Crown molding installation cost in Luxembourg (2026)

What the per-metre figure buys:

• Mechanical fixing with concealed screws or structural adhesive (Illbruck, NMC Adefix)
• Mitre cuts to 45° at inside and outside corners
• Joint filler between lengths, sanded flat
• Primer coat on bare polyurethane or plaster before final paint
• Masking and protection of floors and walls
• Dust clean-up and off-site disposal

A €1 400 HT quote at TVA 17 % invoices at €1 638 TTC; bundled in a logement.lu renovation on a primary residence > 2 years at 3 %, the total drops to €1 442 TTC — a €196 saving on the same work.

The five-fold spread reflects four concrete factors, not brand mark-up.

The four drivers:

• Material density and weight. A 100 g/ml polystyrene cove installs with a tube of adhesive. A 1,6 kg/ml solid plaster cornice requires two hands, a pre-drilled substrate, sometimes a temporary brace for 24 h until the adhesive sets. The installation labour is 3× for plaster.
• Profile depth and relief. A simple 70 mm plain cove has three mitre faces per corner. A 140 mm egg-and-dart profile has up to 11 mitre faces and ornamentation lines that must line up corner-to-corner. The cutting and fitting time per corner goes from 6 minutes to 35 minutes.
• Ceiling substrate. A flat painted plasterboard ceiling accepts adhesive in one application. A textured artex ceiling must be scraped smooth along the adhesive band. A curved ceiling or a coffered ceiling needs scribing or custom-cut blocks. Each substrate condition adds €3–€8/ml.
• LED channel integration. A polyurethane profile with integrated indirect LED trough (Orac Axxent C357 or NMC Arstyl Z11) requires a 24 V driver, warm-white LED strip 3000 K CRI 90, a dimmable wall switch and cable routing from the nearest wall junction. The electrical line alone adds €180–€350 per room for a declared electrician.

Hidden lines on a high-end quote:

• Ceiling prep before adhesive. Sanding, cleaning, priming — €3–€6/ml
• Custom colour match. Tinting the final paint to match an existing wall — €120–€250 lump
• Joint reinforcement tape. On plaster cornice at end butts — €4–€7/ml
• Delivery of long pieces. Lengths over 2,5 m need a roof-rack vehicle — €60–€180 delivery surcharge
• Plasterboard ceiling reinforcement. If the ceiling is 9 mm plasterboard under an older roof, a 12,5 mm overlay may be needed before fixing — €28–€45/m² of ceiling

Luxembourg's housing stock contains a meaningful share of pre-1940 buildings in Limpertsberg, Belair and the historic centre, where original plaster cornices form part of the protected fabric. Replacing a damaged section with polyurethane is visually wrong — the depth of relief, the shadow line and the paint response differ, and the Service des sites et monuments nationaux can require restoration à l'identique.

The decision tree for heritage work:

• Minor damage, crack or water stain on an intact cornice: in-place repair by a staffeur at €80–€180/linear metre of damaged section, matching the profile with a sculpted insert
• Section missing, adjacent lengths intact: cast replacement from a silicone impression of the intact profile, €120–€220/ml including the pattern-making fee
• Whole room cornice missing but heritage listing requires period-correct: atelier produces a new run from a scaled drawing or a photo of the original, hand-cast in reinforced plaster, €150–€280/ml
• Décor painted ornamentation (faux-marble, gold leaf) on the cornice: specialist décorateur, €80–€220/ml on top of the plaster cost

What the SSMN (Service des sites et monuments nationaux) checks:

• The profile matches the period (neoclassical, Art Nouveau, Art Deco each has a vocabulary)
• The material is plaster, not polyurethane, where the original was plaster
• The paint is breathable silicate or lime-based, not vinyl — vinyl paint on lime plaster peels
• The work is documented with before/after photos and a retention sample for the dossier

Practical pricing for heritage:

Heritage work qualifies for the 3 % TVA rate systematically when the property is in a PAP QE (quartier existant) protected zone and the owner files the logement.lu certificate. The SSMN dossier also unlocks a cultural heritage subsidy of up to €25 000 per project on listed buildings.

TVA on crown molding follows the general rule for interior fit-out in Luxembourg: 17 % as stand-alone retrofit, 3 % when bundled in a logement.lu-certified renovation on a primary residence older than 2 years. Heritage plaster restoration on a listed building qualifies for 3 % almost automatically.

Rate cases in practice:

• Adding cornice to an existing ceiling in a lived-in primary residence: 17 % stand-alone; 3 % if the room is also being repainted, replastered or has other habitability works on the same invoice, with logement.lu certificate filed before works
• Whole apartment new fit-out with cornice as part of the finish package: 3 % on the combined invoice
• Heritage restoration in a PAP QE protected zone: 3 % systematically when the SSMN dossier is filed
• Second home, rental, new-build < 2 years: 17 %

Rate comparison on a €2 400 net cornice + paint package:

Saving of €336 on the same job. Filing the logement.lu certificate takes 30 minutes and returns the certificate within 4 to 8 weeks — budget the filing at project start, not at invoice time.

The SSMN heritage pathway can additionally unlock a subsidy of up to 25 % of the eligible cost, capped at €25 000 per project, for certified restoration work on a listed façade or interior feature.

Three quotes on the same room can diverge by 40 % because metre counts, mitre counts and paint inclusion vary firm by firm. A one-page brief solves this.

The six checks:

• Profile reference. Not "crown molding" — the supplier and the exact product code (Orac C204 Luxxus, NMC Arstyl C16, Atelier Moulage Luxembourg model). Include the dimensions in mm.
• Metre count and corners. Measured length in ml and number of internal plus external corners. A dry-run tape measurement by each firm on-site is the only reliable path.
• Material specification. Polystyrene density (17 kg/m³ budget, 25 kg/m³ standard, 38 kg/m³ premium); polyurethane density (250 g/dm³ standard, 350 g/dm³ premium); plaster mix and reinforcement (fibreglass scrim).
• Fixing method. Structural adhesive alone (Illbruck, NMC Adefix) for light profiles under 1 kg/ml; adhesive plus hidden screws for heavier profiles; mechanical anchoring on concrete slabs.
• Paint line included or separate. Confirm two coats at the wall-ceiling junction, colour and brand specified.
• LED integration. Driver location, strip spec, dimmer type, responsible party (same firm or separate electrician).

A clean briefing pack:

• Room plan with linear metres and corner count
• Ceiling height and ceiling substrate (plasterboard, plaster, concrete)
• Preferred material family and desired appearance reference images
• LED intention yes/no
• Paint colour reference (RAL or NCS code)
• TVA position (stand-alone or bundled, logement.lu certificate reference)

Three quotes on the same pack land within ±12 %. A wider spread means either a different material class is being substituted, or corner labour is being under-counted.