Apartment Defect Notice
Reporting mold, broken heating, etc.
With this template you give notice of a defect (in a rented flat or purchased goods) and send the letter straight by post – no account, from CHF 2.49. It is important to describe the defect clearly and report it quickly, as short deadlines often apply.
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Suggested subject
Notification of Defects – {{object_address}}
Body preview
Dear Sir or Madam, Defects have appeared in my apartment for which I am not responsible: {{defect_description}} I request that you repair these by {{deadline_date}}. Yours sincerely,...
Giving notice of defects: how it works
Last updated: July 2026Whether faulty goods or a defect in the rented object: the key is to describe the defect clearly, state a date and – depending on the case – demand repair, replacement, price reduction or remedy. For purchased goods, inspection and notice periods apply per contract and law; so report apparent defects without delay.
For a rented object, report the defect to the landlord and, where appropriate, set a reasonable deadline for the remedy. Keep the letter factual and document the defect (e.g. with photos). To prove the report and the date, sending with proof is sensible.
Recommended shipping method
So you can prove the report and the date, we recommend registered mail (from CHF 8.99). Where deadlines apply, proof of posting is valuable. This is a recommendation, not legal advice.
This information is provided as drafting help only and does not constitute legal advice. Deadlines and formal requirements can vary by contract, policy or canton – if in doubt, check with the relevant body.
Facts notice of defects
Overview (without warranty – check contract/law):
- Timing
- report apparent defects without delay
- Content
- describe the defect clearly, state a date
- Demand
- repair, replacement, reduction or remedy
- Documentation
- attach or keep photos/evidence
- Recommended sending
- registered (proof of report/deadline)
How it works
Fill in template
Review PDF
Send via post
Common questions
How quickly must I report a defect?
Apparent defects should be reported without delay. The exact inspection and notice periods depend on the contract and applicable law; so act quickly.
What must the notice of defects contain?
A clear description of the defect, a date and your demand (repair, replacement, reduction or remedy). Documentation such as photos helps.
Who do I address the notice to?
For purchased goods, to the seller; for rental defects, to the landlord or management. State contract or object details.
Can I set a deadline for the remedy?
Yes, depending on the case you can set a reasonable deadline for repair or remedy. Word it clearly.
How should I send the notice?
We recommend registered mail (from CHF 8.99) as proof. Simple sending is possible from CHF 2.49.