Demolition & preparation
Existing partition demolition, finish stripping, cleaning, rubble removal. Clean starting point.
Renovation — Complete fit-outComplete
Complete
renovation
Drywall, painting, insulation, rendering — the complete fit-out by a single point of contact. QUASART coordinates, meets deadlines, delivers a quality finish.
Single contactComplete fit-outCoordination includedDeadlines met
1 singleContact
200-450€/m² avg. budget
DOEHandover file
Full renovation
A single point of contact for your complete fit-out.
A complete renovation of a dwelling or office floor requires coordinating multiple trades — drywall, painting, insulation, finishes — that must follow in a precise order. Every delay impacts the next trade.
QUASART, based in Crauthem (L-3327), handles the complete fit-out with an integrated team. One contract, one point of contact, one schedule kept. The solution chosen by developers, investors and demanding owners in Luxembourg and the Greater Region.
Complete Renovation · Service sheet
Données certifiéesCoordination10.0
Finish quality9.5
Deadline compliance9.0
Budget control8.5
Average budget200 to 450 €/m²
HandoverDOE + snagging
Integrated servicesDemolition, drywall, insulation, rendering, painting, coordination
Coordinated tradesElectrical, plumbing, joinery — referenced partners
PlanningContractual master schedule + detailed weekly programme
Site meetingsWeekly with written minutes + photos
HandoverJoint inspection + snagging + DOE file
WarrantiesAXA 10-year warranty 10/0214108 + 1-year perfect completion warranty
DTU 25.41DTU 26.1DTU 59.1DTU 45.11NF P 03-001RE 2020 / GPE
15 TCE LOTS
15 fit-out lots — one single contract.
QUASART handles 4 lots in-house and coordinates 11 partner trades. One schedule, full coordination, DOE handover.
Applicable to residential projects: houses, apartments, small residences. For medium and large projects, contact us for a personalised study.
QUASARTLots intégrés — en propre
Drywall
Partitions, ceilings, linings
Knauf · Placo · FermacellInsulation
Thermal & acoustic
Rockwool · Recticel · ISOVERRendering & preparation
Skim coating, levelling, preparation
Knauf · Weber · SikaPainting & finishes
Interior & exterior
Tollens · Sikkens · ZolpanPARTENAIRESLots coordonnés — sous-traitance pilotée
Parquet
Bonded or floating installation
Tiling
Floors and walls, large format
Kitchen
Installation and connections
Screed
Fluid or traditional
Electrical
Code compliance, panels
Plumbing
Sanitary, drainage
Heating
Radiators, underfloor heating
Polished concrete
Decorative floors and walls
Resin
Technical floors, epoxy, PU
Interior joinery
Doors, frames, wardrobes
Pedestal tiles
Terraces and balconies
Finish levels
From standard to premium.
QUASART offers three finish levels adapted to your budget and requirements.
Standard
Standard (DTU C)Rental housing — functional, clean
Careful
Careful (DTU B)Primary residence — attractive, durable
Premium
Premium (DTU A)High-end — flawless finish
Design
Design ceilingsCurved suspended ceilings, integrated LED
Decorative
Decorative wallsPolished concrete effect, lime, Venetian stucco
Technical
Technical floorsLevelling + epoxy resin — loft look
Manufacturing partners
Reference manufacturers for each lot.
QUASART selects the best manufacturers for each trade.
Germany · Drywall & rendersGermany · Complete system
KNAUF
BA13 · MP 75 · Multifinish · NiveliteComplete drywall and machine render systems. The most specified system in Luxembourg.
Drywall — partitions, ceilings
Machine plaster — mechanical render
Finishing renders — skim coat, levelling
Complete system from rail to finish
Denmark · InsulationDenmark · Acoustic · Fire A1
ROCKWOOL
Rockmur · Rockton · FloorrockRock wool for thermal and acoustic insulation. Non-combustible A1.
Rockmur — wall linings
Rockton — acoustic partitions, Rw ≥ 50 dB
Floorrock — under screed, impact noise
Non-combustible A1
France · PaintingFrance · Painting · Premium
TOLLENS
Idrotop · Envol · OrizonProfessional interior and exterior paints. 1,600 shades. A+ rated.
Idrotop — interior matte, A+ rated
Envol — premium satin, washable
1,600 shades — RAL/NCS matching
Permanent stock in Luxembourg
France · Levelling & facadeFrance · Saint-Gobain · Floors
WEBER (Saint-Gobain)
Nivelit · Monorex · CalcisoilSelf-levelling compounds, facade renders and repair mortars.
Nivelit — self-levelling floor compound
Monorex — single-coat facade render
Calcisoil — self-levelling thin screed
Complete Saint-Gobain range
Integrated services
The complete fit-out, one team.
Partitions & ceilings
New BA13 partitions. Suspended ceilings, service enclosures. Thermal and acoustic linings.
Renders & painting
Wall/ceiling rendering, floor levelling. Complete painting. Careful finishes, site cleaning.
Integrated insulation
Thermal and acoustic insulation in partitions and linings. Grants may apply if R ≥ 3.7 (myenergy.lu).
OPC coordination
Weekly schedule, site meetings, snagging tracking. Interfaces with electrical, plumbing, joinery.
Handover & DOE
Joint inspection, snagging clearance, DOE file handover. AXA 10-year warranty.
Process
Phases of a complete renovation
QUASART plans each phase to minimise timescales and guarantee quality.
01
Visit & costing
Technical visit, existing condition survey, layout plans. Detailed lot-by-lot costing. Provisional schedule with milestones.
Visit · Plans · Costing02
Demolition & interior shell
Partition demolition, finish stripping, removal. Services routing by our partners. Substrate preparation.
Demolition · Services · Substrates03
Dry fit-out
Drywall (partitions, ceilings), insulation, rendering. Each trade follows seamlessly.
Drywall · Insulation · Rendering04
Finishes & handover
Painting, cleaning, joint inspection. All snagging cleared. DOE file and keys handed over. 1-year perfect completion + AXA 10-year warranty.
Painting · DOE · WarrantyStandards
Standards & warranties
QUASART guarantees every renovation through standards, insurance and contractual documents.
NF P 03-001
Private contracts
Reference standard for private works contracts — obligations, acceptance, warranties, deadlines.
AXA 10-year
10-year warranty
AXA 10-year insurance policy 10/0214108 — covers defects affecting structural integrity for 10 years.
Perfect completion
1-year warranty
1-year perfect completion warranty — QUASART rectifies all reported defects.
DOE
As-built file
File handed over at completion — drawings, data sheets, certificates, manufacturer warranties.
RE 2020 / GPE
Energy performance
Insulation works comply with RE 2020 and GPE. R ≥ 3.7 according to current criteria for insulation grants (myenergy.lu).
DTU 25.41/26.1/59.1
Applicable DTU
Each lot complies with applicable DTU — drywall, renders, painting.
Project types
Complete renovation — for whom?
01
Apartment — complete redistribution
Existing partition demolition, new layout, insulation, drywall, painting. Complete transformation.
02
Developer programme — turnkey delivery
QUASART handles the fit-out of 20 to 200 units. One contract, one coordinated schedule.
03
Offices & commercial
Office floor reconfiguration. Out-of-hours work. Handover in operational condition.
04
Buy-to-let investment
Renovation before letting — budget optimisation to maximise rental yield.
Selected projects
Complete renovation in action
Complete redistribution 110 m²
Residential · 2024Ville-Haute ApartmentLuxembourg City
45 units — complete fit-out
Programme · 2024Gasperich ResidenceGasperich, Luxembourg
600 m² floor — reconfiguration
Commercial · 2023Kirchberg OfficeKirchberg, Luxembourg
Complete interior renovation
Residential · 2024Strassen HouseStrassen, Luxembourg
12 apartments — fit-out
Multi-unit · 2023Esch Co-ownershipEsch-sur-Alzette, Luxembourg
Complete renovation 150 m²
Residential · 2023Thionville HouseThionville, France
Renovation is the art of transforming an existing space into something new — without the timescales and budget of new construction. One contact, one schedule, one result.QUASART — Execution philosophy
FAQ
Questions about complete renovation
Everything you need to know
QUASART handles the complete fit-out: drywall, insulation, rendering, painting. For technical lots (electrical, plumbing, joinery), we recommend certified partners and coordinate their work.
Fit-out costs range from 200 to 450 €/m² depending on initial condition, area and finish level. Free diagnosis and quote from QUASART.
An 80 m² apartment: 4 to 6 weeks. A 150 m² house: 6 to 10 weeks. A 500 m² office floor: 8 to 12 weeks.
For partial renovation: yes, with protection measures. For complete renovation: not recommended. QUASART offers a compact schedule.
1-year perfect completion warranty. AXA 10-year warranty 10/0214108. DOE file handed over at completion.
Yes — Luxembourg (primary), Moselle (Metz, Thionville), Belgium (Arlon) and occasionally Saarland (Trier).
Areas of operation