If the work is defective, the customer, if the prerequisites of the following provisions are met and to the extent not otherwise specified, may
1. demand cure as defined in section 635,
2. remedy the defect themselves and demand reimbursement for required expenses as provided for in section 637,
3. rescind the contract on the basis of sections 636, 323 and 326 (5), or abate the price under the terms of section 638, and
4. demand compensation of damages in accordance with sections 636, 280, 281, 283 and 311a, or reimbursement of futile expenses as defined in section 284.