Chief Mechanical

Lars Fagerstrom offers over forty years of professional experience in project management and design of mechanical and electrical systems, engineering investigations, technical studies, and service as an expert technical witness.
Mr. Fagerstrom received his Engineering Degree in Mechanical Engineering from the Stockholm Institute of Technology in Stockholm, Sweden, and is a registered professional engineer in Mechanical, Electrical, and Control Systems engineering.
Specialties
- Chilled Water Systems
- Air Conditioning Systems
- Boiler Plants
- Water Treatment
- Hot Water Systems
- Steam – High and Low Pressure
- Industrial Ventilation
- Energy Auditing
- Industrial Piping
- Heat Rejection
- Pumping Stations
- Waste Water Treatment
- Plumbing
- Electrical Power Systems
- Control Systems
- Energy Star Certification
Professional Registrations
- Mechanical Engineer #17103, State of California
- Electrical Engineer #9284, State of California
- Control Systems Engineer #4081, State of California
Professional Affiliations
- American Society of Heating, Regrigeration, and Air Conditioning Engineers (ASHRAE)
Lars M. Fagerstrom, MSW
Director of Human Resources, Project Engineer

Lars M. Fagerstrom offers over fifteen years of experience in design of electrical and mechanical systems related to heating, ventilation, and air conditioning systems, plumbing and piping, industrial control systems, PLC logic schemes and programming, and fire/life safety systems for a wide variety of building occupancies and AHJ jurisdictions, with particular expertise in hospital systems in California (OSHPD).
Specialties
- HMI Systems Design
- Electrical Control Panel Design
- C Programming
- Programmable Logic Control (PLC)
- HVAC Systems Design
- Ladder Logic
- Fire Alarm/Life Safety Systems
- Building Energy Calculations
- AutoCAD Expert
- VFD Systems Programming
- Logic algorithms and programming
- Industrial Process Control