The customer messaging at midnight because the AC died
It's 11 p.m. on a Friday in June. It's hot. A family's mini-split just quit and they're starting to sweat. Their first move isn't a phone call: they open WhatsApp and message the HVAC company they found on Google. If no one replies, within thirty seconds they've messaged two competitors too.
That conversation is worth money. An emergency repair, a maintenance visit, maybe a new unit. And it gets decided in the first few minutes, after hours, when no receptionist is sitting at the desk.
At Catalizadora we build AI agents that answer that WhatsApp line 24/7 in your company's voice. They reply instantly, figure out whether it's an emergency or a quote request, capture the customer's details, and book the visit. All without hiring anyone to answer at night.
Why an HVAC company's WhatsApp never sleeps
The air conditioning business has brutal seasonality. In a heat wave, demand spikes and the phone never stops. The problem is that inquiries don't arrive during office hours: they arrive when the unit fails, and units fail at night, on weekends, and in the middle of a heat wave.
The receptionist works nine to five. The customer who's sweating does not. That gap is exactly where jobs get lost:
- 10 p.m. messages answered at 9 a.m., when the customer has already hired someone else.
- Sunday inquiries no one sees until Monday.
- Peak-season surges where one person can't keep up with twenty chats at once.
The AI agent closes that gap. It doesn't get tired, it doesn't take vacation in the middle of peak season, and it answers message number twenty as calmly as the first.
What the agent actually does
This isn't a "press 1 for sales" menu. It's an agent that holds a natural conversation and gets things done. For an HVAC company, that means:
Answers and triages instantly
It tells the difference between an emergency ("my AC isn't cooling and I have a newborn at home") and a relaxed question ("how much is a tune-up?"). It treats the emergency like an emergency.
Collects the details your tech needs
Equipment type (mini-split, central, window unit), brand, the symptom, how long it's been happening, where the property is. The chat lands with complete information, not a bare "hi" you have to chase down.
Books the visit
It offers the real openings on your calendar and confirms a date and time. The customer doesn't wait until the office opens to lock in their appointment.
Sends the payment link when it applies
For a maintenance deposit or a confirmed service, the agent sends the payment link right inside the same conversation.
Logs everything in the CRM
Every conversation lands neatly in your CRM: who wrote in, what they need, what got scheduled, and which channel they came from. By the time your tech reaches the property, they already know why they're there, and your sales team can follow up with anyone who asked for a quote without rebuilding the story from scratch.
Follows up so leads don't go cold
If someone asks for a quote and goes quiet, the agent can check back in a day or two, in your company's voice, instead of letting the lead die in the inbox. A polite, well-timed nudge is often the difference between a job and a lost message.
The honest math: agent vs. night-shift receptionist
Let's use numbers. Covering WhatsApp after hours with people means at least one extra shift, weekend coverage, and backup during peak season. In practice, a small company that wants genuine 24/7 response ends up talking about one or two extra salaries a month, plus benefits, plus turnover.
The AI agent has a different structure. At Catalizadora the full system (WhatsApp agent, website, and CRM) ships with MAGIA Solo for 4,500 USD, in 15 days. Monthly operation is pass-through: you pay hosting and tokens straight to the provider, roughly 200 to 400 USD a month, with no markup from us. No retainer, no locked-in license.
The difference isn't only cost. It's that the agent replies at second zero, not minute fifteen. And in an AC emergency, whoever answers first is whoever wins the job.
It talks like your company, not a generic bot
A fair worry: "I don't want my customers to feel like they're talking to a cold machine." The agent is configured with your company's voice, the way you treat customers, and the way you explain a service. It knows your equipment, your service areas, and your warranty policy. When a question falls outside the playbook, it hands off to a person with the full context, so the customer never has to repeat anything.
And it's yours, end to end
The code, the data, and the infrastructure are 100% in your name. You don't rent the agent: you own it. If you ever want to switch providers, you take everything with you. We work with the MAGIA methodology (Mapping, Architecture, Generation, Implementation, Autonomy), and that last stage is exactly the point: the system ends up running on its own, in your hands.
The next step
If your HVAC company loses messages at night, on weekends, or during peak heat, that's money walking over to the competitor who answers first.
Message our own WhatsApp agent to see it working with your own questions, or book a call with Pablo here: https://cal.com/pablo-estrada-hlqaql. In 15 minutes we'll show you what it would look like with your company's voice and services.