A plumbing business owner sits down on the first of the month and looks at a $4,200 marketing invoice. Google Ads, Local Services Ads, a Yelp subscription, a Facebook boosted post, and a Nextdoor sponsored placement. The question that decides whether next month's spend goes up, down, or sideways is which of those five line items actually produced a paying customer. Most plumbing businesses cannot answer that question with anything sharper than a guess, and the guess is usually wrong.
The median plumbing contractor pays $333 to acquire a paying customer and converts 18.4% of leads to closed jobs at a $1,680 average ticket. At 20-25% net margin, the per-job profit is around $370, which means the median plumber is making about $37 in profit on each new customer's first job. The whole shape of the marketing budget depends on whether each channel is producing customers at or below that $370 break-even.
Six reports turn plumbing marketing from a guessing game into a managed system. Each section below names one of them, what it tells you, and the marketing decision it should drive.
Lead Source Attribution
The foundation report is lead source attribution: every inbound call, form fill, and chat message tagged with the channel that produced it. Without source tagging, the marketing invoice is unreadable. With it, the channel mix gets adjusted every month against real numbers. The mechanical requirement is a unique phone number per source (Google LSA gets one number, Google Search Ads gets another, the website gets a third, Nextdoor gets a fourth, Yelp gets a fifth), all routed through a call-tracking service like CallRail or CallTrackingMetrics that logs every ring. Companion read: the social media stack that sits inside the broader channel mix.
What the report shows: Lead Volume by Source, with date stamps so seasonality patterns surface. The marketing decision: any source producing fewer than 5 leads per month at a meaningful spend level either needs more budget to clear the noise floor or needs to be cut.
Conversion by Source
Lead volume by itself can be misleading. A channel that delivers 40 leads at a 5% close rate produces fewer customers than a channel that delivers 12 leads at a 35% close rate, but the line item that says "40 leads" looks like the winner on the marketing report. Conversion by source is the corrective. Current benchmark data shows wide variation across channels. Google Local Services Ads convert at 31% lead-to-customer versus 12% for traditional Google Search Ads, because the LSA format only charges when the prospect actually calls and the intent signal is high. Emergency-search leads from any channel convert at 40-50% when response time stays under two minutes. Shared web form leads (the kind that come from broad lead-gen networks) convert at about 10%. Nextdoor recommendation leads sit closer to the LSA range when the recommendation is unsolicited and the response is fast.
Cost Per Acquired Customer
Lead Source Attribution gives you the cost per lead. Conversion by Source gives you the close rate. Multiplying them produces Cost Per Acquired Customer (CAC), and CAC is the number that decides whether a channel is making the business money or losing it.
The median plumbing CAC across all paid channels is $333 per customer, with the operational floor sitting at the per-job profit of around $370. Channels producing customers above $370 lose money on the first job and only earn back through repeat work; channels below $370 are profitable from the first call. Housecall Pro's 2026 plumbing PPC benchmarks and other industry data sources consistently land in this range.
Pull the CAC report monthly, sort it by channel, and the answer to "which $4,200 worked" goes from a guess to a single column of numbers. The marketing decision that follows is direct: pull budget from channels above $370 CAC, push budget to channels below $250 CAC, and hold steady on the middle band while the data stabilizes. Companion read: the broader lead-generation framework that CAC reporting sits inside.
Service Mix by Neighborhood
Geographic Heat Map
The list of customers, plotted on a service area map and color-coded by frequency, almost always shows a clear hot zone and a clear cold zone. The hot zone gets the highest-density routes and the highest yearly recall rate. The cold zone produces sparse calls and burns truck time. The marketing decision: spend the local advertising budget heavily on the hot zone's adjacent neighborhoods (geographic expansion is cheaper at the edges of an established service area) and pull paid spend out of the cold zone entirely.
Service Category Distribution
The same customer list, sliced by service category, reveals whether the business is over-indexed on emergency repair (high-margin, no repeatability), drain cleaning (steady, mid-margin), or installation (high-ticket, long sales cycle). A plumbing business doing 70% emergency repair has a different marketing strategy than one doing 60% remodel installation. Each service category responds to a different channel mix, and the report tells you which is producing.
Customer Lifetime Value
First Job Value. The opening ticket. For the median plumbing business this is around $1,680, with emergency repair tickets averaging higher and routine maintenance averaging lower. First Job Value times the close rate sets the immediate per-lead value.
Annual Repeat Value. The amount the same customer spends in the twelve months after the first call. For plumbing businesses with active maintenance plan programs, this number is meaningfully larger than the First Job Value alone. The industry benchmark is that 10% of acquired customers should sign onto a maintenance plan within 90 days of the first job, and those plan customers carry 3 to 5 times the LTV of one-and-done customers.
Multi-Year Customer Value. The total spend across the full relationship. Most residential plumbing customers stay with the same business for 4 to 7 years if the first three jobs go well, which means the multi-year LTV usually lands between $4,000 and $12,000 depending on home type and service mix. The marketing decision: channels that produce maintenance-plan-adopting customers (referral, repeat customer reactivation, neighborhood saturation) carry a 3-5x LTV multiplier over one-call-and-done channels and justify higher CAC tolerances.
Reading the Reports Each Month
The discipline that turns the six reports into actual marketing decisions is monthly motion. The strongest plumbing businesses block a fixed two-hour window on the calendar (usually the first Tuesday of every month) and pull the same five reports in the same order: Lead Source Attribution, Conversion by Source, Cost Per Acquired Customer, Service Mix by Neighborhood, and Customer Lifetime Value. The questions asked are equally fixed: Which channel grew, which shrank, which CAC crossed $370, which neighborhood added density, which customers became maintenance-plan signers.
A worked example makes the motion concrete. In January the report shows Google LSA producing 22 leads at $48 each ($1,056 spent) closing at 31% for 7 customers, putting CAC at $151, well below the $370 break-even. In the same month, the Yelp subscription cost $400 and produced 6 leads closing at 8% for 1 customer, putting CAC at $400, just above break-even. The February budget cuts Yelp, redirects the $400 into LSA, and the resulting LSA budget of $1,456 produces 30 leads, 9 customers, and a CAC that holds at the $150 range. Total customers move from 8 in January to 9 in February for the same total spend, and the year-over-year compound of that single decision is roughly 12 additional paying customers across 12 months at a stable cost.
Six months of this cadence is enough to take a plumbing marketing program from a guessing game to a measurable system, and twelve months produces a baseline trustworthy enough to make hiring, fleet, and expansion decisions against. Pair the reporting discipline with a dedicated office administrator running the call-tracking setup, a strong primary website serving as the conversion destination, a review pipeline feeding the channels that depend on social proof, and the comprehensive Hook Agency plumbing marketing blueprint as the broader strategic framework these monthly reports operate inside.
Smart Service for Plumbing
If you are running a plumbing business and want a software stack that handles scheduling, dispatch, customer history, mobile invoicing, recurring maintenance plans, and the marketing-source tagging that makes every one of these reports possible, Smart Service integrates with QuickBooks Desktop and QuickBooks Online and iFleet keeps techs in the field synced with the office. Try a free demo to see how it fits!
