For a home in New Braunfels served by New Braunfels Utilities, submit a residential start-service request at least one business day before your preferred start date.
NBU's residential start-service instructions call for a completed application, a valid driver's license or other ID, and a security deposit if one is required for the account. Check the exact address before making plans around that deadline: this guide covers NBU service, and a New Braunfels address alone does not establish which utilities NBU provides there.
For NBU-served addresses, the timing matters because requested service dates are not guaranteed and requests sent after business hours are processed within one to two NBU business days. Allow for that processing window when choosing when to submit a request. NBU states the one-business-day minimum for the request; it does not promise that submitting exactly one business day ahead will secure the preferred date.
Start with the address
NBU places an Interactive Service Area Map in the Resources section of its service page. Use that resource to check whether the new address is in NBU's service area, then ask NBU to confirm which service or services it can start at that address. The distinction is useful for a move within New Braunfels: the instructions describe how to request NBU service, but they are not a list of every provider for every city address.