ETICS — Thin render
External thermal insulation — the most efficient technique for renovating the facades of Esch terraced houses without loss of internal floor area.
QUASART · Esch-sur-AlzetteThermal insulation
Thermal insulation
in Esch-sur-Alzette
ETICS, attic insulation, energy renovation — QUASART insulates buildings in Esch-sur-Alzette, Belval and southern Luxembourg. Klimabonus programme, guaranteed R values. Head office in Crauthem, L-3327.
+200Insulation projects
R ≥ 3.7m·K/W guaranteed
Insulation Esch-sur-Alzette
QUASART — thermal insulation in Esch and Belval
Esch-sur-Alzette, the second-largest city in Luxembourg, is undergoing a major urban transformation driven by the development of Belval. The historic stock in the city centre (terraced houses, post-war apartment blocks) calls for deep energy renovation — mostly external wall insulation combined with attic treatments. The new Belval schemes, on the other hand, integrate high thermal requirements from the design phase and often demand fire-rated mineral ETICS on multi-storey buildings.
QUASART intervenes on both markets: energy renovation of existing buildings (ETICS, attic insulation, ITI) and new-build insulation (basement floor insulation, acoustic linings, fire-rated rockwool on stairwells). Our expertise covers every thermal insulation technique suited to southern Luxembourg, with equal attention to material choice and to on-site execution quality.
The Esch building stock is a particularly strong candidate for deep thermal renovation. Pre-1930 workers’ estates, central terraced houses and post-war apartment blocks typically show U-values of 1.5 to 2.5 W/m²K — figures very far from current targets (U ≤ 0.24 W/m²K targeted by Klimabonus). A 16-20 cm hydraulic render or ETICS EWI can lift these buildings to performance equivalent to new construction, with 60-75% heating savings and a noticeable property value uplift.
Based in Crauthem (L-3327), only 10 minutes from Esch-sur-Alzette, QUASART responds quickly across the whole southern Grand Duchy — Esch, Belval, Schifflange, Sanem, Mondercange, Dudelange and Differdange. Our site logistics match the local constraints: shared courtyards, narrow terraced streets, active developer planning.
Our insulation solutions
QUASART insulation solutions in Esch-sur-Alzette
Attic insulation
Blown rockwool or wood-fibre boards — fast intervention and immediate thermal gain for roofs in the Esch city centre.
Bio-based ETICS
STEICO wood fibre as external insulation — optimised thermal performance and carbon footprint. Enhanced Klimabonus premium for bio-based materials.
Basement floor insulation
High-density EPS, cork or rockwool — insulating slabs over crawl spaces or basements. Ideal for older Esch terraced homes.
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 Esch-sur-Alzette
FAQ
Frequently asked questions — Insulation in Esch-sur-Alzette
Esch terraced houses usually have front and rear facades exposed to the outside, with shared party walls. ETICS on the exposed facades, combined with blown-in attic insulation, is the most efficient solution. Floor insulation over a crawl space can complete the thermal treatment. QUASART carries out a free diagnostic visit and quantifies the expected energy gain before proposing a scope of works.
Yes. QUASART intervenes in Belval and across southern Luxembourg — Esch-sur-Alzette, Schifflange, Sanem, Mondercange, Dudelange, Differdange. Our Crauthem head office is 10 minutes from Esch and Belval, which allows us to deliver efficient logistics on multi-storey developer schemes and dedicated teams on individual renovations alike.
The myenergy Klimabonus programme applies to all primary residences in Luxembourg, including in Esch-sur-Alzette and the surrounding municipalities. Eligibility depends on building age and target thermal performance. Consult myenergy.lu to check your situation before signing a quote or starting the works.
QUASART installs several types of attic insulation: blown rockwool (Rockwool Jetrock) for unoccupied attics, wood-fibre boards (STEICO) for habitable roof slopes, blown-in cellulose wadding. The choice depends on the roof geometry and the target R value — typically R ≥ 6.0 m·K/W for roofing.
The budget depends on the scope: blown attic insulation (30-60 €/m²), ETICS facade (120-280 €/m²), basement floor insulation (40-80 €/m²). For a typical Esch terraced house (front and rear facades plus attic), expect between 15,000 and 35,000 € depending on the materials chosen. QUASART provides an accurate quote after a free diagnostic visit.
QUASART supplies the technical documents needed for your Klimabonus file: calculation of achieved R values, ACERMI-certified insulation datasheets, invoices compliant with the programme requirements. The application itself must be filed by the property owner through myenergy.lu before the works begin.