Defective building materials: claim against manufacturer, supplier or contractor?

The building owner often has a contract with the contractor, not directly with the manufacturer. The first opponent is therefore often the contractual partner.

If the owner specified or purchased the material, the allocation may change.

Before sending a demand, clarify who owed selection, delivery, installation and warning. The focus page on construction contracts and remuneration supports this allocation.

Under section 922 ABGB, the transferor must ensure that the item conforms to the contract. This claim is directed against the contractual partner, often the contractor or seller. Public statements by the manufacturer can shape the justified expectation under section 922(2) ABGB. They do not create a construction contract with the manufacturer.

Section 932 ABGB sets the order of warranty remedies. Repair or replacement come first. Price reduction or rescission follow where the primary remedies are impossible, disproportionate, refused or not completed within a reasonable period. The demand should reflect this order.

For immovable property, section 933 ABGB generally provides a three-year warranty period from handover. The defect must emerge within that period. Claims become time-barred three months after the warranty period ends. Handover records, acceptance and later notice should therefore be reviewed together with the construction-defect deadline check.

Damages under section 933a ABGB require fault by the transferor and may cover the defect itself and further loss. If the client specifies unsuitable material or incorrect instructions, the contractor must warn of the danger under section 1168a ABGB. In a transaction that is business-related for both sides, section 377 UGB also requires inspection and notice within a reasonable period.

Damage may come from the material itself or from wrong storage, processing or installation.

This distinction is central because it decides opponent and burden of proof.

Without technical review, the discussion quickly becomes mere blame. The focus page on construction defects and warranty explains which evidence supports the classification.

Defective material is often removed quickly because the project must continue. That is exactly how evidence can be lost.

Photos, batch numbers, delivery notes, packaging, remaining material and installation records should be secured.

Where risk is high, an expert report before removal or a supervised opening can be sensible. Guidance on evidence preservation in construction litigation supports that step.

Warranty asks about defective performance and resulting rights such as cure or price reduction.

Damages require further review, especially cause, fault and loss.

Both levels may arise together but should be separated cleanly in the demand. The warranty and damages claim check classifies the routes using the key dates and facts.

A manufacturer guarantee can help but does not automatically replace claims under the construction contract. Its scope is in the guarantee terms.

Product liability is a separate topic and does not fit every building material case. It should be reviewed only where a product damage in the legally relevant sense is at issue.

In practice, the contract chain is usually decisive first. Use the deadline check as an additional prompt for urgent action.