Clinic guides
What missed calls and unanswered DMs cost an aesthetic clinic
Every clinic owner knows the phone rings while their hands are busy. Few have put a number on it. Here's how to work out yours in about ten minutes.
The short answer
Multiply the calls you miss each week by 4.33 (weeks in a month), by the share of those callers who would have booked, and by your average treatment value. Then add the no-shows you could have prevented, times the same treatment value.
With 8 missed calls a week, a £250 treatment and an assumption that one missed caller in four would have booked, missed calls alone come to about £2,165 a month. Add 4 no-shows a month, half of them preventable, and it's about £2,665. That's an illustration, not a benchmark — the method is the useful part.
Why a missed call costs a clinic more than most businesses
In a practitioner-led clinic, the person who answers the phone is usually the person holding the needle, the laser or the client's hand. Calls come in while you're treating, messages land while you're mid-consultation, and the evening is when people finally have time to enquire.
Three things make each miss expensive:
- Enquiries are high-intent. Someone ringing about lip filler or a skin booster has usually already decided they want it. They're choosing where, not whether.
- The next clinic is one tap away. If nobody answers, the same search or Instagram scroll that found you shows them someone else.
- Treatment values are high. One lost booking in aesthetics is often worth more than a day of small sales in other businesses — and a client who becomes a regular is worth many bookings.
The three leaks to count
Most of the money slips out through three gaps. Count each one separately, because each has a different fix.
- Missed calls. Calls that rang out while you were treating, or came in after you closed.
- Unanswered or slow DMs. WhatsApp, Instagram, text and email enquiries that waited hours — or never got a reply.
- No-shows and late cancellations. Slots that ended up empty and unpaid.
There's a fourth cost that isn't revenue: the hours you spend replying, booking, chasing deposits and sending forms after you close. That's your evening, not your till, but it's real.
The formula
| Leak | Monthly cost |
|---|---|
| Missed calls | missed calls a week × 4.33 × share who would have booked × average treatment value |
| Slow or unanswered DMs | DMs a week that waited too long × 4.33 × share who would have booked × average treatment value |
| No-shows | no-shows a month × share a deposit and reminders would prevent × average treatment value |
| Your time | enquiries a week × minutes each + admin hours after closing |
The one number you have to estimate is the share who would have booked. Be conservative. If you have no data, start at one in four and test it against your own records (see below).
A worked example
These are the starting numbers in the myAthenaAI estimate, not measurements from any clinic. Swap in your own.
| Input | Example |
|---|---|
| Calls missed a week while treating | 8 |
| Share of missed callers who would have booked | 25% |
| Average treatment value | £250 |
| No-shows and late cancels a month | 4 |
| Share a deposit and reminders would prevent | 50% |
- Missed calls: 8 × 4.33 × 25% × £250 = £2,165 a month
- No-shows: 4 × 50% × £250 = £500 a month
- Total: about £2,665 a month — before counting a single unanswered DM
The same arithmetic works in dollars. For a US clinic, use your own average treatment value and the result comes out in dollars.
On time: at 40 enquiries a week and 6 minutes each, replying takes 4 hours a week. Add 5 hours of admin after closing and that's 9 hours a week of desk work on top of treating.
How to find your real numbers
- Missed calls: your phone or business line's call log shows missed and unreturned calls. Count a normal week, not a quiet one.
- Slow DMs: scroll back through a week of WhatsApp and Instagram and count the enquiries that waited more than a few hours for a first reply, or got none.
- No-shows: your booking system's no-show and late-cancellation report, or your diary for the last month.
- Treatment value: last month's takings divided by the number of appointments.
- The "would have booked" share: of the people you did call back or reply to late last month, how many booked? That's a floor — the ones you never reached weren't more likely to book.
What fixes each leak
| Leak | What fixes it |
|---|---|
| Missed calls | Someone — or something — that answers while you're treating and can book the caller in, not just take a message. |
| Slow DMs | Replies in minutes on every channel, including evenings and weekends, with real availability so the conversation ends in a booking. |
| No-shows | A deposit taken at the point of booking, a reminder the day before, and a follow-up the moment someone goes quiet. |
| Your time | Forms, reminders, deposit chasing and aftercare messages that send themselves. |
You can cover these with people, with a stack of separate tools, or with one system that does all of it. That's the job myAthenaAI was built for: Athena answers WhatsApp, Instagram, SMS, email and the phone, books into your real diary, takes deposits at booking, sends reminders and forms, and follows up clients who went quiet.
Common mistakes when estimating
- Assuming every missed caller would have booked. They wouldn't. Use a share, and keep it honest.
- Counting a quiet week. Use a typical week, or average over a month.
- Forgetting repeat value. The formula counts one booking. A client who comes back every few months is worth more, so the real cost of a lost first booking is usually higher than the number you get.
- Ignoring your time. Nine hours a week of admin is more than a working day. Even if it doesn't show up in the till, it shows up in your evenings.