About
Founded in 1933, Hesi is a private headquartered in Heerlen, Nederland with approximately 50-200 employees specializing in Solar, Hydrogen, Energy Storage.
Hesi is a 90+ year-old Dutch company specializing in sustainable heating, cooling, and renewable energy solutions. Services include installation and maintenance of CV boilers (gas and heat pump), solar panel systems, air conditioning units, ventilation systems, smart thermostats, and home battery storage. The company operates as both a manufacturer and service provider, offering flexible rental and purchase options. Known for customer service excellence with 24-hour emergency support, STEK certification for safe installation, and partnerships with quality brands like Bosch and SMA. Operating from Heerlen with approximately 75 employees.
Headquarters
Heerlen, Nederland
Founded
1933
Employees
50-200
Company Type
Private
Business Models
Value Chain
Service Regions
Netherlands
Products
Solar Panels
Heat Pumps
Home Battery Storage
Air Conditioning Units
CV Boilers
Ventilation Systems
Smart Thermostats
Heat Pump Boilers
Certifications & Awards
Certifications
STEK
F-gassen BRL 100
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