What a Phone Answering Service Actually Costs in the UK

A missed call is the only marketing spend that bills you twice — once to make the phone ring, and again when someone else answers it. The good news is that fixing it costs less than most people fear. The bad news is that almost nobody publishes what it actually comes to.

So here are the numbers. We sell an AI receptionist, so treat the last section with the appropriate squint — but the arithmetic in the middle is the same whoever you buy from.

The short answer

For a UK small business taking a normal volume of calls, expect somewhere between £30 and £150 a month. The spread is almost entirely down to how many calls you get and whether a human picks up.

• •Pay as you go: £10–£20 a month to keep the line open, then £0.85–£2.99 per answered call.
• •Bundled plans: £50–£110 a month for an allowance of calls, then per-call charges once you go over.
• •Flat-rate AI: a fixed monthly fee with no per-call meter at all.

The two pricing models, and which one bites

Nearly every human answering service charges a base subscription plus usage. The base is small — often £15–£55 — and exists to reserve your number and your script. The usage charge is where the bill actually comes from, and it arrives in one of two flavours.

Per call

You pay a flat amount each time someone answers, typically £0.99–£2.50. Simple to predict, and forgiving if your calls run long. Less forgiving if you get lots of short ones — a thirty-second "are you open tomorrow?" costs the same as a real enquiry.

Per minute

You pay for talk time, usually £0.80–£1.85 a minute. Looks cheaper on the rate card, and often is — until you read how they round. Most providers round up to the next whole minute, so a 65-second call bills as two. On a hundred calls a month that rounding alone can add twenty or thirty pounds.

Ask one question before you sign anything: "do you round up per call, and to what?" The answer moves the real price more than the headline rate does.

What it actually costs at your call volume

This is the table the comparison sites leave out. Rough monthly bills at three volumes, using published UK rates as of August 2026 and assuming calls average about two minutes.

The shape matters more than any single figure. Human services scale with how busy you are, which means the better your marketing works, the more your answering bill grows. That is fine while calls turn into jobs, and irritating when half of them are people asking your opening hours.

The costs that aren't on the pricing page

• •Setup and scripting: £0–£100. Custom scripts and call flows are often billed as an "enhancement" on top.
• •Out-of-hours surcharge: £25–£75 a month with many providers. If you want evenings and weekends covered, check whether that's included or bolted on.
• •Call transfers: patching a caller through to you sometimes costs extra, and sometimes counts as a second call.
• •Minimum terms: monthly rolling is common but not universal. Twelve-month tie-ins still exist.
• •VAT: most published rates exclude it. Add 20% to everything above if you can't reclaim it.

Compared to hiring someone

The honest benchmark. A part-time receptionist on minimum wage for twenty hours a week costs roughly £13,000 a year once you include employer's National Insurance and pension. Full-time, you're north of £24,000 — and they still go home at five, take holidays and occasionally get the flu.

At £100 a month, an answering service costs £1,200 a year. That is not really a comparison so much as a different category of decision. The reason to employ someone is that you want a person who knows the business inside out; the reason to outsource is that you want the phone answered and would rather spend £1,200 than £13,000 finding out.

Human, AI, or both?

Three years ago this was an easy question and the answer was "human". It's genuinely less obvious now.

A human service is still better at the awkward call — the upset customer, the one who rambles, the caller who needs judgement rather than information. You're paying for someone who can read a situation.

An AI receptionist answers instantly, never queues, works at 2am and costs the same in December as it does in a quiet February. It's very good at the eighty percent of calls that are opening hours, prices, booking a slot and taking a message. It is worse than a person at the other twenty.

Missed-call text back is the cheap middle ground people forget. When you can't answer, the caller gets an automatic text within seconds. It doesn't answer anything, but it stops the caller ringing your competitor while they wait, and it costs a fraction of either option above.

Is it worth it?

Do this sum before you buy anything. Take what an average job is worth to you, then multiply by how many calls you reckon you miss in a month. Most trades and clinics we talk to miss between five and fifteen.

If a job is worth £300 and you're missing eight calls a month, even converting one of them covers a £100-a-month service three times over. If a job is worth £40 and you miss two, don't buy anything — put an honest voicemail on and get on with your day.

The failure mode nobody mentions: buying a service and never checking the messages it takes. A receptionist that fills an inbox you don't read is just a more expensive voicemail.

The short version

Budget £50–£110 a month if your call volume is normal and you want humans. Ask about rounding, out-of-hours charges and minimum terms before the rate card convinces you. And work out what a missed call is actually worth to you first — that number decides whether any of this is worth buying, and it's the one figure no provider can tell you.