Cleaning your MVHR in Luxembourg: the complete 2026 guide

A regularly serviced ventilation system uses less energy, lasts longer and preserves indoor air quality. In Luxembourg, where MVHR has become standard in new builds, this maintenance is no longer optional.

Why is cleaning your MVHR essential in Luxembourg?

Luxembourg's climate, humid in winter, full of pollen in spring, loaded with fine particles in urban areas, puts heavy stress on ventilation systems. Filters fill quickly, vents get dirty, and a neglected system becomes counter-productive: it spreads dust, allergens and sometimes mould throughout the home.

Beyond health, energy is also at stake. A clogged unit forces the motor to compensate, increasing power consumption and wearing out mechanical parts. On installations left unserviced for several years, our field measurements show significant overconsumption and premature wear.

How often should you clean a ventilation system?

Frequency depends on the component and installation type. Below are the 2026 recommendations aligned with NF DTU 68.3 and Luxembourg practice.

What are the steps of a professional MVHR cleaning?

A HUMINUS service follows a 5-phase protocol designed to address every critical point without unbalancing the system.

1. Initial inspection: endoscopic camera in the ducts, airflow measurement (hot-wire anemometer), before-photos.
2. Disassembly: vents, grilles, filters, exchanger. Everything is labelled for identical re-installation.
3. Cleaning: HEPA vacuuming, motorised duct brushing (80–200 mm), degreasing bath for metal vents, filter replacement.
4. Reassembly and balancing: repositioning, sealing check, room-by-room rebalancing.
5. Report: before/after measurements, endoscopic photos, recommendations and next visit planning.

How much does MVHR cleaning cost in Luxembourg in 2026?

Prices in Luxembourg in 2026 vary by system complexity and home size. Below are HUMINUS-observed ranges over the past 12 months.

Single flow vs MVHR: what’s the difference?

Single-flow ventilation extracts stale air; fresh air enters through facade vents. MVHR mechanically supplies filtered fresh air and recovers up to 90 % of the heat from extracted air via an exchanger. Higher performance, and stricter maintenance.

Mistakes to avoid

• Using a domestic vacuum without HEPA, it spreads fine particles back into the air.
• Putting filters in the dishwasher: heat warps the mesh and destroys efficiency.
• Blocking a noisy vent, it unbalances the entire system.
• Forgetting the ducts: 80 % of real fouling hides there.
• Postponing service beyond 24 months, restoration cost then doubles.

Why choose HUMINUS to clean your MVHR?

HUMINUS is the Luxembourg specialist: experienced technicians, professional gear (rotobrushes, HD endoscopes, HEPA H13 vacuums), detailed reports. Nationwide service, transparent quote.