you can't rely on Google's lead count. you have to connect LSA to actual invoices. Here's the simple way plumbing companies do it:
1. Tag Every Lead: When an LSA call or message comes in, your front desk tags it in your CRM or even a Google Sheet — name, date, job type [drain, water heater, leak], and the LSA lead ID.
2. Track The Outcome: Mark if it was booked, not booked, or spam. If booked, add the tech's invoice amount when the job is completed. This gives you Job Value.
3. Use a Dedicated System: The easiest way is connecting LSA to Housecall Pro, ServiceTitan, or Jobber. It auto-matches the phone number from the LSA call to the final invoice. If you're manual, just match the phone number.
4. Do The Math Monthly:
Revenue from LSA = Sum of all completed job invoices from LSA leads.
True ROI = Revenue - LSA Spend / LSA Spend.
Cost Per Completed Job = LSA Spend / Number of Invoices.
Once you track by job type, you'll know that your $3,200 in LSA spend didn't just generate 40 leads.. it generated 18 completed jobs worth $21,000, with water heater installs driving 70% of revenue.