Answers customers, sells and gives you your time back
WhatsApp chatbot for interior designers in Brazil that leaves no customer unanswered
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
People who want an interior design project ask for the price before giving the square footage. The agent asks about the rooms, square footage, construction stage and investment range, schedules the visit and stores the photos with the contact.
Before that, see the AI agent demos and the CRM with service provider examples.
What is the best WhatsApp chatbot for interior designers in Brazil?
The best WhatsApp chatbot for interior designers in Brazil is the one that answers on the number the studio already uses, with the business rules written by you. An AI agent on WhatsApp for an interior designer is CertuAI's automated assistant. It receives the prospect, asks which rooms, the square footage, whether construction has started, the deadline and the investment range, explains how the site visit and the executive design work, schedules the time and stores the floor plan and photos with the contact.
Summary in 7 facts
- People who want an interior design project ask for the price before giving the square footage.
- The agent asks about the rooms, square footage, construction stage and investment range, schedules the visit and stores the photos with the contact.
- Before that, see the AI agent demos and the CRM with service provider examples.
- The best WhatsApp chatbot for interior designers in Brazil is the one that answers on the number the studio already uses, with the 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 situations at the firm 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 firm 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 at the firm before and after the CertuAI agent.
TodayA prospect asks how much a project costs and the conversation dies on a generic reply
With CertuAIThe agent asks about rooms, square footage and deadline and gives back a range that makes sense
TodayA visit booked at a property still at the bare-structure stage, with nothing to decide
With CertuAIThe agent checks the construction stage before offering a time slot
TodayA customer finds out at booking that the site visit is charged and backs out
With CertuAIThe visit rule is written out first, and whoever books already knows what they'll pay
TodayPhotos of the apartment scattered across old conversations
With CertuAIFiles stored with the contact, along with the project history
What does a conversation handled by the AI look like?
Example conversation
The firm's AI agent
Customer: How much does an interior design project cost for a seventy-square-meter apartment?
AI agent: Which rooms are included? And is the property pre-construction, under construction or move-in ready?
Customer: Is the site visit charged? Does the fee go toward the project?
AI agent: The site visit rule: what you set up.
Is an AI agent or manual customer service better for interior designers?
The agent wins on repeated tasks, and the person keeps winning on anything that takes judgment. With manual service, someone at the firm 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 |
|---|---|---|
| Price question at first contact | Answered in the dark, without knowing the square footage or how many rooms | The agent asks about rooms and square footage before talking about price |
| Construction stage | Found out at the visit, when the property is still at the subfloor stage | Asked beforehand, because it changes the scope and the order of the work |
| Charged site visit | The customer finds out about the charge at booking and backs out | The rule is written out in the conversation, before the time slot is offered |
| Property photos and floor plan | Arrive scattered across old conversations | Received in the conversation and stored with the contact |
| Customer with a budget outside what the studio takes on | Found out after the visit has already happened | Investment range asked before taking up calendar time |
What does the WhatsApp agent do for interior designers?
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.
Rooms and square footage
Which rooms are included and how many square meters each one has, asked before any price.
Construction stage
Whether the property is pre-construction, at the bare-structure stage or move-in ready, because that changes the entire scope.
Site visit rule
Whether it's charged, how much it costs and whether the fee goes toward the project, written down before the time slot goes out.
Receiving photos and floor plans
The material arrives in the conversation and is stored with the contact in the CRM.
Executive design scope
What's included in the executive design and what counts as construction follow-up, the way you work.
What questions do clients send on WhatsApp?
They are always the same, and the agent answers each one on its own. These everyday firm messages no longer depend on you having your phone in hand.
How does the agent start answering at the firm?
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.
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 interior designers?
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 at the firm.
Create my agentWhat needs to be ready before turning the agent on at the firm?
The agent answers what is written, and nothing beyond that. Have these points defined before you connect WhatsApp.
- How the studio charges: per room, per square meter or per closed project
- Whether the site visit is charged, how much it costs and whether the fee goes toward the project
- What's included in the executive design and what counts as construction follow-up
- The investment range above which it's worth booking the visit
- The region the studio serves, and how remote projects work
- Whether the studio has a partner carpentry shop and how that's presented to the customer
Whether the agent gives a price range per room in the conversation or only collects the data and the number comes from you.
The most common mistake: Turning on the agent without a written follow-up cadence. An interior design project takes weeks to be decided, and a proposal sent with no scheduled follow-up is the most common way to lose a customer who still wanted to buy. Read how to fix this.
Frequently asked questions from interior designers
Does the agent do the design?
No. It handles customer service: it qualifies, schedules the visit and organizes the photos and floor plan. The design is still yours.
Does it quote a price without me seeing the property?
It gives the range you define, always after learning the rooms and square footage. The final price comes after the visit, if that's how you work.
Why does it ask about the construction stage?
Because a pre-construction property, a bare-structure one and a move-in ready one call for different jobs. Asking first avoids a site visit somewhere where there's nothing to decide yet.
Can it receive photos and floor plans?
Yes. The file arrives in the conversation and is stored with the contact in the CRM, with the rooms already noted.
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.
- Demo CRM with service provider examples, to try without signing up
- How the AI WhatsApp chatbot works
- CertuAI plans and prices
- How much it costs to put AI in your business
- WhatsApp AI guides, step by step
- AI blog for small businesses
- Compare WhatsApp chatbot platforms
- All fields served by the CertuAI agent
In short
Finds out which rooms, square footage and construction stage before the site visit, and stores the floor plan and photos with the contact in the studio's CRM.
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