A useful defect notice identifies the problem, the affected work and the response requested. It also helps preserve evidence for the next step.
Archive article, reviewed and updated on 12 November 2026. The original publication date is retained.
Describe the condition precisely
State the location, symptoms and when the issue appeared. Photographs, plans and a clear chronology are more useful than a general allegation of poor work. Avoid destroying evidence through immediate replacement unless urgent protection requires action.
Preserve the contractual remedy
Assess whether and how the contractor must be given an opportunity to rectify. Set an appropriate deadline where required and keep proof of receipt. If the deadline is disputed or limitation is close, obtain a procedural assessment rather than sending repeated informal reminders.
Four practical examples
Illustrative scenarios: the appropriate steps depend on the contract, evidence and applicable law. These are not reports of client matters.
Loose tiles
Identify the rooms and areas affected and record the condition before removal.
Intermittent water ingress
Keep dated records of weather and the observed entry points.
An urgent hazard
Take proportionate protective measures while documenting why delay was unsafe.
A contractor denies responsibility
Arrange a focused investigation of cause and contractual scope.
Further guidance
Legal framework & further reading
Reviewed: 12 November 2026. Statutory references are to German law unless stated otherwise.