Do I need a permit to renovate a bathroom in Bienne?

It depends on the project. Simply replacing the sanitaryware and tiling is generally done without a permit, whereas a change to the facade, a window or the structure may require one. In the canton of Bern, the permit is issued by the municipality or the prefecture, depending on the case. Check with the relevant department before you start.

Can I convert my bathtub into a walk-in shower in a Bienne flat?

This is a common conversion, but it affects waterproofing and drainage. In an apartment building, it may involve the shared pipe stacks and the neighbours below. Depending on your status, the consent of the landlord or the co-ownership is required. Describe it clearly in your quote request.

Who works on a renovated bathroom?

As a rule, a plumber for the fixtures and pipework, a tiler for the waterproofing and surface finishes, and an electrician for the sockets, lighting and ventilation. The NIBT rules (the Swiss low-voltage installation standard) apply to electrics in wet areas. A single request can cover all of these trades.

Can the bathroom be adapted so I can stay at home as I grow older?

Yes, this is a frequent reason for renovating: a step-free shower, a non-slip floor, grab bars and room to manoeuvre. These points are decided before the work begins, because they affect the waterproofing, the slope and the placement of the fixtures. Mention them in your description.

Is there any financial support for this work?

Cantonal grants mainly concern energy, for example if the renovation comes with a change in hot water production. Contact the cantonal office for the environment and energy of the canton of Bern, which runs the subsidy programme, before signing anything.

Bathroom Renovation in Bienne: Local Guide

A bathroom renovation in Bienne is not prepared in the same way in an old town house, in a rental building in the centre or in a villa on the slopes towards Evilard and Macolin. The service described here is a neutral matching service: you describe your project online, your request is passed on to tradespeople and firms in the region, who get back to you to prepare a free, no-obligation quote.

Whether you are looking for a plumber, a tiler or a firm that coordinates everything, this page gathers what you need to know before launching the project in a bilingual city by the lake and at the foot of the Jura.

The most common bathroom works in Bienne

Housing in Bienne is varied: old houses in the old town, apartment-block districts, villas on the heights. Yet the projects are similar in content:

replacing sanitaryware (basin, WC, taps) that has become old or impractical;
converting a bathtub into a walk-in shower, or the reverse;
redoing the waterproofing under and around the shower or bathtub;
laying new tiles on the floor and walls;
improving ventilation, often insufficient in older bathrooms;
bringing the electrics in wet areas up to standard, under the NIBT rules;
adapting for age: step-free access, grab bars, non-slip floor.

A bathroom generally involves three trades: the plumber, the tiler and the electrician. It is up to you to choose between one request per trade or a single overall request, depending on the scale of the work.

Old town and older houses in Bienne: wet rooms to handle with care

In the old town, older houses hold surprises. Walls are not always straight, service ducts are narrow and the original pipes can be hard to reach. A tradesperson who sees the premises before pricing avoids poor estimates: this is one of the reasons why a quote based on photos and a visit is better than a price given over the phone.

If your building is in an old town area, ask the municipality about possible restrictions. They mainly concern the exterior (bathroom window, ventilation on the facade) and far less the interior, but only checking with the relevant department will confirm this for your address.

In older buildings, a renovated bathroom also raises the question of damp. Proper ventilation, a watertight floor and carefully made connections protect the woodwork and neighbouring walls. Do not skimp on an assessment of the existing state before choosing the finish.

Most people in Bienne live in apartment buildings. In that case, the bathroom is not an isolated room:

the water supply and drainage stacks are shared; touching them may require coordination with the property manager or the co-ownership;
noisy work (drilling, tile removal) directly affects the neighbours, who should be warned, and the house rules must be respected;
a leak during or after the work affects the flat below, hence the importance of well-executed, documented waterproofing.

If you are a tenant, nothing is done without the landlord’s written consent: they decide whether the alteration is accepted, who pays for it and what happens when you leave. In co-ownership, a change affecting the common parts or the appearance of the building may need to go through the owners’ community. Take these steps before signing a quote, not after.

Villas on the slopes towards Evilard and Macolin: comfort, access and staying at home

On the slopes, villas often have a bathroom upstairs and a second in the basement or garden level. Site access matters: a narrow staircase or a sloping street complicates the delivery of fixtures and the removal of rubble, which the tradesperson will take into account in their quote.

It is also in these districts that the question of staying at home comes up. Many owners want to remain in their homes for a long time and use a renovation to replace the high bathtub with a level-access shower, with a non-slip floor and enough space to move around. It is better to think about this from the start: changing the levels, the drainage slope and the waterproofing afterwards is much more work.

Climate at the foot of the Jura and by the lake: heating, ventilation and hot water

Winters are colder here than on the Lake Geneva arc, and the damp of the lakeside is noticeable. This has practical consequences for a bathroom: a poorly ventilated wet room sees condensation settle on cold walls, especially on exposed facades. Good air extraction, a suitable finish and, if needed, a well-sized radiator or towel warmer are worth discussing with the tradesperson.

If the renovation comes with a change in hot water production (water heater, connection to the heating), it may be wise to consult a heating engineer in Bienne as well. Any grants come under the cantonal subsidy programme run by the cantonal office for the environment and energy: check the conditions with them before ordering.

Permits and rules to check in Bienne

In the canton of Bern, the building permit is issued by the municipality or the prefecture depending on the project. Replacing sanitaryware like for like does not in principle involve a heavy procedure, but anything affecting the facade, an opening, the structure or a protected building must be checked beforehand.

A few points to check:

with the municipality of Bienne: whether or not a permit is needed for your specific project;
in the building documents: the co-ownership regulations or the lease;
for electrics: installations in wet areas follow the NIBT rules, and the work must be entrusted to a qualified professional;
for energy: the conditions of the cantonal subsidy programme, if your project falls under it.

Bienne is officially bilingual: you can normally deal with the administration in French or German, and the tradespeople you contact may work in either language. State your preferred language in your request.

Preparing your quote request for a bathroom in Bienne

The more precise your description, the more comparable the quotes will be. Indicate:

the type of home (older house, rental building, villa), the floor and whether there is a lift;
your status: owner, tenant (with the landlord’s consent) or co-owner;
the current state of the room and what you want to change: bathtub, shower, vanity unit, tiles, ventilation;
your accessibility needs, present or future;
your photos and approximate dimensions;
your scheduling constraints, especially if you have only one bathroom.

A good quote details each item: demolition and removal, plumbing, waterproofing, tiling, electrics, ventilation, finishes, as well as the supplies included or not. Ask what is included in the fixtures and what remains at your expense, and how unforeseen issues are handled.

The cost varies with the surface area, the range of fixtures and finishes, the condition of the pipes, site access, the need to redo the substrate or waterproofing, and the number of trades. No reliable figure can be given without seeing the premises: that is the purpose of the quote. Compare several proposals on the basis of the same description rather than the total alone.

Ready to move forward? You can request a quote, free and without obligation, in a few minutes.

Useful pages for your project in Bienne

Bathroom renovation: the general page for the trade;
Works in Bienne: all the works in the city;
Canton of Bern: the cantonal framework;
Carpenter in Bienne: doors, custom furniture, fitted interiors;
Solar panels in Bienne: if you are also renovating the building’s energy;
Heating engineer in Bienne: heating and hot water production.

Updated 29 October 2026