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Ventilation repair

When the system is noisy, draughty or has stopped, we find the fault and fix it. Whatever the make, and whoever installed it.

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We find the cause, not just the symptom

A fan that has stopped is easy to spot. The cause can be anything from a worn belt or a failed bearing to a control fault or a frequency converter that has gone down. Replace only the broken part and the fault often comes back.

Our technicians are balancing specialists and know these systems from the inside. We measure and troubleshoot until we find the real cause. Once the system runs again, we check that it delivers the right airflows.

What we offer

  • Troubleshooting

    Systematic fault finding on the unit, controls and ducts, so we repair the right thing.

  • Fans and motors

    Replacement of motors, bearings, belts and impellers on most makes.

  • Controls and frequency converters

    Fault finding and replacement of frequency converters, sensors, damper actuators and controllers.

  • Heat recovery

    Repair of rotary wheels, plate exchangers and coils that do not deliver the heat they should.

  • Air conditioning and cooling

    Troubleshooting and repair of air conditioning that does not cool, is noisy or drips.

  • Emergency help around the clock

    24-hour emergency response when ventilation or cooling fails and operations are at risk.

IM Service technicians lifting a fan motor into place

Common faults we fix

Many calls are about the same symptoms:

The system is noisy or vibrates There are draughts, or the air is stale and stuffy The unit stops or raises an alarm Heat recovery does not work, and it is cold in winter Air conditioning does not cool or drips Energy use has risen for no clear reason

Each symptom can have several causes. That is why we always troubleshoot before we replace parts.

Whatever the make and installer

We repair systems from the common makes, including when another company installed them. That also applies if the original installer no longer exists.

After the repair you can get a service agreement, so the system is inspected on a fixed schedule and the risk of new breakdowns falls. If the unit is so worn that repair no longer pays, we will tell you and give you a quote for a replacement.

Frequently asked questions

Can you repair a system another company installed?

Yes. We repair and service systems of any make, whoever installed them.

Can you come out urgently?

Yes. We have 24-hour emergency response when ventilation or cooling fails.

Is it worth repairing an old system?

Often, yes. Many faults can be fixed by replacing individual parts. If the unit is so worn that repairs no longer make sense, you get an honest estimate of what a replacement costs and what it saves in energy.

Do you repair air conditioning too?

Yes. We troubleshoot and repair air conditioning and cooling systems for businesses.

Has your system stopped?

Call +45 4377 0035 or send us a message. For urgent faults we have emergency response around the clock.