How a window-cleaning business saved 4+ hours of admin a week

The problem

Every customer’s next visit and service follow-up was tracked by hand. It took hours each week, and missed renewals meant lost income.

The solution

A system in Google Sheets and Apps Script holding customer records, with configurable service intervals, due dates calculated automatically, scheduled reminders, and weekly and on-demand PDF reports emailed to the owner.

The result

• More than 4 hours of admin saved every week
• No manual calculation errors
• Every customer followed up on time

The same system is now available to other repeat-visit trades as the Service Reminder System.