Renovating a bathroom in Vernier is rarely the same story from one neighbourhood to the next. Between a flat in the long Le Lignon block, a house in Aïre and a home in Châtelaine, the constraints differ: access, water stacks, neighbours, the landlord’s approval. This page is a guide for preparing a project to replace sanitaryware, a shower or tiling in the commune.
What bathroom work is common in Vernier?
Requests centre on a few simple jobs:
- replacing the washbasin, the vanity unit, the toilet or the taps;
- converting a bathtub into a walk-in shower, or the reverse when a family grows;
- redoing the waterproofing under and around the shower or bathtub, then the tiling;
- adding or replacing ventilation, often overlooked even though it protects the walls from damp;
- reworking the electrics: lighting, sockets, heated mirror, heated towel rail;
- adapting the room for older age: level-access shower, grab rails, non-slip floor, seat.
A complete bathroom involves at least a plumber, a tiler and an electrician. The sequence matters: plumbing first, then waterproofing, tiling once it has dried, and fixtures and finishes last. A good quote makes this order clear.
Le Lignon, Aïre, Châtelaine or Vernier-village: the type of building changes the job
Vernier is a commune on the right bank of the Rhône, north-west of Geneva, and its built environment is varied. Le Lignon is known for its very long apartment block: hundreds of homes face one another, with bathrooms often stacked one above the other around shared service shafts. In this type of building, moving a toilet or a shower a few metres can involve connections you do not control: the starting point is to ask the managing agent where the stacks run and what is permitted.
In Châtelaine and in the areas of apartment buildings let to tenants, the same logic of shared stacks applies, with neighbours directly below and above your bathroom. In Aïre or around Vernier-village, there are more houses and small buildings, where the bathroom may be easier to modify, but where older pipes are sometimes discovered when the walls are opened.
In an older building, three points come up at the strip-out stage:
- the condition of the water pipes and drains, which sometimes have to be replaced at the same time as the fixtures;
- the condition of the substrate: an uneven screed or a wall damaged by damp has to be repaired before tiling;
- the space available, which determines whether a walk-in shower is realistic or whether a low-threshold shower is enough.
What the location means in practice for your project
Geneva is a very urban canton, with mild winters on the plain and hot summers in town. For a bathroom, the main consequence is ventilation: a room that is often closed, sometimes without a window, in summer and winter alike, accumulates humidity. Properly sized mechanical ventilation, or a window that genuinely opens, is part of the project and not a mere accessory. Tell the tradesperson at the first visit.
Access matters too. In a large apartment block, the lift, the hours set by the house rules and the protection of the common areas all weigh on the organisation: tile delivery, removal of rubble, noise from the work. Ask the managing agent or the caretaker what is required, then include it in the discussion with the tradespeople. In a house, the issue is more about getting materials through and having space to store them.
Finally, Vernier has industrial zones and lies close to the airport. This has no direct bearing on a bathroom, but it shows a commune where housing of all types, businesses and large developments sit side by side: tradespeople there work in occupied buildings and know the constraints of a job in a lived-in flat.
Electrics in a wet area: not something to improvise
A bathroom is a wet area within the meaning of the electrical installation rules. These rules are set out in the NIBT (the Swiss low-voltage installation standard), and they determine where a light fitting, a socket or a radiator may be placed depending on the distance from the shower or bathtub. This cannot be judged by eye. Entrust this work to an electrician and ask for it to be listed separately in the quote. If you are replacing the illuminated mirror or adding a light point, say so before the work begins, not halfway through.
Tenant, owner, co-ownership: the approvals to obtain in Vernier
Many homes in the commune are rented, and in Geneva many buildings are run by managing agents. What this changes for you:
- Tenant: the landlord’s or managing agent’s written approval is needed before any lasting change to the bathroom. Specify the nature of the work, the tradespeople you have in mind and what will be left in place or restored when you move out.
- Owner of a flat in co-ownership: the bathroom is yours, but the stacks, the load-bearing walls and sometimes the waterproofing of the slabs are common parts. Consult the co-ownership regulations and inform the administrator.
- Owner of a house: you decide alone, but the legal framework still needs to be checked.
As for permits, building permits are issued by the canton, through the Office des autorisations de construire. A like-for-like replacement of fittings does not always require any procedure, but as soon as the structure, the façades or ventilation ducts to the outside are involved, it is prudent to check with the commune of Vernier or the competent cantonal service. If your building is in a protected area, the same check is needed before changing an opening or a ventilation flue.
If you plan to improve the insulation of an exterior wall or the heating of the room at the same time, be aware that in Geneva energy is governed by the cantonal energy law (LEn) and the cantonal energy office (OCEN), on which the subsidies of the Buildings Programme depend. Conditions change: find out before signing, as a grant generally has to be requested before work starts.
Staying at home: adapting the bathroom for older age
Many residents want to stay in their own home for as long as possible. The bathroom is often the first room to adapt: a level-access shower replaces the bathtub, the floor becomes non-slip, grab rails are fixed into solid supports, the lighting is improved, and the door opens outwards or slides. These choices need to be thought through from the plan stage, because they determine the slope of the floor, the waterproofing and the width of the passage. If you rent, discuss it with the managing agent and explain the need: adapting a home for an older person is a request that is easier to justify in writing.
Preparing your request and comparing quotes in Vernier
Before contacting anyone, gather what you need to describe your bathroom precisely:
- the address and type of home (flat, floor, house), so that access is understood;
- photos of the current state, of the bathtub or shower, of the ventilation and of the electrical panel;
- the approximate dimensions of the room and whether or not it has a window;
- what you want to keep, replace or move;
- your status (tenant, owner, co-owner) and the state of the landlord’s approval;
- your timing constraints, for example if the room is the only washroom in the home.
A useful quote details the removal and disposal, the waterproofing, the materials (fixtures, tiles, taps) with their references, the installation, the electrics, the ventilation and the finishes. The cost varies mainly with the surface area, the choice of materials, whether or not the water supply points are moved, the condition of what is found under the coverings, the accessibility of the site and the number of trades involved. No reliable figure can be given without a visit: compare quotes that describe the same thing instead. To start the process, you can request a quote by describing your project; the request is passed on to tradespeople and companies in the area who will contact you.
Useful pages for your project in Vernier
- The trade in general: bathroom renovation
- The commune: work in Vernier
- The canton: canton of Geneva
- Other work in the commune: carpenter in Vernier, solar panels in Vernier, heating engineer in Vernier
Updated 29 October 2026