Deck refinishing cost in Luxembourg (2026)

Finish-system lifespans:

• Oil saturator, unpigmented — 12–18 months before next coat
• Pigmented saturator oil — 18–30 months
• Open-pore alkyd — 24–36 months
• UV-cured 2K outdoor coating — 36–48 months (premium)

A €42/m² quote on 30 m² bills at €1 260 TTC. Private primary residence renovation can qualify for the 3 % super-reduced TVA rate via logement.lu — dossier before start saves €156 on the above.

• Wood species. Pine and thermo-ash sand at 8–12 m²/h with a 40–60 grit belt; tropical hardwoods at 4–6 m²/h need harder abrasive and consume more paper.
• Current condition. A deck with 1–2 mm of greying oxidation sands off in one pass; surface cupping or deep fungal staining needs two passes plus localised oxalic-acid brightener.
• Fixing type. Exposed stainless screws re-sink quickly; re-tightening over a cupped board often requires a new screw location and a wood filler. Clip systems need full lift to inspect, at 40–70 % more labour.
• Plank replacement. Each replacement plank (2 m length, 145 mm width) costs €18–€45 for pine and €45–€110 for tropical hardwood; fitting time 10–25 min per plank.
• Finish depth. Two thin coats of saturator oil on a dry day soak in over 20 min; three coats add 30 % labour and a 24 h return visit.
• Season. LU refinishing window is April–October. Applying oil in ambient below 8 °C or above 28 °C, or on damp boards (>18 % moisture), voids most manufacturer warranties. Out-of-window work adds 10–20 % for drying equipment.

A 30 m² pine deck in fair condition: sand 3 h, clean 1 h, oil 2 coats 4 h total = 8 h × €55/h labour = €440 plus €250 material = €690 net, ~€810 TTC. In line with the €35–€40/m² band.

Standard inclusions:

• Site visit, moisture test (<18 %) and photo record
• Removal of garden furniture from the work area
• Brushing and washing with a neutral wood cleaner
• Localised oxalic-acid brightening for stains
• Belt-sand full surface (40–60 grit first pass, 80–100 grit second pass)
• Dust extraction during sanding
• Localised filler for gouges and knots
• Two coats of saturator oil or alkyd (named brand)
• Clean-up, furniture replacement and a care-instruction sheet

Usually excluded — separate lines:

• Substructure (joist) inspection and replacement — €18–€45/m² when joists rotten
• Full plank replacement — €45–€85/m²
• Railing refinishing — €22–€45/linear metre
• Hidden-clip conversion — €14–€28/m² extra
• Pergola and overhead woodwork — €18–€32/m²
• Terrace boards lifted to treat slab waterproofing — €8–€15/m² and separate membrane work
• Bi-annual maintenance oil refresh — €14–€22/m² (reduced visit)

A devis lacking the finish-system brand and grit-sequence plan is an invitation to a short-lived result. Ask for the product sheet.

Outdoor-woodwork refinishing in Luxembourg falls under the Peinture or Menuiserie-Charpenterie branches, depending on whether the job is primarily finish-based or involves plank replacement. The artisan holds an Autorisation d'établissement, is inscribed at the Chambre des Métiers and registered with the ITM.

Seasonal window:

• LU climate confines open-air oiling to April through October, and ideally May–September for optimal drying
• Ambient temperature at application: 10–25 °C; wood-surface temperature in full sun can exceed ambient by 15 °C, pushing the practical window to early morning
• Wood moisture must be below 18 % measured at 1 cm depth — a reliable meter reading is standard practice
• Rain within 6 hours of an oil coat destroys the film; a day's weather check is essential

TVA:

• Standard 17 % on labour and material for rentals, second homes, commercial
• 3 % super-reduced rate on eligible labour for primary residence over 2 years old with logement.lu dossier filed before start
• Deck refinishing on a primary residence is a well-established eligibility — ask the artisan to file the form

Copropriété and syndic: Balcony refinishing in an apartment building may require syndic approval for odour management and access. Most fire-rated stained systems require ventilation during application — schedule with neighbour notice.

Communes: declared artisans active across Luxembourg-Ville, Esch-sur-Alzette, Differdange, Dudelange, Mersch, Diekirch. A travel fee of €35–€80 applies beyond 30 km from the artisan's base.

Brief pack:

• Deck area m² and perimeter linear metres
• Wood species (pine, thermo-ash, ipé, bangkirai, cumaru)
• Fixing type and age of the installation
• Photos of current state (greying, cupping, splinters)
• Finish preference and colour direction
• Desired date window

Six comparison checks:

• Finish system. Named brand and product (Osmo, Owatrol, Blanchon, V33) with manufacturer TDS
• Grit-sequence plan. 40/60 + 80/100 minimum; tropical hardwoods usually need 40/60 + 60/80 + 100
• Moisture-meter reading. Before-and-after values documented
• Workmanship warranty. 2-year workmanship minimum, manufacturer 2–5 years on the finish
• Weather-dependency clause. Work postponed with moisture >18 % or rain within 6 h of application — no cancellation charge
• TVA position. 3 % or 17 % clearly stated, dossier handling named

Three quotes on a shared brief land ±15 %. A €28/m² quote against two €40/m² quotes usually skips the brightening step or drops to one oil coat — fails within a season.

• Rotten joists. A 3-year-unmaintained deck often reveals 20–40 % rotten joists on lifting for inspection — €18–€45/m² extra.
• Concealed water ingress. A balcony deck over a living room requires membrane check; missed, costs thousands in future leak repair.
• Splinter removal. Severe splintering needs full plank replacement, not sanding: €45–€85/m²
• Exterior paint overspray. A deck adjacent to a recently-painted wall gets overspray on the sanded surface — require wall masking in the devis.
• Material price drift. Oils and saturators in premium ranges (Osmo, Owatrol) are 15–25 % more than entry-level (Blanchon basic) — the devis must name the reference.
• Weather-driven re-visit. Rain after application: insurance-covered by manufacturer only if moisture and temperature records are produced — artisan must keep them.

Red flags:

• Brand or reference not in the devis
• Decennial warranty absent from the header for projects above €2 500
• Promise of single-day completion on 40+ m² (impossible with two coats and proper drying)
• No moisture meter mentioned
• Pre-payment over 30 % before sanding day
• Foreign installer without LU Autorisation d'établissement
• Guarantee of specific colour on a full sun exposure without UV-pigment discussion — unrealistic