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uPVC and aluminium windows in Luxembourg

We replace your windows, French doors and front doors, made to measure, with sealed junctions and clean finishes inside and out. On their own or at the same time as facade insulation.

  • Made to measure
  • uPVC or aluminium
  • Junctions and finishes included
House renovated by BATI-LUX with new windows, front door, glass canopy and insulated facade
Windows, front door and glass canopy replaced during the facade insulation works.

Why replace your windows

Warmer, quieter, safer

Old windows let in cold, noise and damp. You will feel the difference of replacing them from the very first winter.

Fewer draughts

Modern double or triple glazing and new seals keep the heat inside.

More peace and quiet

Good glazing significantly reduces street noise.

No more condensation

Properly fitted frames limit condensation and mould around the windows.

Greater security

Modern hardware, reinforced locking points and a sturdy front door.

Less maintenance

uPVC and aluminium never need repainting: a wipe with a sponge is all it takes.

Perfect timing with the facade

Replaced during external wall insulation, the windows are perfectly connected to the new insulation.

Our window and door services

All your openings

Windows and French doors

uPVC or aluminium, double or triple glazing, tilt-and-turn or sliding, in the colour of your choice.

Front doors

Insulated, secure doors, with or without glazing, and a glass canopy if you wish.

Roof windows

Roof windows fitted in the loft, connected to the roof covering and finished inside with plasterboard.

New openings

Creating a French door or enlarging a window opening, with masonry and lintel work.

Our approach

How your project works

  1. Visit and measurements

    We measure each opening and check the condition of the sills and reveals.

  2. Choices and quote

    Material, glazing, colour, opening direction: we advise you and price each window.

  3. Made to measure

    The frames are manufactured to your dimensions. We give you the installation date when you order.

  4. Removal and installation

    Removal of the old windows, installation of the new ones with airtight and watertight junctions.

  5. Finishes

    Making good the reveals and sills inside and out, cleaning.

  6. Handover

    We adjust each opening sash and check everything works with you.

Our projects

Openings that transform a house

New windows fitted during facade insulation works, a French window created in a gable, roof windows and large glazed openings in lofts and an extension.

House before the works, with old windows and a beige facade
Before: old windows
House after the works, with new windows, front door and glass canopy
After: windows, door and canopy
Mineral wool insulation and vapour barrier, new windows fitted in the loft
New windows in the loft
Large loft room with a French window created in the gable and roof windows
French window created in the gable
Metal stud framing and plasterboard under the sloping ceiling with roof windows
Fitting roof windows
Timber-clad extension with a large picture window
Large picture window

See all our projects →

Google reviews

They trusted us with their windows and doors

My project included facade work, replacing the patio doors and repairing a leaking balcony. I am very satisfied with the way the work was carried out, from putting up the scaffolding to how clean the site was left at the end of each day.
Bogdan C. · Google review, 19 January 2024 · facade, patio doors

Government grants

Klimabonus: windows may be eligible

The Luxembourg government's Klimabonus programme supports energy renovation, in some cases including window replacement. Eligibility depends on your home and your project.

Where we work

All of Luxembourg, especially the south

Our head office and showroom are in Esch-sur-Alzette. We work throughout the Grand Duchy and in the French towns along the border.

  • Esch-sur-Alzette
  • Luxembourg City
  • Differdange
  • Dudelange
  • Sanem · Belval
  • Pétange
  • Schifflange
  • Bettembourg
  • Kayl
  • Mondercange
  • Käerjeng
  • Mersch
  • Lorentzweiler
  • Frisange

Frequently asked questions

Windows: your questions

uPVC or aluminium?

uPVC offers excellent value for money and insulates well. Aluminium allows slimmer frames and large glazed openings. We advise you based on your house and your budget.

Double or triple glazing?

Triple glazing insulates better and is well suited to north-facing facades or very well-insulated houses. We discuss it together during the visit.

Do the walls around the windows need redoing?

No, we make good the reveals and sills inside and out: you have nothing extra to arrange.

How long is the wait?

The windows are made to measure: the lead time depends on the manufacturer and is given to you when you order. Once the windows are delivered, installation is quick.

Is the quote free?

Yes, for homeowners within 50 km of our offices: we come and take measurements and give you a detailed quote, with no obligation.

Free site visit

Let's talk about your windows

Send us a photo of your project: we will call you back to arrange a visit, Monday to Friday.

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