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Your trusted partner since 1983

Rosenberg NL (Fans & Climate Technology) started in 1983 with a programme of variable speed roof, centrifugal and axial fans. After the successful introduction of composite roof fans, we proceeded to develop and produce a fully composite air handling unit. Thanks to high demand from our customers, the Liberty composite air handling unit has been our largest product line for a long time. The product line is Eurovent certified.


In addition to product quality, we pay a lot of attention to the quality of our services. We have our own service department. In addition, our knowledge centre has a combined industry experience of 100 years, which means you can contact our staff there for difficult questions and technical design and installation advice. Our company is ISO 9001 and VCA certified.

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Our values

We want to inspire, sustain and innovate the air treatment market – from supplier, installer, consultant to end user – with our composite air treatment units boasting the lowest conceivable operating costs.

We make high quality affordable by making more with less. Our composite air handling units help bring a sustainable future closer.

Our systems are made for people by people. We invest in the well-being and job satisfaction of our employees. Satisfied employees make for satisfied customers.

Continuous innovation of our products in terms of energy saving, corrosion resistance and service means we are able to offer and further develop ready-made concepts and custom-built solutions. We use our customers' experiences and the 100 years of our employees' collective industry experience in our knowledge centre. Our Team is ready for you.

The objective of our Quality, Safety, Health and Environmental Policy is to ensure our products and services meet customer requirements and are in compliance with applicable regulations, guidelines, specifications and the applicable laws and regulations.


We push the boundaries through continuous innovation of our products regarding quality, regulation and energy saving. We will use our employees' high knowledge level and the feedback from our customers to further expand our services and offer complete turn-key concepts and custom-build solutions in the future.

overons hcgroep klikblok
Subsidiary of HC Groep

Indoor Climate Specialist

HC Groep: the Dutch indoor climate specialist

Kwaliteit en duurzaamheid
Quality & Durability

About sustainability

Composite: long lifespan with low maintenance costs

Service & Support

Aftersales services

Our technicians are available to answer your questions

onze klanten aan het woord
Client testimonials

What others say

Some comments of our valued customers...

It will only takes 5 minutes of your time

Quotation tool

Are you looking for the correct dimensions and pricing for your air handling units? Try our new Quotation Tool version || and find the answer you’re looking for in just 5 minutes.

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