Chapter 17 · Test paid acquisition

Customer Acquisition Cost: Know What a Customer Can Cost

How to calculate customer acquisition cost from your own job economics: the maximum allowance per job and per inquiry, with a calculator.

All chapters
  1. 1. Attention or conversion
  2. 2. Customers to attract
  3. 3. Offer and proof
  4. 4. Choose your channels
  5. 5. First customers
  6. 6. Past customers
  7. 7. Referrals
  8. 8. Google reviews
  9. 9. Local marketing
  10. 10. Referral partners
  11. 11. Commercial clients
  12. 12. Bids and tenders
  13. 13. Google Business Profile
  14. 14. Service and location pages
  15. 15. Hiring an SEO company
  16. 16. Content from your jobs
  17. 17. Customer acquisition cost
  18. 18. Google Ads
  19. 19. Local Services Ads
  20. 20. Facebook ads
  21. 21. Lead marketplaces
  22. 22. Quiet season
  23. 23. A website that gets inquiries
  24. 24. From inquiry to contract
  25. 25. Measure your marketing
  26. 26. Outsource marketing
  27. 27. By business type
  28. 28. Marketing plan
  29. Marketing plan template
  30. Campaign test brief
  31. Message templates
  32. Weekly marketing review
On this page
  1. Know whether you are ready to pay for attention
  2. Calculate what a customer can cost

Know whether you are ready to pay for attention

Paid advertising can accelerate exposure. It can also accelerate the cost of an unclear offer, weak proof or unanswered phone. Before buying traffic, make the customer journey work at least once from beginning to end.

Choose one service and a realistic area. Prepare a relevant destination page or lead form, a working contact route, a response owner and a record of outcomes. Know the difference between a click, a form submission, a genuine inquiry, a suitable inquiry, a quote and a booking.

Set a test you can afford to learn from

Write the hypothesis: “People searching for [service] in [area] will inquire through this page, and enough will fit to justify the acquisition cost.” Decide the total amount you can risk, including management fees, creative, tracking and your own handling time.

Do not use money needed for committed delivery or essential bills as an experiment budget. If the likely cost of a meaningful test exceeds what you can risk, choose a more direct route while building evidence.

Define the review before launch

Check technical delivery immediately: the correct area, page, phone, form and notifications. Review inquiry quality early. Evaluate bookings after enough time has passed for the normal buying cycle. A campaign selling long renovations should not be judged only on deposits received in its first week.

Keep a firm spending boundary and check actual billing. Platform daily budgets may be averages rather than hard daily caps. For most Google Ads campaigns, daily spend can reach twice the average daily budget, subject to the monthly limit described by Google. [P06]

Your output: a one-page test brief with service, area, message, destination, cost limit, owner and decision date. If a provider cannot explain these, the campaign is not ready. Paying for attention should be a deliberate business test, not a response to a frightening gap in the calendar.

Calculate what a customer can cost

A cheap lead can be expensive if almost none become profitable work. A costly inquiry can be worthwhile if it fits, converts and leaves enough contribution. Use your own economics before comparing advertised lead prices.

Here is a fictional example, excluding tax. A job sells for $5,000. Direct delivery costs, including fairly costed labor, materials and job-specific expenses, are $3,200. That leaves $1,800 before acquisition, overhead and profit.

Suppose you need $1,200 of that amount for overhead contribution, risk and profit. The remaining $600 is the maximum all-in acquisition allowance under these assumptions. It is a planning ceiling, not a recommendation to spend it all.

Convert the allowance into a lead limit

If one in five genuine inquiries becomes a booked job, the implied all-in allowance per genuine inquiry is $600 multiplied by 20%, or $120. If handling time and allocated management costs consume $30 per inquiry, the media allowance is $90.

Change in assumptionEffect on the media allowance
Win rate falls to 10%$600 x 10% minus $30 = $30
Win rate remains 20%$600 x 20% minus $30 = $90
Win rate rises to 30%$600 x 30% minus $30 = $150

Use the same definition of inquiry throughout. Do not apply a quote-to-win rate to raw form submissions. Account for cancellations and jobs that never start. Update estimated delivery costs when actual costs become available.

Keep revenue and profit separate

A $1,000 campaign producing $8,000 of booked revenue has an 8:1 revenue-to-media ratio. That does not tell you whether it was profitable. Include delivery, management, selling effort and collection risk before celebrating.

Avoid using speculative lifetime value to justify losses you cannot fund. Repeat work is valuable when it is observed and deliverable. Until then, make the first-job economics clear and show repeat business separately.

Your output: a maximum acquisition allowance based on a typical suitable job, plus a more cautious scenario. Let this shape the test budget and stopping decisions.

Cost per customer calculator

The chapter’s method with your own figures: what a booked job can cost to win, then what you can spend per genuine inquiry.

Left before acquisition
$1,800
Maximum acquisition allowance per booked job
$600
All-in allowance per genuine inquiry
$120
Media allowance per inquiry
$90

A planning ceiling before tax, not a recommendation to spend it. Use the same definition of inquiry throughout.

Put it in place

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Vision sets up the journey from inquiry to signed quote for businesses that sell on quotes: inquiry page, instant replies, follow-ups that stop when the client answers. Start with the free 3-minute diagnostic.

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