Are you losing customers you already earned?

A workbook you can use without a sales call.

Eight pages with 64 fill-in fields. Type into the PDF in a reader that supports forms, save a copy, or print and write. The companion CSV follow-up log opens in a spreadsheet app. Both are free, with no email or signup required.

1. List every estimate from one month that did not turn into booked work.
2. Count them, add up the amounts, and record how many you contacted again.
3. Set three follow-up touchpoints, each with a person and a date.
4. Choose one change, name who owns it and set a review date.

The PDF does not calculate for you and contains no invented customer or dollar figures. Use the free Job Cost Calculator when you want to check what a finished job left behind.

A meaningful share of contractor income sits in estimates already written.

ServiceTitan's 2025 Residential Services Report was fielded by Thrive Analytics, an independent research firm, across more than 1,000 residential contractors in HVAC, electrical, plumbing and roofing. Among contractors doing $10M or more in revenue, 47% said following up on unsold estimates delivers 11 to 15% of total income. Among businesses describing themselves as thriving, 39% reported 1 to 15% of additional revenue from estimate follow-up alone.

Read that plainly. Some of that income is sitting in estimates that were never fully closed out. Not new leads. Estimates already written. That is national survey context across the trades, not a local plumbing benchmark and not a DIGITO customer result.

Most service frustration traces back to communication, not workmanship.

Housecall Pro surveyed 1,040 U.S. homeowners in October 2025, screened as household decision-makers and balanced to Census standards. About 20% could not remember the last time a contractor impressed them with service. 72% said they would pay up to 10% more for a contractor with a better customer-service reputation.

The detail worth acting on is smaller than either headline. Nearly 60% said they appreciate seeing a technician's name and photo before the visit, and text updates as a job progresses are increasingly the expectation rather than a bonus. A name, a photo, a text when the tech is on the way, and one message after the job covers most of what homeowners say is missing.

The retention number everyone quotes is not the one that was measured.

In 1990, Frederick Reichheld and W. Earl Sasser published Zero Defections: Quality Comes to Services in Harvard Business Review. Cutting customer defections by 5% raised profits by 30% to 85% across the three industries they measured: a bank branch system, an insurance brokerage and an auto-service chain.

The range quoted across this industry is wider, at 25% to 95%. That comes from a 2014 Harvard Business Review article by Amy Gallo summarizing later work by Reichheld at Bain and Company. Both are real. They are not the same source, and the 25% and 95% endpoints do not appear in the 1990 article. Most guides in this industry credit the wrong one.

Why the swing is large either way: a repeat customer skips the cost of being found, generally needs less convincing on price, and is more likely to refer someone else. The same job costs less to sell. Published ranges across banking, insurance and auto service do not transfer directly to a plumbing or HVAC business, so treat them as a reason to measure your own repeat rate rather than a result to expect.

Three touchpoints, each with an owner and a date.

• The unsold estimate, day 3 to 5. Confirm they got it, ask what is unclear, and offer one alternative if price was the hang-up. This is the step the 47% figure points at.
• During the job, in real time. The tech name and photo before arrival, and one text when the job wraps with what was done.
• Three to six months after the job. A seasonal reminder, a maintenance offer, or a question about whether everything is still holding up.

Track it on paper, in a spreadsheet, or in whatever software you already have. Pick three dates, put them on the calendar for every job, and do not skip the third. It is the one most owner-operators drop, and the one that separates a repeat customer from a single transaction.

In Southern California, the follow-up may need to be in Spanish.

About 4% of U.S. households are Limited English Proficient, and roughly 70% of those speak Spanish, per Urban Institute data cited in ServiceTitan's 2025 Consumer Trends in the Trades report. Locally the share is much higher. Census QuickFacts puts San Diego County at 35.7% Hispanic or Latino, roughly 1.17 million people. Imperial County is 86.8%, with 75.3% of residents age 5 and older speaking a language other than English at home.

The Bureau of Transportation Statistics counted 15,274,409 personal vehicles entering the U.S. at San Ysidro in 2025, a 20.1% share of the southern-border total and the busiest land crossing in the Western Hemisphere. The cross-border customer base is adjacent to the service area, not a niche beside it.

You do not need bilingual staff to start. The workbook includes three scripts in English and Spanish covering arrival, the diagnostic handoff and the price conversation. They use the formal usted rather than tú, which is the register a homeowner expects at the door.

Start with one touchpoint.

Pick the one you are missing entirely and run it for two weeks before adding the next. If a meaningful share of your customers speak Spanish, save the scripts to your phone first.

Figures on membership-plan retention circulating in this industry come from vendors selling membership software rather than independent surveys, so they are not used here. Matching your own records shows what is sitting in the backlog. It does not prove a follow-up call alone would have closed any specific job.