Plumbing Plan: Does the Callout Cover the Return Visit?

A callout charge is useful only against the complete job: travel, diagnosis, parts, related return work and the collected customer payment. Count one completed job once, even when it needs two visits.

One small margin can disappear in return work

Original assumptions, $ per week. Twenty-four completed jobs sell for $150 each. Each normally uses two paid technician-hours at $25 and $30 of parts, for $80 direct cost. Those wages are variable in this case; the separate $1,600 operating commitment excludes them. Fifty-six technician-hours are available after other obligations.

Sales are $3,600, direct costs $1,920 and contribution $1,680. The result after the operating commitment is only $80. Unit contribution is $70, so 23 whole jobs cover $1,600; 22 leave a $60 shortfall. The normal two-hour scope allows at most 28 jobs within the selected hours.

Now assume four of the 24 jobs each require an additional two-hour return, with no extra customer charge or parts. Eight extra hours cost $200, turning the weekly result into negative $120. The work uses all 56 available hours. There is no remaining time for four extra sales just because four return visits occurred.

Follow receipts by customer type

The final $80 is consistent with the operating result, but $1,720 must be funded after the assumed immediate receipts. If all four returns are paid before commercial collection, that gap rises to $1,920 and the final result is negative $120.

Link each job card to every visit and receipt. Check access, parts availability and included return terms before changing the callout price. Use actual paid-hour arrangements: if the roster is fixed, return time consumes capacity even where it creates no extra wage payment. The Plumbing Financial Model supports the broader service and staffing forecast.