A UK Surveyor Firm Replaced Its Answering Service With a Vapi Voice Agent
Ekron Surveyors had an agency build a Vapi voice agent that answers enquiries, qualifies jobs and logs leads in the CRM. The agency reports yearly answering costs falling from £24K to £4K.
Who this is about: UK building surveyor firm (Ekron Surveyors), agency-built setup
What it takes
- Cost
- Free planVapi: Starts with $5 of free credits and one free number. Calls cost $0.05 a minute in Vapi hosting plus the model, voice, transcriber and phone fees. The Core package is $29 a month (5 numbers, 10 concurrent calls); Pro has a $999 monthly minimum.Price checked Oct 18, 2026 on vapi.ai. Prices change; check before you buy.
- Setup time
- A few daysOur estimate from the source, for one business.
- Skill needed
- Developer skillsYou build or run your own code, even if AI writes it.
Explain it simply
A small surveying firm stopped paying a human answering service. An agency set up an AI voice on Vapi that picks up the phone, asks what the caller needs, collects their details and saves them as a lead. The founder says it caught a £1,200 job while he was on holiday.
What was done
The firm hired an agency (Azizov HQ) to build an inbound phone agent on Vapi, with ElevenLabs voices and Twilio phone lines. The agent answers enquiries, qualifies the job and writes the lead into the CRM.
Calls the team can't take go to the agent. Staff call the qualified leads back.
Separate from the Ekron case study, Vapi's phone quickstart builds an assistant from a template such as Info Collector or Appointment Scheduler, attaches a free number, and says the test call takes under 5 minutes. Free numbers can take inbound calls. They cannot launch outbound campaigns.
Vapi's outbound campaigns quickstart says a day-before reminder campaign takes about 10 minutes: upload a CSV of number, name, appointment date and time, and the agent calls each client by name. It can confirm or flag a reschedule. It does not book or cancel.
How it went
The agency's case study quotes "Costs reduced from £24K to £4K per year" (an 83% reduction). The founder says the agent captured a £1,200 lead while he was on holiday, which the firm has since converted.
- The page counts about £10K of extra work captured in the first three months but says it is "not presented as booked revenue".
- This was built by an agency that sells these builds. The page has no date, and the figures are the agency's and the founder's own.
- The FCC ruled on Feb 8, 2024 that AI-generated voices count as "artificial" under the TCPA. Get prior consent before automated outbound calls. These two notes are from Vapi's docs, not from the Ekron figures.
Prompt
Context: You are setting up the inbound phone agent for a small professional-services firm. The agent answers when staff can't, qualifies the caller and captures a lead. It never quotes a fixed price or promises a date.
FIRST MESSAGE:
"Thanks for calling [BUSINESS_NAME], this is [AGENT_NAME], the virtual assistant. Are you calling about a new [SERVICE_CATEGORY] job, or an existing one?"
SYSTEM PROMPT:
You are [AGENT_NAME], the phone receptionist for [BUSINESS_NAME], a [BUSINESS_TYPE] serving [SERVICE_AREA]. Calls reach you [WHEN_AGENT_ANSWERS].
Goals, in order:
1. Find out if this is a NEW enquiry or an EXISTING job.
2. For new enquiries, collect: full name, best callback number, email, property or site address (including postcode), type of service needed (choose from [SERVICE_LIST]), how soon they need it, and how they heard about us.
3. Answer simple questions only from the FACTS below. If the answer is not in FACTS, say: "Good question. I'll have [OWNER_NAME] confirm that when they call you back."
4. Price questions: give only the ranges in FACTS, always say "a firm quote follows after we review the details", and never invent a number.
5. Existing jobs: take name, job reference if known, and the message. Do not discuss job status.
6. If the caller is upset, says it is urgent, or asks for a human, say you will flag it as urgent and end politely.
7. Before ending, read the details back for confirmation, then say: "[OWNER_NAME] or the team will call you back [CALLBACK_PROMISE]."
Style: warm, brief, one question at a time, spelling and phrasing per [LOCALE]. Never claim to be human if asked.
FACTS:
- Services: [SERVICE_LIST]
- Price ranges: [PRICE_RANGES]
- Service area: [SERVICE_AREA]
- Opening hours: [OPENING_HOURS]
- Things we do NOT do: [EXCLUSIONS]
At the end of the call, output a summary with these fields: caller_name, phone, email, address, service, urgency (low/normal/urgent), source, notes.
Our template, written from the source and the vendor docs; the source did not publish its own prompt. Replace the [brackets] before you use it.
Business fit
Who this helps, and how:
Tradespeople and surveyors: catch new-job calls while you are on site and get a written summary to call back.
Local & serviceSmall professional firms: replace an after-hours answering service with an agent that only takes details and never quotes a fixed price.
Agencies
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“Vendor or secondhand” (grade C) means: A tool maker's case study, a promotional demo, or someone else's write-up. How we grade. Spotted a mistake? Suggest a correction.
