- Heating, Ventilation, and Air Conditioning
- Industrial Air Quality Assessment
- Energy Management/Conservation
- Smoke Control Systems
- Steam Generation/Distribution
- Thermal Storage
- Clean Rooms
- Piping Distribution
- Process Piping
- Cogeneration
- High Temperature/Pressure District Systems
- Code Analysis
- Cost Estimating
- Life Cycle Cost Analysis
- Building Energy Modeling
- Central Energy Plants