How a growing HVAC company collected $43K in outstanding AR in 45 days and cut DSO from 67 to 29 days

$43K in accounts receivable over 60 days old. One office manager handling all invoice follow-up manually — two emails per invoice, then the process stopped. Technicians were not collecting on-site because there was no mobile payment infrastructure. Average invoice aged 67 days from service to payment.

Stripe + ServiceTitan integration for automatic invoice delivery at job completion. Four-touch AR sequence: invoice at job close, payment reminder at 7 days, second reminder at 21 days with late fee notice, escalation to manager queue at 45 days for balances over $1K. Field collection workflow on the ServiceTitan mobile app with Stripe card reader. Payment plan templates for customers with hardship.

DSO reduction combines speed (invoice at close, not 3 days later), persistence (4-touch sequence vs. 2 emails), and field collection (the most effective DSO reducer available). The technician collection workflow required the biggest behavior change — it is now part of job close protocol. The $1K escalation threshold prevented automated sequences from alienating high-value recurring customers.