Bathroom Renovation Thun – Cost, Process & Fixed-Price Examples 2026
A complete bathroom renovation in Thun currently costs between CHF 25,000 and CHF 60,000. A pure bathtub replacement starts at CHF 8,000, a shower conversion at CHF 12,000. This guide explains in detail how a bathroom renovation in Thun works, what costs are realistic and where you can save — with fixed-price examples from Thun, Steffisburg, Hilterfingen and Spiez.
As a local plumbing and renovation company in Thun, we handle numerous bathroom renovations every year — from simple bathtub replacements in rental apartments along the Aarequai to full wellness renovations in single-family houses in Hilterfingen and Oberhofen.
Table of Contents
Bathroom renovation Thun – cost at a glance (fixed price 2026)
| Renovation scope | Price (CHF) | Duration |
|---|---|---|
| Bathtub replacement (incl. fittings) | from 8,000–14,000 | 3-5 days |
| Shower conversion (tub out, walk-in shower in) | from 12,000–22,000 | 1-2 weeks |
| Partial renovation (re-tile, plumbing) | from 18,000–35,000 | 2-3 weeks |
| Full renovation standard | from 25,000–45,000 | 3-5 weeks |
| Full wellness bathroom (spa level) | from 45,000–80,000+ | 4-7 weeks |
| Barrier-free floor shower (subsidy possible) | from 14,000–24,000 | 1-2 weeks |
Travel to Thun, Steffisburg, Heimberg, Hilterfingen, Oberhofen and Spiez is included in the fixed price.
Full bathroom renovation Thun – what's included?
A full bathroom renovation in Thun typically includes:
- Demolition: old fittings, tiling, wall lining, lighting
- Plumbing installation: new water and drainage pipes, WC/sink/shower/tub connections
- Electrical work: RCD, new outlets (IP rating), LED lighting, smart home if desired
- Tiling: wall and floor tiles or natural stone (Bündner quartzite, marble) — ca. CHF 100-280/m²
- Fittings: WC (CHF 800-2,500), sink (CHF 400-1,800), tub/shower (CHF 1,500-6,000)
- Furniture: mirror cabinet, vanity, towel rails
- Painting finish, silicone joints, grout
We coordinate all trades from a single source — plumber, tiler, electrician, painter, carpenter. One contact, one contract.
Bathtub replacement Thun – affordable option from CHF 8,000
A pure bathtub replacement in Thun is the cheapest option if you don't want to fully renovate the bathroom but only swap the tub:
- Remove old tub: tub, fittings, connection
- Install new tub: acrylic (CHF 600-1,500), steel enamel (CHF 1,200-3,000) or freestanding (CHF 2,500-8,000)
- Spot-repair wall lining: tile patching, silicone joints
- New fittings: mixer, shower head, wall connection
Fixed price from CHF 8,000-14,000 incl. material and labour. Duration: 3-5 days. Very popular for rental apartments or owner changes.
Shower conversion and barrier-free shower
Shower conversion in Thun — bathtub out, walk-in shower in — has been the most common modernisation in recent years:
- More space in the bathroom (feels 30-40% larger)
- Step-free entry (important for older age)
- More modern look (glass + natural stone + LED)
- Cheaper than full renovation
Fixed price from CHF 12,000-22,000 depending on size, glass quality and floor material. Barrier-free floor shower with step-free entry from CHF 14,000-24,000 — Canton Bern's senior-housing subsidy can cover up to CHF 6,000.
Process step by step
- First contact and free on-site visit (1 day)
- Fixed-price offer (3-5 working days)
- Material selection: tile samples, fittings, furniture
- Construction planning (1-2 weeks lead time)
- Demolition and protection (1-2 days)
- Plumbing and electrical rough-in (3-5 days)
- Wall plaster and substrate prep (2-3 days)
- Tiling (5-10 days)
- Fittings and furniture installation (2-3 days)
- Final cleaning and handover (1 day)
How long does a bathroom renovation in Thun take?
- Bathtub replacement: 3-5 days
- Shower conversion: 1-2 weeks
- Partial renovation: 2-3 weeks
- Full renovation standard: 3-5 weeks
- Wellness bath with sauna/steam: 4-7 weeks
Where to save, where not
Save on:
- Brand choice: Swiss standard brands (Laufen, Geberit, Similor) vs. Italian designer brands
- Tile format: standard 30×60 vs. large-format 60×120
- Furniture: carpenter vanity vs. designer pieces
- Existing pipes if still good (pressure-test first!)
Never save on:
- Sealing per SIA — a leaking bathroom destroys ceiling and walls and costs 5-10x more later
- Plumbing connections — water damage in apartment buildings is a nightmare
- Electrical — RCD is mandatory, not optional
- Ventilation — without exhaust, mould forms within 2-3 years
FAQ: Bathroom renovation Thun
What does a bathroom renovation in Thun cost per m²?
Standard bathroom (8 m²): CHF 3,000-5,500/m² all-in. Small bathrooms (4-5 m²) higher per m² (CHF 4,500-7,000/m²) due to fixed costs.
What does a bathtub replacement in Thun cost?
Pure bathtub replacement from CHF 8,000-14,000 incl. new tub, fittings and spot wall repair. Duration 3-5 days.
Can you renovate the bathroom in an occupied apartment?
Yes — with dust walls, daily cleaning and HEPA extraction. If only one bathroom exists, we phase the work so water and toilet remain usable. For tight spaces, we recommend a hotel or Airbnb for 1-2 weeks.
Are bathroom renovation costs tax-deductible?
In Canton Bern, value-preserving measures (same standard) are fully tax-deductible. Value-adding work (new wellness area, etc.) is deductible at later sale.
Do you offer a guarantee?
Yes — 5-year guarantee on all craft work per SIA standard. Manufacturer warranties apply on fittings and tiles (typically 2-10 years).
Do you also work in Steffisburg, Heimberg, Hilterfingen, Spiez?
Yes — service area: Thun, Steffisburg, Heimberg, Uetendorf, Hilterfingen, Oberhofen, Faulensee, Spiez and Sigriswil. Travel included.
What does a barrier-free floor shower cost?
From CHF 14,000-24,000 incl. underfloor heating adjustment, glass partition and plumbing. Canton Bern's senior-housing subsidy can cover up to CHF 6,000 — we help with the application.
Are natural-stone bathrooms in Thun more expensive?
Yes, significantly. Bündner quartzite or marble on walls and floor: CHF 220-380/m² material + CHF 80-150/m² installation. You get a unique, premium bath. More: natural stone work.
Planning a bathroom renovation in Thun?
Free on-site visit in Thun, Steffisburg, Spiez, Hilterfingen or Oberhofen. Fixed-price offer within 5 working days.
Request a bathroom renovation in Thun · Tel. +41 76 689 09 89