— Glossary
CPL
Cost Per Lead — what one form-fill or call costs you.
Total ad spend divided by total leads. Useful for comparing channels, but worthless without booked-call rate and close rate downstream.
CPL — Cost Per Lead — is the dollar amount you pay to generate a single lead. For service businesses, CPL must be tracked by source and lead quality, not just raw volume. A $20 lead from a cheap Facebook form that’s out-of-area or low-budget is worse than a $120 inbound Google call from a homeowner ready to schedule. Break down CPL by channel (search, social, LSA), campaign, and lead type (emergency, maintenance, replacement). Evaluate CPL against downstream metrics: show-rate, close-rate, and LTV, because a higher CPL that produces higher-value, high-close-rate leads can be more profitable. Use lead scoring (budget, timeline, service area) to compute qualified CPL vs raw CPL. Also account for wasted impressions: poor targeting raises CPL by producing unqualified clicks. Keep an eye on time-of-day and ad creatives — CPL will spike at night or weekends for some services. Finally, set acceptable CPL bands based on your margins and average job value. If your average roofing job nets $6,000 and you average a 10% close rate, a higher CPL is tolerable than for a $400 gutter clean.
- A local HVAC shop calculates CPL of $45 on Facebook but only $180 for qualified leads after filtering for budget and service radius.
- A marine-detailing campaign shows $12 CPL on click volume, but many leads are out-of-area, inflating effective CPL.
- An epoxy flooring business sees Google Search CPL at $110 with a 30% close rate, yielding better CPA than a $30 CPL campaign with 2% close rate.
Focusing solely on raw CPL and ignoring qualification; the common error is cutting budgets where CPL is higher without checking conversion quality downstream.
— CPL in practice
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