How The Grout Medic booked 750+ estimates without adding office staff
An AI scheduling assistant answered 1,500+ calls and booked free estimates live, straight into ServiceMinder.
Book a free 15-minute callBy Naveen Aggarwal, Explained Consulting · Last updated: October 2026
At a glance
Data through October 2026
About 1 in 5 calls needed a person. The other four never reached staff.
Hear Sarah reschedule an appointment
A 56-second demo call. No real customer on the line.
Read the transcript
- 0:00
- Sarah
- Hi, this is Sarah with The Grout Medic. Are you looking to schedule a free estimate?
- 0:04
- Caller
- Uh, reschedule.
- 0:06
- Sarah
- Oh, got it! Let's look up your account. Can I get your phone number to find your appointment?
- 0:10
- Caller
- It's six three zero, four two five, [beep].
- 0:15
- Sarah
- Okay, so that's area code 6-3-0, 4-2-5, [beep]. Is that correct?
- 0:20
- Caller
- Yes.
- 0:21
- Sarah
- I found your appointment. It's scheduled for February 10th at 12:30 PM. What date and time would you like to reschedule to?
- 0:28
- Caller
- February second, if possible.
- 0:31
- Sarah
- We have availability on Monday, February 2nd, between 8 AM and 1 PM. Which time works best for you?
- 0:37
- Caller
- One PM, please.
- 0:39
- Sarah
- The 1 PM slot on February 2nd is available. So that's Monday, February 2nd at 1:00 PM. Does that work for you?
- 0:45
- Caller
- Yes, it does.
- 0:47
- Sarah
- Your appointment is rescheduled for February 2nd from 1:00 to 2:00 PM. You will receive a call or text when we are on the way, and an email confirmation as well. Is there anything else I can help you with today?
The business
The Grout Medic of West/Southwest Chicagoland restores tile and grout for homeowners across Naperville and the western suburbs. Every job starts with a free in-home estimate. Every estimate starts with a phone call.
The problem: an answering service that couldn't book
The phones never stopped. The business got 10 to 15 inbound calls a day, and 6 to 8 of them were estimate requests. An answering service and chat vendor cost about $2,000 a month. They still couldn't book anything. They took messages, and staff called people back. By then, some homeowners had already booked with a competitor.
Reschedules, cancellations, callers outside the service area and service questions ate up the rest of the day.
What we built: Sarah, an AI scheduling assistant
Explained Consulting deployed Switchboard, an AI scheduling assistant named Sarah. Sarah answers the phone and finishes the job:
- Books free estimates live, using real availability from ServiceMinder
- Creates the customer record and the appointment, with no retyping
- Reschedules and cancels existing appointments
- Answers common service questions
- Screens callers from outside the service area and routes them correctly
- Hands off to the office only when a caller truly needs a person
Under the hood, Sarah runs on Retell AI, n8n workflows and a direct ServiceMinder API integration. Every call is logged, scored and reviewed. Weak spots get fixed one release at a time.
The results: real calls, real bookings
Live call data through October 2026, with test calls excluded.
| Metric | Result |
|---|---|
| Inbound calls answered | 1,565 |
| Estimates booked (phone and web chat) | 755 |
| Inbound calls ending in a booking | 44% |
| Calls handed to staff | About 1 in 5 |
| Night and weekend bookings | 88 |
| Typical booking call | About 4 minutes |
| Callers from outside the service area screened | 183 |
| Caller sentiment on booking calls | 4.8 out of 5 |
What that means for the owner
Estimates land on the calendar during the call.
No message. No callback. No lag.
The night shift is covered.
88 estimates were booked after 5 p.m. or on weekends. Those calls used to go to voicemail.
The office handles only the hard calls.
Four out of five calls never reach staff.
Callers like it.
Booking calls average 4.8 out of 5 on sentiment scoring.
How many estimates is voicemail costing you?
In 15 minutes we'll map your call flow and estimate it for last month.
Why most AI receptionists fail
Most AI receptionists answer the phone. Sarah finishes the job.
Read: 7 reasons AI receptionists fail, and what to ask before you buy →
Why it worked
Built around the CRM.
Integration is the hard part. ServiceMinder's API has gaps the documentation doesn't mention. We found them in testing and built around them.
Measured the right thing.
The question was never "did it answer?" It was "did it finish the job without a human?" That number drives every release.
Treated as a living system.
Sarah has shipped more than 150 versions. Each one fixed something real callers ran into.
Is your phone costing you jobs?
Explained Consulting builds AI scheduling assistants for home service businesses and franchise operators. Already on ServiceMinder? The integration is proven and ready to adapt to your business.
Book a free 15-minute call. We'll map your call flow and estimate how many jobs voicemail cost you last month.
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