How do I find out how many calls I am actually missing?

Your mobile carrier or business phone provider has a call log showing answered versus missed. Pull ninety days and count. If you use call forwarding or a virtual number, that dashboard usually reports it directly. Almost everyone who does this finds a higher number than they guessed, because missed calls are invisible by nature — nothing arrives to remind you.

Do people really not leave voicemails any more?

We are not going to quote you a percentage, because we do not have data we can stand behind and the numbers thrown around in this industry are usually invented. What we can say is what your own log will show you: compare missed calls against voicemails actually left. That comparison is specific to your business and it is free to run.

Is a missed call the same as a lost job?

No, and any calculation treating them as equivalent is inflated. Some callers ring back, some were wrong numbers, some were suppliers or spam. The realistic calculation applies a conversion rate to genuine opportunities only, which is what the worked example below does.

What if the number turns out to be small?

Then do nothing, and be glad you checked. If you are missing two calls a month, better voicemail and the discipline to return calls same-day is the correct answer. This calculation is as useful for talking yourself out of a purchase as into one.

What Missed Calls Actually Cost a Plumbing Business

Missed calls are the only marketing problem that leaves no evidence. A bounced email shows up in a report. An abandoned quote sits in your inbox. A call that rang out at 4:50pm on a Friday produces nothing at all — no notification, no record you will ever look at, no reminder. The job simply goes to somebody else and you never learn it existed.

So the first useful thing is not a fix. It is a number.

The calculation

Five inputs. All of them come from your own records or your own knowledge of the business.

Calls received per week — your call log
Percentage unanswered — your call log
Percentage of missed calls that are genuine opportunities — your judgement; excludes suppliers, spam, wrong numbers, and existing customers who will ring back
Conversion rate on opportunities you actually reach — your judgement, and be honest
Average job value — your accounts

Lost revenue/week = calls × missed% × opportunity% × conversion% × job value

Worked example

Everything below is an assumption in an illustration, not a claim about any real business and not a research finding. The point is the method; your numbers are the answer.

A three-van plumbing business:

Input	Assumed value
Calls per week	60
Missed	20% → 12 calls
Genuine opportunities	50% → 6 calls
Conversion on reached opportunities	40% → 2.4 jobs
Average job value	$420

Weekly: 2.4 × $420 = $1,008 Annually: ≈ $52,400

That is not a projection of growth. It is work that already chose your business, dialled your number, and did not reach anyone.

The same maths for a solo operator

Input	Assumed value
Calls per week	25
Missed	35% → 8.75 (a solo operator on the tools misses far more)
Genuine opportunities	50% → 4.4
Conversion	40% → 1.75 jobs
Average job value	$380

Weekly: ≈ $665 · Annually: ≈ $34,600

The solo number is often proportionally worse, because there is nobody to cover the phone while you are working. That is the whole reason it is worse.

Getting your real inputs

Calls and missed percentage. Pull ninety days from your carrier or phone provider and count answered versus missed. This is the input people guess at and get wrong, always in the optimistic direction, because there is nothing arriving to correct the guess.

The opportunity rate. Look at the numbers themselves. Repeat numbers are usually existing customers or suppliers. Genuinely unknown numbers calling once are usually new work. Half is a reasonable starting assumption, but half an hour with the actual list beats an assumption.

Conversion. Take the calls you did answer over a month and count how many became jobs. Do not use an aspirational number; use the real one.

Job value. Straight from your accounts. Use the average, not your best week.

The two things that make the raw number understate the problem

After-hours calls convert far better than daytime ones. Somebody ringing a plumber at 9pm on a Sunday has an actual problem right now and is not shopping on price. If a disproportionate share of your missed calls are outside business hours — and for most trades they are — then applying your average conversion rate to them is conservative. Those calls were worth more than average, and they were the ones most certain to go elsewhere, because a person with water coming through a ceiling calls the next name on the list within a minute.

The customer you lose, you lose repeatedly. A first call is often the start of a relationship — the annual service, the next emergency, the bathroom job in three years, the referral to a neighbour. Counting only the immediate job value understates it, but by an amount nobody can honestly quantify, so we do not try. Just be aware the first-job number is a floor and not a ceiling.

What actually reduces the number

The realistic options, and the honest case for each.

Return calls faster. Free. Genuinely effective if your miss rate is low and you have the discipline. It fails at exactly the moment it matters most — the emergency call at 9pm that found somebody else within ninety seconds.

Hire a receptionist. Best possible experience for the caller and the only option that handles genuine judgement calls. It is also a full salary plus overhead, and it covers roughly 40 of the 168 hours in a week. For most small trades businesses the volume does not justify it, and the hours it does not cover are the valuable ones.

A human answering service. Cheaper than an employee, covers extended hours, and a person answers. Usually priced per minute or per call, which means your bill rises with your marketing spend, and the person answering is handling several unrelated businesses and does not know your service area or your trade.

AI answering. Answers every call at every hour at a flat cost, applies your rules consistently, and captures details reliably. It cannot make judgement calls, cannot price complex work, and needs real configuration effort up front to be any good. It is straightforwardly the best fit for high-volume repetitive intake and after-hours cover, and a poor fit for a business whose calls are mostly long and complicated.

Better voicemail. Nearly free, and genuinely the right answer for low volume — a specific greeting that tells people exactly when you will ring back, plus the discipline to actually do it, beats a badly-configured anything.

Read your own number honestly

Run the calculation before you decide anything, because it points in both directions:

Under ~$500/month lost: do not buy software. Fix your voicemail greeting and return calls same-day.
$500–$2,000/month: worth solving. Compare the annual lost revenue against the annual cost of whichever option fits your call pattern.
Over ~$2,000/month: you have a structural problem, and it is almost certainly costing you more than any of the fixes above.

The single most useful thing on this page is not any of the figures in it. It is the suggestion to pull ninety days of call logs and count. Most people who do that find the problem is roughly twice what they assumed — and a few find it is nothing, which is worth knowing before spending a dollar.