One company
Strip-out, plumbing, waterproofing and tiling from the same company — no hand-over point where things get stuck.
Bathroom renovation in Winterthur.
Complete bathroom renovation in Winterthur — from strip-out to acceptance from a single company, with a test report for the pipes and a 5-year warranty.
Bathroom renovation Winterthur — complete renovation from strip-out to acceptance
Three firm commitments.
With a test report
Pressure and leak test of the new pipes, photos of the waterproofing before it is closed — you receive both.
Fixed handover date
The date is in the contract, not in a verbal promise. 5-year warranty from acceptance.
Bathroom at a change of tenant.
In Winterthur, the bathroom is usually one part of the refurbishment, not the only job — so its date depends on the handover date of the whole flat. That is why we fit the bathroom renovation into the rhythm of the other trades: strip-out while the painters are not yet there, pipes and waterproofing before the floors, installation at the end. For the property manager, that means one date instead of four and an invoice that follows the quote item by item.
How a complete renovation runs.
Six steps, always in this order. If one is skipped, it only shows years later — usually as damp.
- 01
Strip-out back to the shell
Old fixtures, tiles and substructure come out; rubble is removed as we go.
- 02
New water and waste pipes
Laid and checked with a pressure and leak test. The report goes to you.
- 03
Pre-wall installation
WC, cistern and niches built into the wall — the plumbing disappears and you gain storage space.
- 04
Bonded waterproofing
Applied before tiling and photographed before it is covered. Without this step, a level-access shower is not watertight.
- 05
Tiles and grout
Floor and walls, large-format or small, according to your choice of materials.
- 06
Installation and acceptance
Taps, mirror, lighting, cleaning — handover with an acceptance report.
What it costs.
For a complete bathroom renovation in Winterthur we expect CHF 8'500–19'000 for labour — Dismantling, new pipework, bonded waterproofing, wall and floor tiles, WC, washbasin, shower — large formats and bathtub at the upper end. Materials (tiles, fixtures, fittings) come on top, as you choose. Travel is a fixed item in the quote, known in advance.
- On-site survey and advice
- Binding quote, item by item
- Waste and packaging from our work
- Pressure and leak test with report (plumbing)
- Site cleaning and broom-clean handover
- 5-year warranty from acceptance
Bathrooms from our archive.
From our photo archive — every image can be opened.
Plumbing
Bathroom in green marble
Zurich
Plumbing
Bathroom with walk-in shower
Reference project
Tiling & flooring
Natural stone, built-in wall units
ZurichBuilding permit.
In Winterthur, the city's building permits office (Amt für Baubewilligungen, Pionierstrasse 7) is responsible. Under § 1 of the cantonal Building Procedures Ordinance (Bauverfahrensverordnung, BVV), bathroom, laundry and toilet installations as well as water and electrical connections that are not visible from outside normally need no building permit in the building zone — nor does removing interior partition walls between living rooms. Changes of use and structural changes beyond that, for example to the facade or load-bearing walls, do require a permit (§ 309 PBG). We clarify your case before work starts and confirm the outcome in writing. A bathroom that stays in the same place and needs no new pipe through the load-bearing structure is usually straightforward.
A completed bathroom.
Bathroom — green marble and brass
A watertight, fully documented bathroom in three to four weeks. The owner holds the test report and photos of the pipes taken before the walls were closed.
Frequently asked questions.
What we are asked most often before a bathroom renovation in Winterthur.
Does this run alongside painting and flooring?
Yes, that is the normal case. All trades come from the same company and are planned by one site management team.
Is the time between two tenancies enough?
We give you the binding date after the survey. If it is too tight, we tell you beforehand — not in the last week.
How much does a bathroom renovation in Winterthur cost?
For a complete bathroom renovation we expect CHF 8'500 to 19'000 for labour — depending on size, the condition of the pipes and the standard of finish. Tiles, fixtures and fittings come on top, as you choose. Travel from Zurich-Altstetten (about 30 minutes) is a fixed item in the quote.
Does a bathroom renovation in Winterthur need a building application?
If the bathroom stays in the same place and the new pipes are not visible from outside, normally not (§ 1 BVV). A building application is needed if the use changes or if the facade or load-bearing walls are affected. The city's building permits office makes the binding decision; we clarify this before work starts.
Do you also renovate bathrooms for private owners in Winterthur?
Yes. Whether it is a condominium, a detached house or a rental property, the process is the same: site visit, fixed-price quote within 48 hours, date in the contract.
How long does a bathroom renovation take?
On the reference project (bathroom in green marble) it took three to four weeks from strip-out to acceptance. We give you the binding date after the survey on site; it then goes into the contract.
Can we use the bathroom during the work?
No. During a complete renovation the bathroom cannot be used from removal to installation. If the property has only one bathroom, we plan this with you in advance.
Who buys the tiles and fixtures?
As you prefer. We can source everything, or you supply the materials and we install them — either way, the labour is shown separately in the quote.
Do you also renovate several bathrooms in a series?
Yes. Same materials, same process, flat by flat — so the effort per bathroom stays predictable and the flats can be let again one after another.
Related:
What does it cost? Guide prices in 30 seconds.
Choose an area, choose a service, move the slider — you see the guide price for the labour straight away. Materials and VAT come on top; the fixed-price quote is binding.
Area
Service
Guide price for Painting walls · 40 m² wall area
CHF 720 – 1'000
CHF 18–25 per m²
Two coats, covering included (paint as materials extra)
- Labour only · materials extra · excl. VAT
- Budget range — not a binding total price.
Unit prices for the labour from our 2026 price list (lower price segment), excl. VAT. The higher figure applies in difficult conditions. Materials, disposal of strip-out material, crane, scaffolding and permits come on top. The guide price does not replace a site visit.
Let's talk about your project.
The consultation is free. You get a confirmation straight away, and we call you back within one hour (Mon–Fri 08:00–18:00).