Tex. Prop. Code § 92.061
The duties of a landlord and the remedies of a tenant under this subchapter are in lieu of existing common law and other statutory law warranties and duties of landlords for maintenance, repair, security, habitability, and nonretaliation, and remedies of tenants for a violation of those warranties and duties. Otherwise, this subchapter does not affect any other right of a landlord or tenant under contract, statutory law, or common law that is consistent with the purposes of this subchapter or any right a landlord or tenant may have to bring an action for personal injury or property damage under the law of this state. This subchapter does not impose obligations on a landlord or tenant other than those expressly stated in this subchapter.
Tex. Prop. Code § 92.061