Do not wait until the appointment window has passed. Explain what changed, whether the delay affects the whole job, and when you will update them next. If the new time does not work, offer rescheduling under your terms.
Contact the customer as soon as you know the original window is at risk. State the reason briefly, the revised estimate, and whether the delay affects the scope or price; offer a choice if the new time no longer works. Avoid blaming an individual or making an exact arrival promise before checking. After the job, review whether your scheduling buffer or communication process needs adjustment.
When you know the promised window may slip, send a new estimate and let the customer choose whether to wait or reschedule. If the delay affects a later job, contact that customer too instead of transferring the disruption silently. Record repeated causes such as supplier delays and improve your buffer or dispatch process.
Record repeated causes and adjust scheduling or travel buffers. KobStore can show your normal process and service details; create a business page.
