ETICS — Residential
Thin render on rockwool — the most common solution for Bertrange villas and collective residences. Many tints and finishes to match surrounding architecture.
QUASART · BertrangeThermal insulation
Thermal insulation
in Bertrange
ETICS, attic insulation, energy renovation — QUASART insulates residences, villas and tertiary buildings in Bertrange and Belle Étoile. Head office in Crauthem, L-3327.
+200Insulation projects
12 minFrom Crauthem
Insulation Bertrange
QUASART — thermal insulation in Bertrange
Bertrange combines three overlapping identities: a residential commune with its villas and family houses, a large commercial zone around Belle Étoile (the largest shopping centre in the Grand Duchy), and a tertiary hub with offices, business hotels and international schools. This diversity translates into varied thermal insulation demand: energy renovation for private owners, tertiary performance for offices, acoustic requirements for hotels, and envelope improvements for shops.
In residential projects, QUASART mainly works with thin-render ETICS on rockwool — a versatile, economical and durable solution. Blown attic insulation with Rockwool complements the system for overall energy gain. In the tertiary sector near Belle Étoile, we design systems adapted to height and use: reinforced ETICS at ground floor, thermal-bridge treatment, sometimes ventilated facades for strong architectural signatures. Business hotels benefit from our Knauf acoustic linings.
From Crauthem (L-3327), we are 12 minutes from Bertrange via the A6 motorway or the N3. We work across the entire commune — Bertrange centre, Belle Étoile, Helfent, Route d’Arlon, international schools district. Smooth coordination with local co-ownership managers and tertiary-park facility managers.
Our insulation solutions
QUASART insulation solutions in Bertrange
Blown attic insulation
Rockwool Jetrock blown into lost attics — quick intervention (1 day for a typical house), R ≥ 6.0 m·K/W guaranteed, immediate thermal gain.
ETICS for tertiary buildings
High-density rockwool ETICS plus reinforced mineral render for offices and hotels near Belle Étoile — thermal performance, fire safety, easier maintenance.
Interior acoustic insulation
Phonic linings for hotels and collective residences — attenuation of inter-dwelling noise and Belle Étoile urban noise. Knauf glass wool plus phonic plasterboard.
Aides & Réglementations
Klimabonus — Aides à l’isolation
Des aides financières existent au Luxembourg pour les travaux d’isolation. Le programme myenergy (Klimabonus) peut couvrir une partie de votre investissement selon les critères d’éligibilité en vigueur. Consultez myenergy.lu pour connaître votre situation.
myenergy.lu →Zones proches
QUASART also insulates near Bertrange
FAQ
Frequently asked questions — Insulation in Bertrange
Recent collective residences in Bertrange are most often insulated with thin-render ETICS on rockwool 140-160 mm — standardised, reliable solution, compliant with Luxembourg thermal requirements and suited to decisions at co-ownership general meetings. For older residences to be renovated, the combination ETICS plus attic insulation plus balcony thermal-bridge treatment offers the best return on investment. QUASART works with several co-ownership managers in the area.
Yes. QUASART works regularly on tertiary buildings in the Belle Étoile area and Bertrange centre — offices, business hotels, shops. Our teams master the specific constraints: phasing to maintain occupant activity, public management near commercial sites, coordination with facility managers. We handle both new works and energy renovations of existing buildings.
Yes, in most cases. The blowing technique (Rockwool Jetrock rockwool or cellulose fibre) allows insulation to be laid directly on attic flooring without emptying everything — just clear objects placed on the ground. For genuinely cluttered attics, a prior tidying pass is needed. The blowing operation itself takes 3 to 6 hours for a typical 120-160 m² habitable house.
QUASART sizes all its insulation to reach at least R ≥ 3.7 m·K/W on external walls and R ≥ 6.0 m·K/W on roofing. These values meet the performance thresholds recognised in Luxembourg and allow access to enhanced Klimabonus aids. In practice, these R values are obtained with 140-160 mm of facade insulation and 380-420 mm in blown attics — dimensions that have become standard on our Bertrange projects.
For a typical Bertrange villa (150-200 m² habitable, 130-180 m² of facade to insulate), the cost of complete ETICS (rockwool 140-160 mm plus thin render plus tinted silicate finish) ranges from 18,000 to 42,000 € depending on geometric complexity, height and finish. Construction time is generally 3 to 5 weeks. Accurate pricing after free diagnosis.
Bertrange does not impose a rigid municipal palette, but the commune encourages harmony with surrounding buildings — neutral tints, no garish colours on facades visible from public space. Building permit applications for ETICS must mention the planned tint and finish. QUASART supplies colour samples (Sto, Weber, Knauf chart) when submitting the permit application.