How Much Are Unworked Leads Costing You?

Unworked leads cost you enquiries × the share never followed up × your close rate × your average job value, every month. For a home improvement firm with 500 enquiries a month, 30% slippage, a 25% close rate and a £3,500 average job, that is about £129,500 a month in jobs that should have closed.

Most owners have never worked it out, because the money never appears on a P&L. It leaves quietly, one ignored enquiry at a time.

So let's work it out. In front of you, with your numbers, right now.

The cost of not following up: the formula

Three inputs plus your lead count. That's all you need.

Enquiries per month × percentage never followed up past the first week × your normal close rate × average job value = monthly bleed.

The first number you know. The second one stings. Contractors lose 30 to 50 percent of their leads simply through poor follow-up, and most never realise it because each individual lead feels disposable. One missed call. One enquiry that came in at 9pm. One prospect who said "let me think about it" and never heard from you again.

The third and fourth numbers are yours. A window company might average £3,500 a job and close 25 percent of the leads it actually speaks to. A dealership might make £1,800 gross per unit and convert at 10 percent.

Now run it.

Worked example: home improvement at 500 leads a month

A home improvement company generating 500 enquiries a month, with 30 percent slipping through follow-up (the optimistic end of the range):

• 500 leads × 30% unworked = 150 leads nobody properly chased
• 150 × 25% close rate = 37 jobs that would have closed (37.5, rounded down)
• 37 × £3,500 average job = £129,500 in lost revenue. Every month.

Even if you halve both the slippage rate and the close rate to be brutal about it, 75 unworked leads at 12.5% is still about 9 jobs, or £31,500 a month. From leads you already paid to generate.

And here's the part that makes it worse. 63 percent of people who enquire won't buy for three months or more. They weren't dead when your team stopped calling. They were early. Someone else got them when they were ready.

Worked example: automotive at 2,000 leads a month

A dealership group pulling 2,000 leads a month faces a different failure mode: volume. Sales teams cherry-pick the hot ones and the rest rot in the CRM. 56 to 60 percent of dealership leads arrive after hours, when nobody is there to respond, so the slippage rate runs high.

• 2,000 leads × 40% unworked = 800 leads that go quiet
• 800 × 10% conversion = 80 deals
• 80 × £1,800 gross per unit = £144,000 in lost gross. Every month.

That's before finance commission, aftersales, and the lifetime value of a customer who services with you for five years. Dealers can see how we recover this on our car dealerships page.

The bleed compounds while you decide

Here's the trap with this problem. It never forces a decision. There's no invoice for lost leads. No supplier chasing payment. So fixing it slides to next quarter, then the quarter after.

But run the home improvement example forward. Deferring for one quarter costs £388,500 in lost jobs. Deferring for a year while you "look at options" costs over £1.5 million. Meanwhile the database keeps growing, because you're still generating leads and still only working a fraction of them. The pile of unworked names gets bigger and colder every month you wait.

Compare that to the cost of doing something about it. With Setterly, you pay nothing until a booked, qualified appointment lands in your diary.

What recovering lost revenue from leads actually looks like

This is exactly what database reactivation exists to fix. Instead of writing off the 30 to 50 percent, you go back into the CRM and restart the conversation with every lead that went quiet, using AI-powered SMS conversations that reference the person's original enquiry, qualify them politely, and book the interested ones straight into your calendar. The method is in our database reactivation guide.

SMS is the channel because it gets read. Open rates sit around 98 percent, and a text that opens with real context ("Hi it's Alex. Is this the same Mark who was interested in double glazing repair earlier this month?") gets replies that a cold call or a fifth marketing email never will.

The proof this works at scale: Cloudy2Clear, a UK misted double glazing repair franchise, handed us 6,769 old enquiries their own team had written off. 64 percent replied, the campaign booked 673 appointments, and it generated £639,350 in pipeline, with £107,000+ closed. Every pound of that was sitting in a spreadsheet marked "no answer" before the campaign started. The detail is in our Cloudy2Clear case study.

Across all our clients we've now booked over 3,000 appointments from more than 260,000 AI SMS conversations. The pattern holds everywhere: the leads were never dead. They were just never followed up.

How to stop the bleed this month

Three steps, and the first two cost nothing but an hour.

1. Count your unworked leads. Export everything from the last 12 months with no closed outcome and no contact in 30+ days. Most businesses find thousands.
2. Run the formula above with your real numbers. Write the monthly figure down. Put it somewhere you'll see it. Our ROI calculator can help.
3. Reactivate before you buy another lead. The old ones are already paid for. Here's how the process works end to end.

If you're tempted to fix this by buying more leads instead, read why Facebook leads are not converting first.

Stop paying for leads twice

You paid to generate every lead in your CRM. Letting them sit unworked means paying again, in lost revenue, every single month. The formula above tells you exactly how much.