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Give ventilation boxes a second life

Raw materials are not infinite, and the impact of CO₂ emissions is becoming increasingly apparent. That is why we at Interduct are fully committed to sustainability. Not only within our own business operations, but also in the products and services we provide. Together, we are making ventilation smarter, more sustainable, and fully circular.
Our goal is clear: to be completely carbon neutral by 2040. An important step in this direction is the reuse of existing ventilation systems. With remanufactured ventilation boxes and parts, we save raw materials, energy and carbon dioxide – without compromising on quality.
VSK+E 2026 Awards

Remanufactured ventilation units

Proud. First of all because our remanufactured ventilation products and units contribute to a circular world, but also because of the recognition we received during the VSK+E. We were awarded both the jury prize and the audience prize. This is a wonderful confirmation that remanufacturing is being recognized and that we are on the right track.

Want to know more about this recognition and our innovation?

View offer Return ventilation boxes
Why choose remanufactured?

The advantages at a glance:

  • Sustainable
    Up to 80% reduction in CO₂ emissions and raw material consumption.
  • Affordable
    Up to 30% cheaper than new.
  • Reliable
    Fully tested and supplied with up to 5 years' warranty.
  • Equivalent or better quality
    Thanks to updated components and optimised software.
  • Circular economy
    Meet increasingly stringent sustainability targets within projects.
  • Completely taken care of
    We will collect the old units from you – no extra work or costs.
Satisfied customers

Read more

Remanufacturing in practice

Remanufactured ventilatiebox Itho Daalderop

Old ventilation boxes?

We'll pick them up!

Do you have old or defective ventilation boxes lying around after maintenance, renovation or demolition work? Don't let them disappear into the skip – we will collect them from you free of charge. How it works:

  1. Simply let us know which boxes you have.

  2. We will schedule a collection time.

  3. The units will be transported to our refurbishment location.

  4. Suitable parts will be given a second life, including a full quality check.

  5. You will benefit from the cashback promotion*.

*You will receive more information after submitting your request.

Submit an application
Some of the brands

Heat recovery units, ventilation boxes or roof fans

Brink
Duco
Itho Daalderop
Orcon
Zehnder

What do we do with the collected boxes?

Within the Interduct network, we collect old ventilation boxes and units, completely overhaul them and reintroduce them to the market as remanufactured products. The units are:

  • cleaned;

  • fitted with renewed or optimised parts;

  • tested according to factory standards;

  • and packaged as new with a warranty.

The result: a circular product that is as reliable, but with a much lower carbon footprint.

Projects involving remanufactured products

Project Haarlem
Haarlem
Vondelweg en Roerdompstraat
Project Plantage Beverwijk
Beverwijk
Plantage
Registration form

Return old ventilation boxes and receive compensation

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