A window that won’t close properly, a misaligned tilt-and-turn, a broken handle, worn seals or fogged glazing ? In Liège (4000) and across the whole province, we call out and repair your windows rather than replacing them : it’s faster, cheaper and often enough. Home diagnosis and a call-out by a Liège team, from Outremeuse to the Guillemins.
We work in Liège for window call-outs and repairs, with a Liège team that knows the city — from the houses of Outremeuse to the buildings of Le Carré, from the Meuse quays to the heights of Cointe and Sainte-Walburge.
A window that creaks, sticks or lets the air through does not always need a full replacement. We start with a home diagnosis : adjustment, replacement of parts or seals, or even of the fogged glazing alone — and we only propose a replacement when it is genuinely justified.
The faults we repairBeyond Liège itself, we also call out for windows in Seraing, Herstal, Ans, Chaudfontaine and Visé. If your project is more of a full replacement, see our windows in Liège ; and for a call-out on the Namur Meuse side, our window repair in Namur — same team, same responsiveness.
Let’s be clear : a window repair does not qualify for energy grants. The Wallonia support is reserved for replacement with high-performance glazing. Here is what applies depending on your case.
Adjusting hardware, changing a handle, replacing seals or fogged glazing counts as maintenance : these jobs qualify for no grant. Their appeal lies elsewhere — a cost far below a full replacement.
If the diagnosis shows that a high-performance replacement is necessary, the Walloon Habitation grant then applies to replacing the windows with high-performance glazing, scaled according to your income. We handle the application where relevant.
For a home more than 10 years old, VAT drops from 21 % to 6 % on supply and installation in the event of a replacement. Applied directly to your quote if a replacement is chosen.
If a replacement turns out to be the better option, the full breakdown of amounts, conditions and ceilings is on our window prices & grants page. We always tell you plainly when a repair is enough — and when replacing becomes more worthwhile.
A few recent call-outs in Liège and its neighbourhoods. Each time, the repair avoided a costly replacement — diagnosis then work by the same team.
A town house whose three windows no longer locked in the tilt position. Full adjustment of the hardware and stays, smooth operation restored without changing a single window.
Voir le chantier →An apartment near the station with draughts on five openings. Full replacement of the weather seals : comfort restored and a bill bearing no comparison with a replacement.
Voir le chantier →A villa on the heights with two glazed units filled with mist between the panes. Only the insulating glass was changed, frame and sash kept — clarity and insulation restored.
Voir le chantier →5.0/5 · 5verified reviews
« Nous avons fait appel à la société Wendows pour le renouvellement de nos châssis et nous sommes vraiment ravis du résultat ! Les travaux ont été réalisés dans les délais annoncés et la finition est impeccable. De plus, M. Aprile qui s'est occupé du devis, s'est toujours montré disponible pour répondre à toutes nos questions. Nous vous recommandons donc de faire appel à eux pour vos travaux ! »
« Nous avons fait appel à Wendows pour le remplacement de nos châssis et nous sommes très satisfait de notre choix. Qualité et suivi de chantier au top ! »
« Ik heb via WEndows een raam aangekocht van 2m x 2m. Mijn algemene ervaring is goed. Zeer goeie communicatie, altijs zeer snelle reactie bij een vraag of opmerking. Het installatie team werkte ook zeer efficient. Tevreden van het eindresultaat! Bedankt WEndows »
If the diagnosis concludes that a replacement is the right solution, we point you to the range suited to your Liège home :
For fogged or poorly insulating glazing, replacing the insulating glass alone restores clarity, thermal and acoustic comfort without changing the window.
See double glazing →When a window has reached the end of its life, PVC offers the best insulation-to-price ratio for town houses and everyday renovations in Liège.
Discover PVC →PVC, aluminium or wood-alu : compare the materials and find the replacement solution when a repair reaches its limits.
Explore the ranges →In most cases, a repair is enough and costs far less : a misaligned tilt-and-turn can be adjusted, a broken handle changed, worn seals replaced, fogged glazing replaced on its own. We start with an honest diagnosis at your home. We only recommend a full replacement when the window is genuinely at the end of its life or a repair would not be durable.
For after-sales and call-outs, we respond quickly everywhere in Liège and the province. Many repairs (adjustment, seals, handle) are done in a single visit. Replacing fogged glazing requires ordering the made-to-measure glass : we confirm a firm lead time at the diagnosis.
Mist or condensation between the two panes means the seal of the double-glazed unit has failed : the glass no longer insulates properly. The good news is we replace only the insulating glass, without changing the frame or the sash. It’s an economical repair that restores clarity and insulation.
A repair costs nothing like a full replacement : adjusting hardware, changing a handle or seals stays modest, and replacing fogged glazing on its own is far cheaper than replacing the whole window. The home diagnosis is free and we give you a clear price before any work. Note : a repair does not qualify for grants, unlike a high-performance replacement.
Yes. We call out and repair windows of all brands and all materials — PVC, aluminium, timber and wood-alu — whoever fitted them originally. Hardware adjustment, replacement of seals, handles, hardware parts or glazing : tell us the nature of the fault and your address, and we’ll confirm the call-out.
Describe the fault and your address : a Liège team calls you back, carries out the home diagnosis and repairs rather than replaces whenever possible.