For service at Holt Cat Irving, it is typically recommended to schedule an appointment to ensure that your equipment receives the attention it requires in a timely manner. Appointments help organize the workflow, allowing technicians to allocate the appropriate time and resources for each service request. However, Holt Cat Irving may also accommodate urgent service needs or walk-in customers, depending on their current workload. It is always a good idea to check their current web page for specific details regarding service appointments, as they may provide additional information and contact options. This can help you navigate the process more efficiently and ensure that your equipment is serviced with minimal delays.