Professional Ventilation Cleaning & Repair in Ireland

Before the visit, we confirm your ventilation system type — for example, Vent Axia, Zehnder, Komfovent, Domus or other brands. We collect key details such as installation date, duct layout, and filter type.
You’ll receive a short pre-service checklist to help us prepare for the inspection. As a result, we arrive ready with the correct tools, filters, and documentation.

Upon arrival, our technician isolates power and confirms that the unit is safe to service. We check all electrical connections, cable runs, and mounting points.
Next, we examine every ventilation duct for loose joints, crushed sections, or missing insulation. In MVHR systems, we ensure warm-air ducts are insulated properly.
Additionally, we test the condensate drain for correct trapping and flow. We also inspect silencers, plenum boxes, and air valves for wear, ensuring nothing restricts airflow.

After the safety check, we start cleaning. We always clean the heat exchanger according to the manufacturer’s guidelines. To protect delicate coatings, we use only non-harmful, approved cleaning agents, soft brush and rinse with clean water to remove all residues. After cleaning, we position a portable fan to direct airflow onto the heat exchanger. This method accelerates drying and ensures the component is reinstalled following best practice.
The drying phase typically takes a few hours. During that time, we continue servicing the rest of the unit — cleaning fans, sensors, and the internal casing, inspecting ventilation ducts for leaks, and wiping plenum boxes and air valves. Once the heat exchanger is fully dry, we reassemble the system, test fan speeds, verify airflow balance, and confirm safe operation before completing your ventilation cleaning report.

Once cleaning is complete, we measure airflows at every grille using calibrated instruments. We compare readings with design data and adjust dampers for balance.
Furthermore, we test all speed settings — trickle, normal, and boost — to confirm smooth transitions.
We also verify humidity, CO₂, and light sensors, making sure they activate and reset correctly. If we notice unusual noise or vibration, we fine-tune the system before moving forward.

Next, we validate system performance. We log fan speeds, power consumption, and all airflow readings. We confirm that measured results meet TGD Part F and Part L targets.
Moreover, we check boost duration timers and linked controls for responsiveness. This ensures your system remains compliant, efficient, and fully documented.

We then evaluate comfort. Our technician listens for humming, rattling, or air turbulence coming from the ventilation ducts.
We check silencer placement, duct insulation, and fan mounting to minimise noise transfer.
If noise levels exceed the recommended 30 dB(A) for habitable rooms, we advise possible solutions to address the issue.

Lastly, we reassemble the unit, tidy the workspace, and run a final functionality check. We review all findings with you and explain filter replacement intervals, boost-control use, and service frequency.
You receive a digital Ventilation Performance Report that includes airflow readings, photos, and recommendations.
In summary, this proactive ventilation servicing process keeps every vent, heat-recovery unit, and ventilation duct operating safely, efficiently, and in full alignment with Irish standards.