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bathroom / wc quote: is the price right?

For “bathroom / wc” work, a typical Swiss quote ranges from CHF 10'800 to CHF 55'700 including VAT for a mid-sized project. Here are the items it should contain and the questions to ask.

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Reference price

Typical project: 6 m² · 1003 · House

Low

CHF 10'800

Central

CHF 28'700

High

CHF 55'700

Items a complete quote must include

  • Removal of existing work

    Without priced removal, costs often rise at start.

  • Waste disposal and landfill fees

    Skips and fees can exceed CHF 1,000.

  • Waterproofing under tiles

    Prevents water damage, especially walk-in showers.

  • Plumbing and connections

    The most frequently underestimated item.

  • Fixtures listed (brand, model)

    A “standard WC” can cost CHF 300 or 1,500.

  • Electrical connection

    Often subcontracted and missing from the main quote.

  • Ventilation

    Prevents mould in windowless rooms.

Common pitfalls

  • A deposit above 30% before work starts.
  • Lump sums without quantities or unit prices.
  • No brand or model for equipment.
  • No mention of VAT, validity or timeline.
  • Disposal, scaffolding or connections missing.
  • A price far below other quotes, unexplained.

Questions to ask the contractor

  1. Is “Removal of existing work” included in the price?
  2. Is “Waste disposal and landfill fees” included in the price?
  3. Is “Waterproofing under tiles” included in the price?
  4. Could you break down the lump sums (quantities, unit prices, materials)?
  5. Which warranty applies (SIA 118, duration)?

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