21. September 2025

Dealing with construction defects and warranty claims

How builders and site managers can reliably identify defects and take appropriate action


Construction defects as a challenge in the construction process

A construction project is only considered successfully completed when it is handed over free of defects. Nevertheless, construction defects, i.e. deviations of the actual condition from the contractually agreed target, occur frequently and pose major challenges for all parties involved. The correct identification, documentation and professional management of construction defects are crucial to ensure construction quality and legal certainty.

Rights and obligations in the event of construction defects

After the building has been accepted, the so-called warranty period begins, usually lasting five years, during which the client has the right to claim defects from the construction company. The construction company is obliged to hand over the building free of defects and to be liable for the work carried out, provided that a defect can be proven. Typical warranty claims include:

  • Subsequent performance: rectification of defects by repair
  • Self-performance: If the construction company does not respond in a timely manner, the client may arrange for the defects to be remedied themselves and demand compensation
  • Withdrawal from the contract or reduction: In the event of significant defects, the contract may be rescinded or the price reduced
  • Damages: Additional claims may exist for consequential damages resulting from construction defects.

Observe documentation and deadlines

Careful documentation is essential for successfully dealing with construction defects. Defects should be recorded in writing with photos and reported to the construction company as soon as possible with a reasonable deadline for rectification. The warranty period begins with acceptance, which is therefore a critical moment. It is advisable, especially for larger construction projects, to consult an expert in order to identify and record defects at an early stage.

Dealing with complexities and disputes

As construction projects often involve different companies, it is important to clearly assign responsibilities. Only the party responsible for the defect must pay for its rectification. If delays, disputes or even refusal to rectify defects occur, legal advice and, if necessary, rapid legal clarification are advisable. Insurance policies such as warranty bonds can provide additional security for builders.

Prevention and professional support

Close support during the construction phase, regular inspections and clear contractual agreements help to avoid construction defects as far as possible. Companies and site managers should focus on transparent communication and rapid response in the event of defects in order to complete construction projects successfully and sustainably.

3XPERTS – your partner for dealing with construction defects and warranty claims

We support builders, construction managers and companies with comprehensive expertise and practical solutions, from early defect detection and legally compliant documentation to coordinated defect rectification. Together, we ensure that your construction projects meet the highest quality standards and that legal risks are minimised.

Would you like to complete your construction projects safely with experts at your side?
Contact us at info@3xperts.com or via our digital contact form. Let’s work together to improve the quality of your construction sites and legal certainty.

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