Interior renovation · JU

Bathroom Renovation in Delémont

Bathroom renovation in Delémont: old town, rental buildings, shared risers, landlord consent and how to compare quotes for your project.

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Are you looking for a bathroom renovation in Delémont? In the capital of the canton of Jura, the bathroom of a flat in the old town has little in common with that of a house in the Birse valley. This page presents the usual works, the constraints of the location and how to compare quotes for redoing your bathroom.

Bathrooms in Delémont’s old town and apartment buildings

Delémont has an old town and a castle, and the canton lists its old town among those that call for particular care. If you live within that area, a bathroom is renovated on the inside, but caution is still needed: before drilling through a facade for ventilation, moving a window or altering anything visible from the outside, ask the municipality whether authorisation is required.

Inside an older building, the surprises come mostly from what you cannot see: floors that are no longer level, uneven walls, old pipework, substrates sensitive to damp. A serious tradesperson opens up first, takes stock, then prices the job. Expect the quote to be refined once the old finishes have been removed.

In rental or co-owned buildings, the central issue is the riser. Water supply and waste pipes serve several floors. Any work that touches them concerns the neighbours below and above, and often the managing agent or the administrator.

The most requested bathroom works in Delémont

Depending on the home, requests fall into a few types of work:

  • Replacing sanitaryware: washbasin, WC, taps, vanity unit, often without touching the existing connections.
  • Walk-in shower: it replaces a bath that has become impractical. It requires a correct slope, suitable drainage and careful waterproofing.
  • Bath: replaced, refurbished or removed in favour of a shower.
  • Waterproofing and tiling: the least visible part and the most decisive. Successful tiling over poorly done waterproofing ends up leaking.
  • Ventilation: a wet room without sufficient ventilation develops damp and mould, especially when the windows stay closed for much of the year.
  • Electrics in wet areas: sockets, light fittings and appliances near water are subject to the NIBT rules (the Swiss low-voltage installation standard), which limit what can be installed depending on the distance from the shower or bath.

These works involve a plumber, a tiler and an electrician. In a complete bathroom, they follow one another in a precise order: demolition, pipework, waterproofing, tiling, fitting the appliances, finishing.

Jura winters: what the climate changes for your bathroom

The canton has cold, snowy winters, even if the Delémont valley remains milder than the high-altitude Franches-Montagnes. For a bathroom, this has practical consequences:

  • cold exterior walls encourage condensation, so ventilation and the choice of finishes matter more;
  • electric or hydronic underfloor heating brings comfort on icy tiles, provided it is planned with the tiler and the electrician;
  • a bathroom in an exposed corner or under a roof calls for a look at the insulation before anything is fitted.

If your project involves hot water production, heating or the insulation of walls, look at what the cantonal energy department offers: the canton has a subsidy programme. The conditions vary and depend on the nature of the works; check them with the relevant department before signing, not afterwards.

Staying at home in Delémont: adapting the bathroom to age

Many requests come from owners who wish to stay in their own home. An adapted bathroom reduces the risk of falls and extends independence. The usual adaptations are:

  • a walk-in shower, with no threshold to step over;
  • grab rails fixed to a solid support;
  • a non-slip floor covering;
  • a WC at a suitable height and an accessible washbasin;
  • sufficient lighting and controls that are easy to reach.

In houses in the Sorne or Birse valleys, space is often more generous and the conversion simpler than in an older flat, where every centimetre counts. In all cases, describe the real situation: current mobility, help from another person, whether or not you want to keep a bath.

Permit, landlord, co-ownership: the procedures in Delémont

Three questions come up before ordering anything.

Do you need a building permit? In the canton of Jura, the building permit is issued by the municipality or by the canton depending on the scale of the project. A simple replacement of fittings is in principle not affected. Enlarging the bathroom, a new opening in the facade or a change in an old town building may be. Ask the municipality of Delémont; it will tell you what procedure to follow.

Are you a tenant? Obtain the written consent of the landlord or the managing agent before signing a quote. State what is being replaced, who is paying, and what must be restored when you leave.

Are you in co-ownership? Anything that touches the risers, the facades, the ventilation ducts or the load-bearing walls goes through the administrator or the owners’ meeting. The inside of your unit is freer, but the co-ownership rules may set working hours or noise restrictions.

In a building, also let the neighbours know: water cuts, dust, tradespeople passing through the stairwell. This courtesy avoids a lot of tension.

Preparing your request and comparing quotes

The more precise the request, the more comparable the quotes. Before you request a quote, gather:

  • the type of home (flat, house, old or recent building) and the floor;
  • the approximate dimensions of the room and photos of the existing bathroom;
  • what you want to change: everything, or only the shower, the tiling, the fittings;
  • access: lift, narrow staircase, parking near the building, because transporting materials weighs on the job;
  • your constraints: staying at home, children, periods when you cannot be without a bathroom;
  • the consent of the landlord or the co-owners, if required.

A good quote details each item: demolition and removal of rubble, pipework, waterproofing, tiles and supplies, sanitary appliances, electrics, ventilation, finishing. It states what is supplied by the tradesperson and what you buy yourself, and how unforeseen issues will be handled during the job.

The cost varies mostly with the size of the room, the quality of the appliances and tiles, the condition of the walls and floors once stripped, the moving of pipework, the accessibility of the site and the number of trades involved. Two quotes that seem far apart often come from a different scope: compare the items, not just the total.

Your request is passed on to tradespeople and companies in the region, who will contact you to prepare a free, no-obligation quote. You remain free to compare and to choose.

Other useful pages for your project in Delémont

Updated 29 October 2026

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Frequently asked questions

Do I need a permit to renovate a bathroom in Delémont?
Replacing sanitaryware, tiling or a shower like for like does not usually affect the facade or the structure. As soon as a project changes the exterior, load-bearing walls or the use of the rooms, the question of a building permit arises. In the canton of Jura, it is issued by the municipality or by the canton depending on the scale of the project: find out before you start.
Can a tenant redo their bathroom?
Major alterations require the written consent of the landlord or the managing agent, before any commitment is made. This consent often specifies who pays, what stays in place and what must be restored when you leave. Mention it in your quote request so that the tradespeople take it into account.
Why do shared risers matter in a building in Delémont?
Water supply and waste pipes run through several flats. Moving or cutting them shuts off the water for your neighbours and can affect common areas. In a co-owned building, this goes through the administrator or the owners' meeting; in a rental, through the managing agent.
Can a bath be converted into a shower to stay at home?
Yes, it is one of the most frequent works for staying in your own home. A walk-in shower, grab rails and a non-slip floor make the bathroom easier to use with age. Describe your current and future needs, as the available space and the drainage sometimes limit the options.
Who is involved in a complete bathroom renovation?
Generally a plumber for the water and the fittings, a tiler for the waterproofing and the finishes, and an electrician for the sockets, the lighting and any underfloor heating. A single company can coordinate everything. The quote should state who does what and in which order.