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windows quote: is the price right?

For “windows” work, a typical Swiss quote ranges from CHF 4'300 to CHF 12'300 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: 4 · 1003 · House

Low

CHF 4'300

Central

CHF 7'700

High

CHF 12'300

Items a complete quote must include

  • Removal of existing work

    Without priced removal, costs often rise at start.

  • Glazing type and Uw value

    Required for grants.

  • Sills and reveals

    Often forgotten finishing work.

  • Blinds or shutters

    Removal/refitting sometimes extra.

  • Sealing and airtight joints

    Key to energy performance.

  • Waste disposal and landfill fees

    Skips and fees can exceed CHF 1,000.

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 “Glazing type and Uw value” included in the price?
  3. Is “Sills and reveals” 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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