The fall that filled itself.
- It’s September at an HVAC shop. Tune-up plans are coming due, and the October weeks are still empty.
- Each renewal gets an email from your own address that mentions last year’s visit and offers two open times. “Yes, Tuesday” books the visit; “What’s included?” gets an answer you approve at lunch.
- Customers who haven’t booked in a year get the same note, and on Friday you get the short list of plans not yet renewed.
The result: the slow weeks fill from customers you already have.