Duct cleaning cost in Luxembourg (2026)

Line items in a standard package:

• Full duct network scrubbing (rotating brush + HEPA vacuum)
• Heat exchanger clean-down (on balanced MVHR only)
• Filter replacement with manufacturer reference
• Grille and diffuser wash
• Pre and post measurement of airflow at each vent
• Photo log and air-quality report

Price drivers short-list: house size, MVHR vs MEV, duct length and accessibility, filter grade (F7/F8/F9), contamination level, grille count, syndic or private owner.

Frequency typical: MVHR every 3–5 years for the duct, annually for filter and visual check. MEV every 4–6 years. Passive-house certification often requires a documented 3-year cycle.

• System type. MVHR requires heat-exchanger service, filter change and both supply and extract network cleaning; MEV only addresses extract — MVHR is 30–60 % more expensive for the same vent count.
• Vent count. Each extra grille adds 15–25 minutes of labour (detach, clean, refit, test).
• Duct length and geometry. Flexible-duct systems longer than 8 m or with more than two tight bends per branch slow the brush and may require multiple access points.
• Contamination level. First cleaning after 8–12 years of neglect accumulates 3–5× more dust, with possible microbial growth requiring antimicrobial fogging (€120–€280 extra). Regular maintenance cycles keep contamination low.
• Filter grade. F7+F8 filter pair (€45–€85 each for genuine units in Zehnder, Helios, Vaillant, Paul) vs F7+G4 (€25–€45) depending on specification.
• Access. Attic-mounted MVHR with limited crawl space adds 30–50 % to labour. Ground-floor technical room is the cheapest.
• Building type. Newbuild (since 2015, passive or near-passive certified): system is clean and standardised, faster; older retrofit: variable, slower.

A 4-bedroom MVHR house with 10 vents, light contamination, F7/F8 filters: full clean with fogging and filter change, 6 hours labour for two technicians + materials, ~€920 TTC. In line with the €700–€1 100 band.

Standard inclusions:

• Pre-visit inspection with system diagnosis
• Full duct scrubbing (rotating brush) with HEPA-filtered vacuum
• Supply and extract network (for MVHR)
• Heat-exchanger clean-down and visual inspection (for MVHR)
• Filter replacement with manufacturer-specified grade
• Grille and diffuser wash (all units)
• Airflow measurement at each vent before and after
• Antimicrobial fogging only where contamination warrants
• Photo log and written post-cleaning report

Usually excluded — separate lines:

• Duct repair and replacement — €45–€180/linear metre on bespoke rigid duct
• Broken grille or diffuser replacement — €25–€80/unit
• Heat-exchanger replacement — €180–€480 (rare, lifetime 20+ years)
• Chimney flue or boiler flue cleaning — separate ramoneur trade
• Kitchen-hood degreasing — €300–€900 per hood
• Air-tightness retest after the service — €250–€450
• Deep disinfection after water-damage event — negotiated

A devis lacking vent count, filter reference or before/after airflow measurement is incomplete — ask for the revision before paying any deposit.

Duct cleaning in Luxembourg sits at the intersection of the cleaning trade (Chambre des Métiers) and HVAC maintenance (Ministère de l'Économie, via specialised Autorisation d'établissement). A declared operator holds the authorisation and ITM registration.

Regulation:

• Residential MVHR has no statutory cleaning schedule at the national level, but manufacturer warranty conditions (Zehnder, Paul, Helios) require documented filter changes and duct inspection every 3–5 years to maintain warranty
• Commercial and collective housing falls under NF EN 15780 / EN 15239 equivalents and the ITM workplace air-quality guidance — annual inspection, 3-yearly cleaning on visible contamination
• Passive-house certification (Passivhaus Institut) requires documented cleaning per the manufacturer's cycle

TVA:

• Standard 17 % on residential duct cleaning
• Primary-residence renovation labour at 3 % super-reduced is not typically applicable — cleaning is a service, not a renovation work
• Syndic-ordered works on collective risers are invoiced to the syndic with the collective TVA at 17 %

Syndic: in a copropriété, the owner cannot order a riser-column cleaning alone. The syndic proposes the works at the annual general meeting (AGM), which votes the budget. Individual owners can clean only the portion inside their apartment walls — below the coupling to the riser. In new-build passive apartments with individual MVHR inside each unit, the owner is autonomous.

Communes active: cleaning businesses with the specialisation operate across Luxembourg-Ville, Esch-sur-Alzette, Differdange, Dudelange, Mersch, Diekirch, Wiltz. Travel supplement 25–60 € beyond 30 km from base.

Brief pack:

• System type (MVHR, MEV), manufacturer and model (Zehnder ComfoAir, Paul Novus, Helios KWL)
• Vent count and age of last cleaning
• Photos of accessible ducts and filter housing
• Desired date window

Six comparison checks:

• Airflow measurement. Before/after measured at each vent, numeric report, documented in the devis
• Brush and vacuum specification. Rotating brush adjustable to duct diameter, HEPA H13 vacuum minimum
• Filter reference. Manufacturer OEM or equivalent certified spec (e.g. Zehnder ComfoAir 350 F7/F8 pair), no generic "F7 filter"
• Anti-microbial decision. Used only if contamination found — otherwise a sales add-on
• Workmanship warranty. 12 months minimum on the cleaning result; no re-contamination guaranteed
• Invoicing. Autorisation d'établissement number on the devis and invoice, 17 % TVA

Red flags:

• No airflow measurement offered
• Claim of "antimicrobial fogging" at every job regardless of contamination — upsell
• No manufacturer reference for filter replacement
• Quote below €400 on a 3+ bedroom MVHR — skips half the work
• Pre-payment above 30 % before the visit
• No post-cleaning photo and report
• Cash-only — undeclared
• Claim of health benefits not backed by specific contamination evidence — marketing

Three devis on a shared brief usually cluster ±15 %. Filter change should be a separate transparent line; re-contamination of a duct in less than 18 months following a proper cleaning is evidence of a short-cut.