A cheaper quote isn’t always the best. To compare two quotes, you must first check that they describe exactly the same work, then check the company, the deadlines and the payment terms. Here’s how to do it, step by step.
Step 1: request comparable quotes
Send the same project description to each tradesperson: surface area, preferred materials, photos, access restrictions. Two or three quotes are usually enough. With RenovSwiss, you describe your project just once and the tradespeople respond on the same basis.
Step 2: Check the content, line by line
A good quote is detailed. It must specify:
| What to check | Why it’s important |
|---|---|
| A precise description of each item | To know exactly what is included |
| Quantities and units (m², items, hours) | To compare unit prices |
| Materials, brands and ranges | Two types of tiles can vary greatly in price |
| Preparation, demolition and waste disposal | Often overlooked in the cheapest quote |
| VAT (8.1 per cent) | Check whether prices include or exclude VAT |
| Timeframes and start date | To plan ahead and avoid delays |
| Validity period of the quote | Material prices are subject to change |
| Terms of payment | Deposit, interim payments, final balance |
Put the quotes side by side in a table, item by item. Any discrepancies will be immediately obvious: a missing item, a different quantity, or a material from a different range.
Step 3: Check the company
- Company register: check the company on Zefix (name, legal form, address, date of registration).
- Professional indemnity insurance: ask for proof of cover.
- References: photos of similar projects, customer reviews, length of time in business.
- Qualifications: Federal Certificate of Competence (CFC), Federal Master’s Certificate, industry-specific accreditations depending on the trade.
Step 4: Red flags
- a price significantly lower than others’ without explanation;
- a vague quote, with flat-rate charges without any details;
- a large deposit requested before work begins;
- pressure to sign immediately;
- no address or telephone number listed in the Companies Register;
- payment in cash without an invoice.
Step 5: Signing the contract and monitoring the work
Before signing, set out in writing the price, the timetable, the payment terms and the guarantees. During the works, any changes must be set out in a written amendment stating the price. Upon completion, carry out a final inspection of the works with the tradesperson and note any defects in a report.
Your rights in the event of defects: what’s changing in 2026
Since 1 January 2026, Swiss law has provided better protection for clients for contracts entered into on or after that date:
- 60 days to report a defect, instead of the previous requirement for ‘immediate’ notification. This time limit cannot be shortened by contract.
- A five-year limitation period for defects in building works; this period can no longer be reduced by contract.
- If the contract refers to the SIA 118 standard, it provides for a two-year period to report defects following handover.
Source: CMS. This information is not a substitute for legal advice.