Answers customers, sells and gives you your time back
WhatsApp chatbot for metal fabrication shops in Brazil, with your business's Brain
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 photo of a part arrives with no dimensions and asks for a price, and the estimator answers between one job and the next. The agent explains what the shop does, asks for the drawing, material and quantity, and hands over a request that is ready to quote.
See the AI agent demos and the CRM with sales examples for businesses.
What is the best WhatsApp chatbot for metal fabrication shops in Brazil?
The best WhatsApp chatbot for metal fabrication shops in Brazil is the one that answers on the number the shop already uses, with business rules written by you. An AI agent on WhatsApp for a metal fabrication shop is an automatic assistant that answers which processes the company performs, which materials and thicknesses it works with, what the minimum run and average lead time are, and gathers the drawing, material, quantity and finish before passing the order to the estimator.
Summary in 7 facts
- A photo of a part arrives with no dimensions and asks for a price, and the estimator answers between one job and the next.
- The agent explains what the shop does, asks for the drawing, material and quantity, and hands over a request that is ready to quote.
- See the AI agent demos and the CRM with sales examples for businesses.
- The best WhatsApp chatbot for metal fabrication shops in Brazil is the one that answers on the number the shop 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 situations in the shop 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 a metal fabrication shop 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 the shop before and after the CertuAI agent.
TodayCustomer sends a photo of the part and vanishes while waiting for the estimator's reply
With CertuAIThe agent answers right away and already asks for the drawing, material and quantity
TodayThe question about which processes the shop offers comes back every week
With CertuAIAnswered on its own, with the cutting, bending, welding and finishing you entered
TodayA request for a single part lands in the queue alongside a production-run customer
With CertuAIThe agent applies the minimum run rule you wrote, without embarrassing anyone
TodayQuote sent on Friday and nobody remembers to follow up
With CertuAIBecomes a contact in the CRM and gets automatic follow-up
What does a conversation handled by the AI look like?
Example conversation
Metal fabrication shop AI agent
Customer: Do you make parts to a drawing or only catalog products?
AI agent: Send me the drawing or a photo with dimensions, the material, the quantity and the finish.
Customer: Do you work with 304 stainless?
AI agent: The materials the shop works with: what you entered.
Is an AI agent or manual customer service worth more for metal fabrication shops?
The agent wins on repetitive tasks, and the person keeps winning on whatever takes judgment. With manual service, someone at the shop has to stop what they are doing; with the CertuAI agent the answer goes out on its own and you step into the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Price request with a photo of a part with no dimensions | The estimator asks everything again, one message at a time | The agent asks for the drawing, material, quantity and finish in a single conversation |
| Asks whether the company works with stainless steel or aluminum | Depends on someone leaving production to answer | Answered right away, with the list of materials you entered |
| Individual wanting a single part | Takes up the same channel as the production-run customer | Immediately receives the minimum run rule you set |
| Price of a part made to a drawing | Sometimes guessed over the phone so as not to lose the contact | The agent does not set the price of a part made to a drawing, it builds the request for the estimator |
| Quote sent and no reply | Gets forgotten in the conversation list | Becomes a contact in the CRM, with automatic follow-up |
What does the WhatsApp agent do for metal fabrication shops?
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.
Available processes
Cutting, bending, rolling, welding, drilling and finishing: what the shop does and what it does not do.
Materials and thicknesses
Carbon steel, stainless steel, galvanized steel, aluminum and the thicknesses you work with, answered at any hour.
Quote request intake
Drawing or photo with dimensions, material, quantity, finish and desired deadline, all in one conversation.
Minimum run and service to individuals
The rule you set, applied the same way to every new contact.
Follow-up on quotes sent
Each proposal becomes a contact and a task in the CRM, with an automatic follow-up if the customer does not come back.
What questions do clients send on WhatsApp?
They are always the same, and the agent answers each one on its own. These everyday messages at the shop no longer depend on you having your phone in hand.
How does the agent start answering customers at the shop?
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 metal fabrication shops?
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 shop.
Create my agentWhat needs to be ready before turning on the agent at the shop?
The agent answers what is written, and nothing beyond that. Have these points defined before you connect WhatsApp.
- The list of processes the shop performs and, above all, the ones it does not perform
- Materials and thickness ranges you work with
- Minimum run by type of service and whether you serve individuals
- What must come with a quote request: drawing or photo with dimensions, material, quantity, finish and deadline
- Average production lead time by type of service and how delivery works
Whether the agent gives a price range for standard-priced services, such as cutting by the meter, or whether every price comes from the estimator.
The most common mistake: Letting the agent state a lead time before it knows the quantity. Twenty parts and two thousand parts have the same drawing and completely different lead times, and a lead time given too early becomes a complaint later.
Metal fabrication shop FAQ
Does the agent give the price of a part made to a drawing?
No, and that is on purpose. A part made to a drawing depends on material, thickness, finish and quantity. The agent gathers all of that and hands the finished request to your estimator to set the price.
Can it receive a PDF drawing over WhatsApp?
Yes. The file stays attached to the conversation and goes along with the contact in the CRM, so nobody has to resend it to the estimator.
Can it turn down a request for a single part?
It applies the rule you write. If the minimum run is ten parts, it says so right away, in your words, and still records the contact.
Does it work for businesses that sell more by referral than through a website?
Yes. The agent answers on the number your customers already use. Referrals keep arriving the same way, only now they are answered right away.
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 sales examples for businesses, to try out 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
Answers questions about processes, materials, minimum run and lead time, and asks for the drawing before quoting. 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