The house wakes up at your pace.
The blinds go up and the kitchen light comes on at the usual time. No one opened an app or hunted for a switch.
Home Is Arriving, Relaxing and Not Having to Think About a Thing.
Wi-Fi that reaches the back bedroom, a gate that closes by itself, a camera that alerts you only to what matters. In one app the whole family can use.
In a few words
ARX designs, installs and maintains technology for houses and apartments: Wi-Fi in every room, cameras, alarm, gate, video doorbell, electronic lock and lighting and climate automation. It joins the project alongside the architect or adapts the finished home, and leaves passwords and accounts with the resident.
Implementation: State of São Paulo: the capital, inland cities and the coastDesign and consulting: all of BrazilWe serve foreign companies that operate in Brazil
A full day in action
The technology no one notices.
In a well-designed home, no one talks about technology. The internet works, the gate closes, the alarm arms. Life happens on top of it.
Class and meetings don't compete for signal.
Wi-Fi reaches the office, the back bedroom and the pool area equally. No one blames the internet provider.
The doorbell rings on your phone.
You're at work, you see the delivery person, talk to them and agree on where to leave the package.
The housekeeper comes in with her own code.
The code works only on the agreed days. There's no copied key circulating.
The gate opens when the car arrives.
And it closes on its own, quickly. No one has to get out of the car on the sidewalk to look for the remote.
The house sleeps armed, without false alarms.
The ground-floor alarm arms at bedtime. A person in the yard triggers an alert. A cat, rain or headlights do not.
What tends to cause trouble
The problems of those who look after this space.
The internet doesn't reach the bedroom.
The plan you pay for is good, but the signal doesn't cross the house. A repeater cuts speed and doesn't fix it. The problem is the distribution inside the home, not the provider.
One app for each thing.
Camera in one, alarm in another, gate in a third. In the end, only one person in the house knows how to use them. And when the installer disappears, no one knows the password.
The alarm no one arms anymore.
It went off in the middle of the night because of the cat, twice. The family stopped arming it. A poorly chosen, poorly placed sensor turns protection into a nuisance.
What ARX does here
You choose where to start.
From a one-off adjustment to a complete project. Each solution works on its own and gets better alongside the others.
Internet and Wi-FiThe same signal in every room, with cable run to each Wi-Fi point.Smart camerasGate, entrance and yard, alerting you to people and vehicles, not cats and rain.AlarmsSensors that coexist with pets and alert you through two channels.Access controlA fast gate, a doorbell on your phone and a personal code for each person.Comfort and automationLights, climate and blinds in simple scenes that the whole family uses.Maintenance and supportSomeone who responds when there's a problem and keeps everything up to date. On request.
Equipment
What usually goes into this type of project.
Examples. The final choice depends on your space and your budget.
A set of access points that talk to each other to cover a home, shop or small office.
You see and talk to whoever rang, from your phone, before opening.
For facades, courtyards and garages. Sees far, day and night.
Connects intrusion, smoke and water sensors and alerts you through the app within seconds.
What hardly anyone tells you
Before asking for a quote, it's worth knowing.
Wi-Fi cameras are the easiest to knock out.
There are news reports about signal jammers used to take wireless cameras offline. A wired camera with recording inside the home doesn't depend on Wi-Fi. During construction or a renovation, running the cable costs little.
The time to decide is before the drywall.
While the house is under construction, each network point, camera and automation device goes into the conduit and disappears into the finish. Once it's done, the same point costs more and may stay visible. Call us in alongside the architect.
Home thefts are falling in São Paulo.
According to the State Department of Public Security, thefts and robberies at homes fell 26% in the state from January to September 2025, compared with 2024. Selling fear is dishonest. Peace of mind and convenience are reason enough.
Rules and precautions
What needs to be respected.
The camera frames your property.
A camera that captures a neighbor's window or yard creates conflict, and sharing the footage can create liability. We position each one to frame your home and, if needed, mask the adjacent area out of the image.
Anyone who works in the home needs to know.
Tell staff about the cameras. Never install them in a bathroom or in the room of someone who sleeps on the job. Inside the home, cameras only where the family decides, with an option to turn them off.
Passwords and accounts stay with you.
A camera with a factory password is an open window to the internet. We change them all, separate the devices onto their own network and keep the accounts in your name. Our access for maintenance only with your authorization.
Questions and answers
Why doesn't Wi-Fi reach every room?
Because a single device can't get through walls, slabs and distance. A repeater helps little and cuts speed. What works is running cable to well-distributed Wi-Fi points that act as a single network: you walk through the house without the connection dropping.
Wi-Fi camera or wired camera?
Wired, whenever possible. It doesn't depend on the wireless signal, receives power over the same network cable and records inside the home. A Wi-Fi camera is for a spot the cable can't reach, with its limitations in mind.
Do I have to pay a monthly fee to have cameras and an alarm?
Not necessarily. There are systems where cameras and the alarm record and alert you on your phone without a monthly fee. If you want a company to follow up on the alarms, that service is contracted separately, with whoever you choose. Preventive maintenance is optional and on request.
My house is already finished. Can it be installed without tearing everything up?
Yes. We use the existing conduit, ceilings and baseboards, and use wireless sensors where cable can't pass. During the visit we show what stays hidden and what would be visible, so you can decide beforehand.
Does ARX serve homes? What about beach or country houses?
Yes, we serve houses and apartments, as well as businesses. Implementation is done in the State of São Paulo: the capital, the countryside and the coast, where we choose equipment more resistant to salt air. Design, consulting and retrofit projects serve all of Brazil.
Shall we talk?
Tell us what you want to solve. ARX replies clearly, with no obligation.