— 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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