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WhatsApp chatbot for building maintenance: what it does and how much it costs
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
The caretaker sends a photo of the leak at eleven at night and the building manager asks for a painting quote on the same number. The agent separates one from the other, collects what the technician needs to know and records the service call.
See the AI agent demos.
What is the best WhatsApp chatbot for building maintenance in Brazil?
The best WhatsApp chatbot for building maintenance in Brazil is the one that answers on the number the company already uses, with business rules written by you. An AI agent on WhatsApp for a building maintenance company is an automatic assistant that receives service calls from condominiums and commercial buildings, identifies the location and the problem, separates emergencies from quote requests, states what the monthly contract covers and schedules the technical visit with a complete record.
Summary in 7 facts
- The caretaker sends a photo of the leak at eleven at night and the building manager asks for a painting quote on the same number.
- The agent separates one from the other, collects what the technician needs to know and records the service call.
- See the AI agent demos.
- The best WhatsApp chatbot for building maintenance in Brazil is the one that answers on the number the company already uses, with business rules written by you.
- What changes is who answers first: the message no longer waits for you and is answered right away.
- These are four everyday company situations 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 at the company with an AI agent?
What changes is who answers first: the message no longer waits for you and gets answered right away. These are four everyday company situations before and after the CertuAI agent.
TodayA photo of a leak arrives at eleven at night and nobody answers until morning
With CertuAIThe agent answers right away and applies the on-call procedure you wrote
TodayThe technician leaves without knowing which building and which apartment
With CertuAIThe service call goes out with condominium, building, floor, on-site contact and photo
TodayThe building manager thinks the pump replacement is covered by the monthly contract
With CertuAIThe agent states the contract scope before the technician goes up
TodayA painting quote request gets lost among the service calls
With CertuAIIt is separated out and recorded as an opportunity in the CRM, with a task for your team
What does a conversation handled by the AI look like?
Example conversation
Company AI agent
Customer: Do you offer monthly contracts or only one-off service calls?
AI agent: Both. The monthly contract includes what you entered, and anything outside it is billed separately.
Customer: How much does the technical visit to assess cost?
AI agent: The technical visit costs your price. Send me the condominium, the building and the on-site contact and I will record the time window.
Is an AI agent or manual customer service worth more for building maintenance?
The agent wins at repetitive tasks, and people keep winning at what takes judgment. With manual service, someone at the company has to stop what they're doing; with the CertuAI agent the answer goes out on its own and you join the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Service call that arrives in the middle of the night | Sits as read until someone wakes up and reads it | Answered right away, with the on-call procedure you defined |
| Identifying where the call came from | The technician arrives at the building and finds out the block on site | The agent collects condominium, building, floor, contact and photo beforehand |
| Service inside or outside the contract | Argued about afterward, with the work already done | The agent states right away what the contract covers, the way you wrote it |
| New quote request | Lands in the same queue as the urgent service call | Separated from the service call and recorded as an opportunity in the CRM |
| History of what has already been done in the building | Scattered across old conversations and notebooks | Each service call becomes a record on the condominium's contact |
What does the WhatsApp agent do for building maintenance?
It handles the customer service that is yours today. You teach the business once in the Brain, CertuAI's knowledge base, and the agent answers building managers in your way, with your rules.
Service call triage
Separates emergencies from scheduled maintenance and from quote requests, according to the criteria you define.
Collecting site details
Condominium, building, floor, common area or unit, on-site contact and a photo of the problem.
Scope of the monthly contract
What is included in the contracted hours and what is billed separately, written by you.
Technical visit booking
Time window recorded in the conversation, with confirmation before the day.
Record per condominium
Each building becomes a contact in the CRM, with its service call history alongside.
What questions do building managers send on WhatsApp?
They're always the same questions, and the agent answers each one on its own. These everyday company messages no longer depend on you having your phone in hand.
How does the agent start answering customers at the company?
In three steps, on the same day. No installation, no code and no changing the number your building managers already know.
Teach your business
In one conversation, you explain services, prices, hours and rules, as you would to a new employee.
Connect WhatsApp
Scan a QR code with the number your building managers already know. Ready in minutes.
The agent answers
Answers right away, schedules, does follow-up, and records each contact in the built-in CRM. You take over any conversation whenever you want.
How much does an AI agent on WhatsApp cost for building maintenance?
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, connect WhatsApp and see it working at your company.
Create my agentWhat needs to be ready before turning the agent on at the company?
The agent answers what is written, and nothing beyond that. Have these points defined before you connect WhatsApp.
- The list of services the company covers and the ones you outsource or do not do
- What the monthly contract includes, in hours or in scope, and what is billed separately
- The definition of an emergency and the on-call procedure, with hours
- The required details for every service call: condominium, building, floor, on-site contact and photo
- The list of buildings that are already contract customers
- Technical visit price and areas served
Who can open a service call for you: only the building manager, or also the caretaker, the front desk and residents.
The most common mistake: Letting the agent confirm that a service is covered by the contract without checking which building the call came from. Each contract has its own scope, and a generic answer leads to a disputed bill later.
Building maintenance FAQ
Does the agent solve the problem over WhatsApp?
No. CertuAI does not do fieldwork. The agent answers, understands what happened, collects what the technician needs to know and schedules. Your team is the one who goes up into the building.
How does it handle a real emergency?
The way you write it. You define what counts as an emergency and what the procedure is, and the agent follows that rule instead of treating everything the same.
Does it work when the call comes from the condominium group chat?
The agent answers on the company number. When the caretaker or the building manager contacts that number, the conversation is recorded on the building's contact.
Can it know which condominiums are under contract?
Yes. You enter the buildings you serve in the Brain and the agent answers differently for a contract customer and for someone asking for a quote.
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
Separates urgent calls from new quotes, collects building and floor, and schedules the visit. Every conversation becomes a contact and a task in the CRM, with nobody typing.
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