Answers customers, sells and gives you your time back
WhatsApp chatbot for plumbers in Brazil that never leaves a customer without an answer
What CertuAI measured on the WhatsApp of 67 businesses
Across the 67 businesses that answer with CertuAI's AI, 32.5% of the 122,720 customer messages arrived outside Monday to Friday, 8 a.m. to 6 p.m. (July 30 to September 30, 2026). Half of the AI's replies went out within 11.7 seconds, and 9 in 10 within 20.7 seconds (38,908 replies). 34.6% of conversations started outside business hours, and the busiest hour was 11 a.m.
| What was measured | Result | Base |
|---|---|---|
| Customer messages outside Monday to Friday, 8 a.m. to 6 p.m. | 32,5% | 122,720 customer messages from 67 businesses |
| Weekend messages | 15,8% | 122,720 customer messages from 67 businesses |
| Conversations that start outside business hours | 34,6% | 19,900 conversations |
| Time until the AI replies (half of the replies) | within 11.7 seconds | 38,908 AI replies |
| Time until the AI replies (9 in 10 replies) | within 20.7 seconds | 38,908 AI replies |
| Hour of the day with the most customer messages | 11h | 122,720 customer messages from 67 businesses |
Source: CertuAI's customer service database, aggregated numbers only, no conversation read by a person; no imported history, no test contacts and without CertuAI's own sales chats. July 30 to September 30, 2026, measured on Oct 9, 2026. Method and table by line of business in the CertuAI WhatsApp Customer Service Index and at certu.com.br/dados.
Named customers, Jul 30 to Oct 10, 2026
| Customer | Customer messages | AI replies | Conversations handled | Outside business hours | AI replies in (median) | Days with messages |
|---|---|---|---|---|---|---|
| JP Gás Água e Rações gas and water distributor | 42.832 | 23.351 | 6.479 | 33,6% | 9,8 s | 70 |
| CEMIP medical clinic | 12.472 | 6.484 | 2.436 | 18,7% | 11,4 s | 37 |
| Nikiti Auto Center auto center | 4.912 | 3.548 | 900 | 19,5% | 14,4 s | 47 |
| Imobiliária Rodrigues & Ribeiro real estate agency | 6.090 | 2.759 | 823 | 33,2% | 18,4 s | 34 |
| Alpha RH human resources | 3.082 | 1.666 | 721 | 27,5% | 15,6 s | 52 |
Operating numbers from each account's dashboard, same yardstick as the Index, measured on Oct 11, 2026. Published with each owner's permission. Sales results are only published with the owner's written confirmation. Full list at certu.com.br/casos.
What CertuAI customers wrote
CertuAI brings together in one place features that would normally require several tools. Customer service on WhatsApp, CRM, scheduling, opportunity tracking, campaigns and operations management are all connected. Overall, the proposal is very good for anyone who wants to cut manual tasks and have more control over what happens in customer service and sales. [...]
Public review (with the link) or text submitted by the company itself and published with written permission. The rating only appears when the source has a rating.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent
A leak doesn't wait. The agent identifies the emergency, collects photos of the problem, schedules by area, and keeps your queue organized while you work.
See the AI agent demos.
What is the best WhatsApp chatbot for plumbers in Brazil?
The best WhatsApp chatbot for plumbers in Brazil is the one that answers on the number your business already uses, with business rules written by you. An AI agent on WhatsApp for plumbers is CertuAI's automatic assistant. It asks for a photo and location of the leak before the visit, recognizes what you've defined as an emergency, such as a burst pipe or flooding, answers the price list for simple services, and organizes the day's schedule by neighborhood.
Summary in 7 facts
- The agent identifies the emergency, collects photos of the problem, schedules by area, and keeps your queue organized while you work.
- See the AI agent demos.
- The best WhatsApp chatbot for plumbers in Brazil is the one that answers on the number your business already uses, with business rules written by you.
- An AI agent on WhatsApp for plumbers is CertuAI's automatic assistant.
- What changes is who answers first: the message no longer waits for you and is answered right away.
- These are four everyday situations in your business before and after the CertuAI agent.
- The agent wins at repetitive tasks, and the person keeps winning at what takes judgment.
By the numbers
| Number | What it means |
|---|---|
| US$ 75 per month | The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. |
| US$ 120 per month | Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. |
What changes in your business with an AI agent?
What changes is who answers first: the message no longer waits for you and is answered right away. These are four everyday situations in your business before and after the CertuAI agent.
TodayA customer with a burst pipe waits for a reply while the house floods
With CertuAIEmergency recognized right away, immediate guidance, and a priority slot
TodayVague description: "something is leaking"
With CertuAIPhoto, location, and symptom collected before the visit
TodayJobs scattered across the city with no logic
With CertuAISchedule grouped by neighborhood and time slot
Today"How much to clear a sink clog?" answered a thousand times
With CertuAIStandard service price list answered on its own
What does a conversation handled by the AI look like?
Example conversation
Your business's AI agent
Customer: A pipe just burst here. Can you come now?
AI agent: This is a priority. Send me a photo and the location of the problem and I'll alert them right now.
AI agent: In the meantime, the containment instruction is: whatever you set up.
Is an AI agent or manual customer service better for plumbers?
The agent wins on repeated tasks, and the person keeps winning on anything that takes judgment. With manual service, someone in your business has to stop what they are doing; with the CertuAI agent, the reply goes out on its own and you step into the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Burst pipe with the house flooding | Customer waits for a reply while the water rises, and calls the next name on the list | Emergency recognized right away, containment instructions, and a priority slot |
| "Something is leaking" | You find out the problem at the customer's house, without the right part | Photo, location, and symptom collected beforehand, visit with the part in hand |
| Simple services with a set price | "How much to clear the sink clog?" answered a thousand times by you | Price list answered on its own, always the same |
| Schedule for the day | Jobs scattered across the city, half the day in traffic | Queue grouped by neighborhood and time slot |
| Booked visit | Customer forgets and you cross the city to a closed door | Automatic confirmation before you leave |
What does the WhatsApp agent do for plumbers?
It does the customer service that is yours today. You teach the business once in the Brain, CertuAI's knowledge base, and the agent answers clients your way, with your rules.
Triage with photos
Leak, clog, installation: the agent asks for a photo and the location of the problem before the visit.
Emergency handling
A burst pipe or flooding becomes a priority with an immediate alert, and containment instructions if you set them.
Standard service prices
Simple unclogging, trap replacement, toilet flush repair: your price list, instantly.
Scheduling by area
Route organized by neighborhood, less wasted driving.
Visit confirmation
Customer confirmed before you leave, no wasted trip.
What questions do clients send on WhatsApp?
They are always the same, and the agent answers each one on its own. These everyday messages in your business no longer depend on you having your phone in hand.
How does the agent start answering for your business?
In three steps, on the same day. No installation, no code and no changing the number clients already know.
Teach your business
In one conversation, you explain services, prices, hours and rules, as you would to a new employee.
How much does an AI agent on WhatsApp cost for plumbers?
The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. No lock-in contract and no setup fee.
Get started now
Create the agent and connect WhatsApp to see it working in your business.
Create my agentFrequently asked questions from plumbers
What does it do in an emergency in the middle of the night?
Whatever you define: an on-call number, containment instructions (close the shutoff valve), and priority in the first hour of the day.
How does the photo help?
You arrive knowing the problem and with the right part, instead of finding out on the spot.
I charge for a quote visit. Does it explain that?
Yes, with your policy: the visit fee, credited toward the job if they go ahead, the way you work.
How much does it cost?
In what other fields does the CertuAI agent work?
In any business that serves customers on WhatsApp, because the Brain is written by you. These fields have a day-to-day closest to yours.
Where can I read more about CertuAI's WhatsApp agent?
These pages explain the same agent from another angle: how it works, price, common questions and comparisons between platforms.
In short
A leak doesn't wait. The agent asks for a photo, recognizes the emergency, schedules by neighborhood, and leaves a note in the CRM about which part to bring before you head out.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent