- Niederlande
- Residential & Industrial Systems
- Battery Systems
- Charging Stations
- Inverters
- PV Systems
- Electricity
- Domotics
- Air Conditioning Systems
- Heat Exchangers
- Heat Pumps
- Solar Car ports
- Thermal Boilers
- Heat Pump Boilers

Technische Installatie Bureau H.C. Doornhein is a traditional family-owned company with over five decades of experience and craftsmanship in technical installations. Our services include electrical installations, solar panels, camera systems, air conditioning systems, charging stations, heat pumps, heat pump boilers, electrical systems, central heating, and sanitary installations.
In addition, we are certified as a Solar Topfitter, Solar Specialist, Storage Specialist, and hold certifications for BRL6000-25 and F-Gases – Stek.