Annual furnace and AC inspection reminder tied to the install date

Track the install or last service date for each customer's HVAC system and send an email exactly one year later reminding them an annual inspection is due, with a direct link to book. Mention the specific system type, such as a gas furnace or heat pump, in the email.

Why it works: Anchoring the reminder to the customer's own install date rather than a generic calendar month makes the timing feel personal and specific to their equipment.