
November 4, 2026
Missed calls: how to work out for yourself what they cost
Missed calls: why you should work this out yourself
Missed calls are not a minor annoyance. They are a concrete financial loss — at least potentially. The problem: most businesses do not know how big that loss actually is.
And you do not need an external study or an industry figure for it. You just need your own numbers and five minutes.
What you need for the calculation
You need five figures. All of them come from your own business — none of them is an assumption from outside.
- How many calls go unanswered at your business each day?
- How many working days does your business have per year?
- How many of those calls would have been genuine enquiries — and how many of those would have turned into a job?
- What is your average job value?
- What is your margin on that job?
Important: point 3 is an assumption. There is no measured industry figure for it. You estimate it yourself — based on your experience.
The calculation step by step
Start with the annual base. If you miss two calls on a typical day and your business works 220 days a year, that is 440 missed calls a year.
Now comes your first assumption: how many of them would have been enquiries? Let us say you estimate a third — that would be around 147 enquiries. How many of those would you have turned into jobs? If you assume half, that leaves about 73 jobs.
Multiply that number by your average job value and then by your margin. The result shows you what contribution margin you may have let slip through your fingers. Not a promise — but an honest ballpark figure.
Why your own assumptions beat industry figures
There is no reliable, measured rate for how many missed calls turn into real jobs at a solar company or a trade business. Anyone who gives you such a figure without naming the source and method is making it up.
Your own estimate is more honest. You know your business, your customers and your closing rate better than any external study.
If you are unsure, use two scenarios: a conservative one and a realistic one. The gap between them shows you the range of your risk.
Missed calls in the everyday life of a solar business
At a solar company or an installer of wallboxes and storage systems, everyday life often looks like this: the phone rings while someone is up on the roof or commissioning a system. Nobody picks up.
The caller might try again. Or might not. If they end up at the next business, the job is gone — without you ever knowing.
That is exactly why it is worth going through this calculation properly once. Not to make you feel bad, but to know where you stand.
What to do with the result
The result of your calculation is not proof, but a signal. If the potential loss is small, you can approach the topic calmly. If it is noticeable, it is worth thinking about solutions.
Possible approaches range from simple callback processes and better availability to technical solutions such as an AI phone assistant. Which approach suits your business depends on size, structure and budget.
If you want to know how to improve processes like these systematically, take a look at what AI consulting for your business can mean in practice.
Three mistakes in the calculation
Assumptions that are too optimistic: if you count every missed call as a lost job, you overestimate the loss. Stay realistic.
No two scenarios: a single figure pretends to an accuracy that is not there. Always calculate with a conservative and a realistic variant.
Calculating once and forgetting it: your numbers change. Job values rise, margins fluctuate, call volume grows with the business. Repeat the calculation once a year.
When you know your numbers, you can decide. Before that, you are groping in the dark.
The same principle applies to your sales and your marketing: first measure, then optimise.
If you want to know how much potential there is in your business — not just in missed calls, but overall — book a free strategy check. 30 minutes, no obligation, no sales pitch. You will get a clear view of concrete starting points for your business: Book your appointment now.