Price by build-up type
| Build-up | Typical use | Installed price (TTC 17 %) |
|---|---|---|
| Simple single-sided (98 mm CW, one plasterboard side) | Dry walls, wardrobe back, temporary partition | €45–€55/m² |
| Double-sided, no insulation (98 mm CW, plasterboard both sides) | Interior partition, low acoustic demand | €52–€65/m² |
| Double-sided + 45 mm mineral wool | Interior partition, standard bedroom | €65–€80/m² |
| Double-sided + 60 mm mineral wool, acoustic | Bedroom wall, office privacy | €75–€92/m² |
| Fire-rated EI 30 (single layer fire plasterboard) | Residential compartment, 30-min fire | €68–€85/m² |
| Fire-rated EI 60 (double layer fire plasterboard) | Stairwell, service shaft, boiler room wall | €78–€95/m² |
| Wet-area waterproof (green-board or cement-board) | Bathroom wall, laundry | €72–€90/m² |
| Ceiling lining 1 layer + insulation | Old ceiling, acoustic + visual upgrade | €55–€72/m² |
| Ceiling lining 2 layers + insulation (fire or acoustic) | Apartment below apartment | €72–€95/m² |
| Wall lining on cold exterior wall (vapour barrier + insulation) | Energetic upgrade interior-side | €50–€70/m² |
| Curved partition | Design feature | €110–€180/m² |
| Niche, inset shelving integrated into partition | Design feature | €180–€320 per niche |
Typical build-up on a standard 10 cm bedroom partition:
- Metal track 98 mm + studs at 60 cm
- 45 mm mineral wool (acoustic rating 37 dB)
- Single plasterboard (12,5 mm) both sides
- Three-coat jointing, sanded to level Q3
- Ready-for-paint at ~€70/m²
Thickness breakdown of common partitions:
- 72 mm total (48 mm track + 12,5 mm board each side): light partition
- 98 mm total (standard bedroom, good acoustic)
- 148 mm total (double-board fire or acoustic stairwell)
Minimum fees:
- Small jobs under 15 m² may carry a site-day minimum of €550–€850 TTC regardless of m² calculation, to cover mobilisation costs and 1 day on site with two tradesmen.
Acoustic, fire and moisture — the three performance drivers
Build-up choice depends on the performance requirement. Specify before quoting.
Acoustic performance:
- Rw 37 dB (single 12,5 mm board each side, 45 mm mineral wool): baseline bedroom-to-bedroom privacy
- Rw 43 dB (single board each side, 70 mm mineral wool, decoupled studs): good for bedroom to living room
- Rw 50 dB (two boards each side, 70 mm mineral wool, staggered studs): apartment-to-apartment demising
- Rw 55+ dB (independent double-frame system with acoustic mats): recording studio, medical practice
Luxembourg residential rule of thumb:
- Bedroom-to-bedroom in same apartment: Rw ≥ 37 dB
- Apartment demising wall: Rw ≥ 55 dB (code — DICR 2016 thermal+acoustic regulation)
- Hotel room: Rw ≥ 52 dB
Fire performance:
- EI 30 (single 12,5 mm type F or GKF board each side): interior compartment in residential (30-min fire resistance)
- EI 60 (two 12,5 mm type F boards each side, double layer): stairwell, service shaft, boiler room
- EI 90 (specialised build-up, thicker boards): multi-storey shaft, technical room, commercial
Luxembourg code (DICR 2016, ITM):
- Stairwell enclosure in multi-storey residence: EI 60
- Lift shaft: EI 60
- Residential boiler room (>70 kW): EI 60 with EI 30 self-closing door
Moisture and splash zones:
- Standard bathroom wall (outside of splash zone): normal plasterboard acceptable, skimcoat to Q3
- Splash zone around shower or bath (up to 2 m height): green board (H2 rating) or cement board, tiled finish
- Laundry room with washing machine: green board minimum
- Swimming pool or sauna wall: cement board + waterproof membrane
Cost delta for upgrading from standard:
- Green board instead of standard plasterboard: +€4–€8/m²
- Cement board instead of standard: +€10–€18/m²
- Acoustic upgrade (70 mm wool + decoupled stud): +€15–€25/m²
- Fire upgrade from standard to EI 30: +€10–€18/m²
- Fire upgrade from EI 30 to EI 60: +€18–€32/m²
A bedroom partition upgraded for acoustic from 37 dB to 50 dB adds €15–€25/m² on the base price.
Finish quality levels — Q1 to Q4
The joint-finishing quality level drives the paint-ready state — and the price. German-standard Q-classification used across Luxembourg.
Q1 — basic:
- Single joint compound fill on tape only
- Fastener heads filled
- Visible joint line remains
- Suitable for substrate to be tiled, clad with panel, or behind wardrobe
- Included in standard €45–€95/m²
Q2 — standard decorative:
- Three-coat joint compound
- Fasteners filled and sanded
- Joints blended with surrounding surface to within 3 mm
- Suitable for textured paint, matte wall paper, or basic matte paint
- €0–€5/m² over Q1
Q3 — high decorative:
- Full three-coat with additional broad-edge feathering
- Fastener heads fully hidden
- Surface smoothed to within 1 mm deviation
- Suitable for satin paint, fine wallpaper, or standard decorative finish
- +€6–€10/m² over Q2
Q4 — premium / grazing-light:
- Full skim-coat over the entire surface (not just joints)
- Sanded to a continuous uniform surface
- Suitable for high-gloss paint, metallic paint, pigmented satin, grazing light conditions
- +€15–€25/m² over Q2
Choosing the right Q level:
- Bedroom walls with matte paint: Q2
- Open-plan living room with large windows (grazing light): Q3
- Feature wall with satin or semi-gloss paint: Q3 minimum, Q4 if the paint is very reflective
- Bathroom with glossy paint above splash zone: Q3
- Ceiling directly under pendant lighting: Q3 if light is close to the surface; Q4 if light is less than 15 cm from the ceiling
Common mistake: Specifying Q2 and expecting a glass-smooth wall. If the client will paint high-gloss satin over the partition, Q3 minimum is required. Asking for Q3 retrospectively adds €8–€15/m² because the work needs a second sanding pass.
Worked example on a 30 m² partition:
- Q2 standard: 30 × €70 = €2 100 TTC
- Q3 for matte decorative living room: 30 × €77 = €2 310 TTC
- Q4 for grazing-light feature wall: 30 × €92 = €2 760 TTC
TVA — 3 % super-reduced or 17 % standard
Drywall is almost always part of a renovation project, which opens the 3 % super-reduced TVA regime when the dwelling qualifies. Pre-approval via the attestation LOG-2018 is required.
Rate by scenario:
- Drywall in existing primary residence >2 years old, owner-occupied: TVA 3 % with LOG-2018 attestation (within the €50 000 lifetime cap per dwelling)
- Drywall in primary residence <2 years old: TVA 17 % (not eligible for super-reduced)
- Drywall in rental flat or secondary residence: TVA 17 %
- Drywall in commercial office or shop: TVA 17 %
- Drywall in new-build residential: TVA 17 %
- Drywall as part of agreed copropriété works on private apartment >2 years: TVA 3 % on the apartment portion, TVA 17 % on common-area works
- Drywall in a public or subsidised project: as per the project-specific TVA regime
The LOG-2018 attestation process:
- Owner compiles proof of property (title deed) and proof of primary-residence status (address certificate, identity document)
- Owner submits to the Administration de l'enregistrement et des domaines with the planned scope and estimated cost
- AED issues the attestation (usually within 4–8 weeks)
- Owner forwards the attestation reference to each trade contractor
- Each invoice issued after the attestation references LOG-2018 and applies TVA 3 %
Mandatory mentions on a 3 % invoice:
- LOG-2018 attestation reference number
- Property address and date of construction
- Scope description (drywall partition / ceiling / lining, m² count, build-up)
- Labour hours and materials separate
- Net HT, TVA 3 %, TTC totals
Worked example on a 30 m² partition at €70/m² TTC:
- 3 % regime: net €2 039 + TVA €61 = TTC €2 100
- 17 % regime: net €1 795 + TVA €305 = TTC €2 100
- Saving on primary residence with LOG-2018 = ~€244 on a €2 100 job
For a €14 000 drywall package in a 2-storey renovation, the saving is ~€1 660.
The attestation carries over to the same dwelling for the €50 000 cap; subsequent renovations (kitchen, bathroom, roofing) use the same reference until the cap is reached.
Comparing three drywall quotes
The six checks that matter:
- Trade registration. plâtrier-peintre or plaquiste speciality listed in Autorisation d'établissement; Chambre des Métiers registration verifiable.
- Detailed take-off. m² of each wall type listed (partition, lining, ceiling, fire), per build-up and per room.
- Build-up specified. For each line item — stud size, stud spacing, insulation type and thickness, board type and thickness, finish Q level, acoustic or fire rating.
- Brand of materials. Knauf, Rigips (Saint-Gobain), Gyproc, Fermacell — indicate brand to compare apples with apples.
- Finish quality level. Q1/Q2/Q3/Q4 explicitly stated on each surface.
- Warranty. 10-year décennale under the Luxembourg décennale regime on load-bearing-relevant works; 2 years on standard partitions is the minimum.
Briefing pack to share with each tradesman:
- Floor plan with partition positions marked and dimensions
- Elevations if partitions are curved or have niches
- Acoustic or fire requirements by wall (if multi-family or special use)
- Finish destination for each wall (paint type, tile, wallpaper)
- Power and plumbing routing inside the wall (provide drawings from the other trades)
- LOG-2018 attestation reference if 3 % TVA applies
- Site access constraints (lift-or-stairs for boards, night or weekend restriction)
Typical quote segments in Luxembourg:
- Budget (−25 %): small 1–2-person outfit, local brand or no-brand boards, basic Q2 finish, no warranty on acoustic — useful for garage or utility room lining
- Median: established SME using Knauf or Rigips, Q3 standard, 2-year warranty, LOG-2018 handled — best value
- Premium (+25 %): specialised interior-finish contractor, Q4 grazing-light finish on feature walls, acoustic and fire specialist, 5-year warranty — used for villa, show apartment, medical practice
Quotes on a shared scope cluster within ±15–20 %. A 30 %+ discount usually means reduced insulation thickness, cheaper boards, or omitted Q-level upgrade. Verify each line item and request sample photos of previous work at the stated Q level before selecting.
For a 30 m² partition budget package, the spread typically looks like: €1 700 (budget), €2 100 (median), €2 700 (premium). For a 140 m² house-wide package, typically: €8 500 (budget), €10 000 (median), €12 500 (premium).
Drywall installation in Luxembourg sits between €45 and €95 per m² turnkey, driven by build-up thickness, acoustic and fire rating, insulation depth, and finish Q-level. A primary-residence renovation older than 2 years with LOG-2018 attestation pays TVA 3 % instead of 17 %, saving around 12 % on the bill. Fynd.lu lists declared plâtriers-peintres and plaquistes with Autorisation d'établissement, Chambre des Métiers registration and public-liability cover — compare three quotes on a shared brief with plan, build-up specifications and finish Q-level before committing.
