Carpentry & roofing · GE

Windows and Double Glazing in Carouge

Replacing windows in Carouge: Vieux-Carouge, rental buildings, tram and road noise, Geneva rules. Describe your project and compare quotes.

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Are you looking for a windows and double glazing specialist in Carouge? The town, Geneva’s neighbour on the other side of the Arve, combines an eighteenth-century centre with much more recent districts. Replacing windows here therefore does not follow the same process depending on the street where you live.

This page helps you place your project, anticipate the steps involved and prepare a request that companies in the region can price precisely.

Replacing windows in the Vieux-Carouge

The Vieux-Carouge was built in the eighteenth century under the kings of Sardinia: low houses, inner courtyards, streets laid out on a grid. This built fabric has a unified character, and that is what is protected. On these façades, the windows contribute directly to the look of the street.

In practical terms, in a protected area or on a listed building, the material, the design of the opening sashes, the division of the glazing and sometimes the colour may be dictated. A timber frame is often the only option accepted, whereas PVC, which costs less to buy, may be refused. If your house faces an inner courtyard rather than the street, the requirements are not necessarily the same, but do not assume so: ask the question.

On old walls, fitting also demands care. Openings are rarely perfectly square, the reveals are thick, and the joinery has to be made to measure. A company used to old buildings will know what it can keep (shutters, surrounds, interior woodwork) and what has to be redone.

Common window work in Carouge

Depending on the type of housing, needs are distributed differently:

  • Houses in the old centre: replacing aged timber windows, adding secondary glazing, redoing the seals around the frames, sometimes restoring rather than replacing.
  • Rental buildings in town: replacing a whole façade’s windows, with units to be replaced flat by flat, coordinated with the managing agent.
  • More recent districts towards Pinchat and La Fontenette: newer-generation windows to be renewed to improve insulation, or changed to triple glazing during a full renovation.
  • Attics and roofs: fitting or replacing roof windows, which require careful waterproofing where they meet the roof covering.

The usual materials are timber, PVC, timber-aluminium and metal, with double or triple glazing. Each has its strengths: upkeep, appearance, lifespan, slimness of the frame. The right choice depends on the building, not on a general rule.

Noise, tram and city life: what the location changes

Carouge is a dense town, served by the tram to Geneva. Depending on your street, noise from the tram, the traffic or the neighbours may be your first reason for changing windows, even before thermal comfort.

For noise, it is not only the number of panes that matters. The make-up of the glazing (panes of different thicknesses, laminating), the quality of the seals and the way the frame is fitted into the reveal make the difference. A high-performance window that is badly fitted lets noise through at the joints. So specify in your request where the nuisance comes from: busy street, courtyard, tram line, and on which floor.

As for climate, Geneva is a city canton on the lake, with mild winters on the plain and hot summers in town. This changes the thinking: you want to limit losses in winter, but also summer overheating on very exposed façades. Solar-control glazing or suitable blinds may be worth discussing with the company, especially for homes under the roof.

Permit, energy and the owner’s agreement

In the canton of Geneva, building permits are issued by the canton, through the Office des autorisations de construire. For windows, whether a permit is needed depends on the scale and nature of the changes: a replacement that alters the appearance of the façade, or one in a protected area, is far from trivial. Check the situation of your building with the municipality of Carouge and the relevant cantonal department before ordering.

On energy, the canton applies the cantonal energy law (LEn). The cantonal energy office (OCEN) runs the Programme Bâtiments in Geneva, on which subsidies depend. Replacing windows alone often qualifies for support only as part of a broader renovation, under the cantonal programme in force. Find out before signing, as the conditions are checked before the work starts.

That leaves the question of who decides:

  • House owner: you decide, within the protection and permit rules.
  • Co-owner: windows are generally part of the shared façade; replacement is decided at the co-owners’ meeting, to preserve the unity of the building.
  • Tenant: you need the owner’s agreement. In Carouge, many rental buildings are run by managing agents (régies), the natural contact for reporting a window problem.

Preparing your request and comparing quotes

The more precise your description, the more comparable the quotes. Gather the following before you ask:

  • the address or district, and the type of building (house in the old centre, rental building, villa, home under the roof);
  • the number of windows, their approximate dimensions and their condition (draughts, condensation, damaged timber, noise);
  • the current material and the one you are considering, or your openness to advice;
  • your priority: noise, insulation, appearance, upkeep, or a mix;
  • any known constraints: protected building, shutters to keep, agreement of the managing agent or the co-ownership.

A good quote itemises each item: removal of the old windows and disposal, supply of the new ones with their glazing make-up, fitting, waterproofing and interior and exterior finishes, paint or plaster touch-ups. Also check what is not included: shutters, blinds, sills, façade connections.

The cost varies according to several factors: the material, the type of glazing, the size and shape of the openings (arched, made to measure), the floor and access, the condition of the reveals and any protection constraints. Compare quotes drawn up on the same basis rather than on the total alone. To get started, you can request a quote: describe your windows and your project, and your request will be passed on to craftspeople and companies in the region who will contact you. The quote is free and without obligation.

Useful pages around your project in Carouge

Updated 29 October 2026

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Frequently asked questions

Can I change my windows freely in the Vieux-Carouge?
Not necessarily. The Vieux-Carouge is an old, protected ensemble where the material, the design of the opening sashes and the colour may be dictated. Before ordering anything, check with the municipality and the relevant cantonal department, then ask the company to price the solution that will be accepted.
Do I need a permit to replace windows in Carouge?
It depends on the nature of the change and the situation of the building. In the canton of Geneva, building permits go through the Office des autorisations de construire (building permits office). A like-for-like replacement in a modern neighbourhood does not call for the same steps as a change to a façade in a protected area: check before you order.
Is window replacement subsidised in Geneva?
Often only as part of a broader energy renovation, depending on the programme in force. Subsidies under the Programme Bâtiments in Geneva depend on the cantonal energy office (OCEN). Find out before signing a quote: an application submitted after the work risks being refused.
I rent in a Carouge building: can I have my windows changed?
Windows are part of the building envelope. The decision rests with the owner, in practice the property managing agent (régie) that runs the building. If noise or draughts bother you, report it to the agent in writing. You cannot start the work on your own initiative.
Is double glazing enough against tram and traffic noise?
It depends on the source of the noise and the make-up of the glazing. The thickness of the panes, the gap between them and the airtightness of the frame count as much as the number of panes. Describe the nuisance precisely to the company, which can propose suitable glazing and detail it in the quote.