It depends what your contract says about defects. Many contracts contain a clause or an annexure that:

• gives the buyer the right to end the contract if certain defects are found;
• requires the seller to compensate the buyer for defects; or
• requires the seller to repair certain defects.

Read your own contract, because the rights depend on its wording rather than on the standard form. Strict time limits can apply, so seek advice as soon as you find a problem.

See Your pre-settlement inspection is important for what you can and cannot raise later.