- Oil furnace
- Air conditioning
- Geothermal heatpumps
- Mini split heatpumps and air conditioners
- Plumbing service and installation
- Electric water heaters
- Gas water heaters
- Heatpump water heaters
- Oil boilers
- Gas boilers
- High efficiency boiler systems
- Maintenance program (USA)
- Sell, install and service fireplace logs
- Gas line service and installation
- Ventilation systems
- Clean room ventilation systems
- Hvac and plumbing inspections