How to choose a cleaning service in Luxembourg

Any firm invoicing cleaning services in Luxembourg must hold an autorisation d'établissement delivered by the Ministère des Classes moyennes after the Chambre des Métiers has reviewed professional qualification and integrity, and must be registered with Luxembourg Business Registers under a company number. Both entries are publicly searchable: the autorisation on cdm.lu or guichet.public.lu under 'Rechercher une autorisation d'établissement', the RCS on lbr.lu. Ask the cleaning firm for both numbers in writing, type them into the search tools, and verify three things — the company name matches the name on the quote, the authorised activity covers cleaning (the exact wording is 'nettoyage de bâtiments' or equivalent), and the entry is active rather than struck off. The check takes under three minutes and catches the bulk of problem providers in a single pass. A firm that answers the request with a personal name, a promise that the paperwork is in process, or an autorisation covering a different activity altogether — gardening, courier services, hospitality — is not a legal cleaning operator in Luxembourg, regardless of how helpful the sales conversation sounds. The Chambre des Métiers is explicit on the point: the autorisation is held by the company, not the individual, and an individual trading without a covering autorisation is working outside the law.

Every cleaner working in a Luxembourg home must be declared to the Centre commun de la sécurité sociale (CCSS). Declaration means the firm pays social contributions on the hours worked, the cleaner is covered by accident-at-work insurance, and the household escapes joint-and-several liability in the event of an ITM audit. Ask for the CCSS company number — the identifiant national — on the quote itself, alongside the autorisation d'établissement. A firm that employs declared staff publishes the number without hesitation; a firm that hedges, says the paperwork is handled at payroll stage, or insists that declaration is 'the cleaner's responsibility' is almost always outside the declared perimeter. The Inspection du travail et des mines (ITM) treats the household as a co-responsible party when undeclared work is proven on the premises: fines for travail au noir run into four figures per intervention, they apply to the client as well as the firm, and ignorance has not been a recognised defence since the 2023 enforcement tightening. On a weekly cadence the arithmetic is straightforward — eight to twelve euros per visit saved on an au-noir rate does not cover a single ITM fine, and the insurer of a declared firm pays claims that the individual au noir cannot.

The chèque-service accueil (CSA) is a Luxembourg subsidy administered by the Caisse pour l'avenir des enfants. It covers childcare, parental support and a narrow list of disability-aid services. It does not cover adult household cleaning — not weekly floor mopping, not bathroom descaling, not end-of-lease packages, not office cleaning. A cleaning firm that claims a blanket CSA rebate on a standard residential cleaning quote is either misinformed or using the acronym as a sales hook, and in both cases the quote is non-compliant — the CSA number cannot appear on an invoice for ineligible services without triggering a reimbursement demand when the CAE audits the file. If the cleaning scope legitimately includes a disability-aid component — assistance to a vulnerable adult, for example — the eligible portion must be isolated on a distinct invoice line, with a matching file number delivered by the CAE before the service is rendered. Any other configuration is not a discount, it is a misrepresentation. The correct response to a quote that advertises a 'chèque-service discount on weekly cleaning' is to ask for the CAE file reference in writing; nine times out of ten the firm walks away from the claim rather than put the file number on paper, which confirms the reference never existed.

The single question that tells you the most about a declared cleaning firm is not the hourly rate — it is what happens when your regular agent is on leave. A well-run operator names a substitute in advance, hands the replacement a written task sheet specific to your home, and sends a supervisor on the first visit to verify that the substitute has understood the scope and is respecting the usual product and equipment instructions. A poorly-run operator sends whoever is free that morning, with no briefing, no checklist and no supervision, and the first signal is a cleaning pattern that regresses when your regular agent is off for the summer or for maternity leave. Ask the firm to describe the substitution protocol in writing on the quote itself: the named backup where possible, the briefing document format, whether a supervisor attends the first replacement visit, and the escalation path if the scope slips. On long-term recurring contracts, also ask for an annual supervisor visit — an operational quality check that reviews the scope, collects client feedback and verifies that the cleaning matches what is being invoiced. Firms that publish this protocol are signalling back-office discipline; firms that handle substitution verbally are signalling the opposite, and the day your regular agent leaves the firm is the day the pattern shows.

Three product-and-equipment questions deserve a place on every quote. First, who supplies — on declared contracts, the firm provides cleaning products, cloths, mop heads and the vacuum cleaner by default, and the rate sits at the upper end of the range; a quote that shifts supply to the household ('bring your own products') should price at the lower end and say so explicitly. Second, eco-label status — firms that ship EU-Ecolabel-certified products on request are a meaningful quality signal, and the supplement over conventional products is rarely more than ten percent. Third, fragrances and allergens — cleaning products in scented formulations are a common trigger for asthmatic and atopic-dermatitis patients, and a firm that cannot provide a fragrance-free or hypoallergenic line on request is a poor fit for a household with a diagnosed sensitivity. Ask the firm for the product list in writing — brand and reference — and verify the safety data sheet on any product you are uncertain about. Equipment matters too: a professional vacuum with HEPA filtration is a different proposition from a consumer-grade unit, and end-of-lease packages should specify the equipment bracket. These questions are not cosmetic — they are the difference between a weekly cleaning that improves the household and one that triggers a respiratory episode six months in.

Handing a key to a cleaning firm is an act of trust that deserves a written protocol. A legitimate firm in Luxembourg stores client keys in a locked cabinet at its registered address, tags the key with a code — never the client address, which would turn a single cabinet breach into a systemic compromise — and photographs both the tag and the key on intake with a date-stamped log. Ask the firm for a written copy of its key policy before handing the key over: where the key is stored, who has access, what happens if the key is lost, and the return protocol when the contract ends. On termination, a compliant firm returns the key against a written receipt on the last working day and clears the cabinet entry in front of the client or a delegate. An operator that stores keys loose in a drawer, tags them with the apartment address, or cannot describe the retrieval process if the named agent leaves the firm is an operator whose keys go missing in a material fraction of engagements. The lock-change cost in Luxembourg-Ville runs €200 to €500 on a standard cylinder, and the insurer will refuse the claim if the protocol breach is on the client side. Never hand a key without a signed receipt, and never accept a verbal-only return on termination — that is the day the protocol is tested.

Cleaning contracts in Luxembourg come in three shapes and the wrong shape for the wrong engagement is a recurring source of disputes. A weekly or fortnightly recurring contract is a standard service agreement with a defined scope, a cadence, a per-visit or monthly price, and a notice period — typically one month on either side, longer on commercial contracts. A commande ouverte is a framework call-off arrangement where the client books hours on demand at an agreed hourly rate; it suits irregular cleaning needs and small offices but does not guarantee availability and should carry no exclusivity on either side. An end-of-lease package is a one-off deliverable against a written checklist — the document that the landlord or relocation agent provides — and the contract must reproduce the checklist verbatim as the scope, not summarise it. The single biggest source of end-of-lease disputes in Luxembourg is a cleaning firm that priced against a summary scope and was held to a checklist it never saw; insist on the checklist at the quote stage, not after. Every format must state a liability clause — the firm's public-liability insurer — and a notice period on recurring contracts. A contract without a written notice period is a contract the firm can terminate on forty-eight hours in peak season, leaving a household or small office scrambling at the worst possible moment.

A compliant Luxembourg cleaning quote separates the pricing logic — hourly rate, per-m² rate, or flat rate — from the total, and shows the 17 percent VAT on its own line rather than buried in a single grand total. Hourly quotes must state the minimum intervention time (two hours in the capital, three in the outer cantons is standard), the cadence, the team size and who supplies products. Per-m² quotes must state the surface considered, which rooms are in scope, and which items — interior windows, oven, inside cabinets — are supplement lines. Flat-rate quotes on end-of-lease or post-renovation work must attach the checklist as an annex. An hourly rate below €20 excluding VAT is almost certainly outside the declared perimeter — the CCSS employer contributions alone push the minimum sustainable net rate above that floor, and a quote that sits below it is not a bargain but a signal. The quote must list the firm's public-liability (RC exploitation) insurer with policy number and expiry date, and you should ask for a copy of the attestation before the first visit — not verbally, not by email paraphrase, but the insurer's own document. An operator that cannot produce the attestation within twenty-four hours is operating without cover, and the broken-vase phone call six months later will confirm it.

Six red flags recur on every problem cleaning engagement in Luxembourg. One — the firm refuses to issue a written devis, preferring verbal agreement on rate and scope. Two — the hourly rate is below €20 excluding VAT, which is mathematically incompatible with declared CCSS employment. Three — payment is demanded in cash or to a personal bank account rather than by bank transfer to a business account invoiced through a VAT number. Four — the firm declines to share its autorisation d'établissement number, RCS entry or CCSS identifier on request, or produces numbers that do not resolve on lbr.lu and cdm.lu. Five — the quote advertises a chèque-service discount on standard residential cleaning without a CAE file reference to back it up. Six — no public-liability attestation is produced within twenty-four hours of the request. Any single red flag is in principle recoverable with a conversation and a revised quote; two or more together is not, and the market has enough legitimate operators that walking away is cheap. The Inspection du travail et des mines enforces travail au noir proactively in cleaning precisely because household cleaning is the single most common undeclared service in Luxembourg; the fine architecture treats the household as a co-responsible party, not a victim, and ignorance is not a defence. Fynd.lu filters listings to firms with a current autorisation d'établissement and declared staff — the verification is done at listing, not left to the client in the moment.