How much does sensor installation cost
The price depends on the type of sensor (wired or wireless), how many installation points you need, and how tricky the cable routing is. Wireless Wi-Fi sensors take 20-30 minutes each — they run on batteries and send alerts straight to your phone. Wired systems need to be connected to a controller and require cable runs, they take more time, but they are more dependable. Basic fixings are included in the service price; sensors and controllers are billed separately. You can see current prices in the table below.
| Service | Price |
|---|---|
| Leak sensor installation | 120–220 zł/pkt |
| Motion sensor installation | 120–220 zł/pkt |
Indicative prices. Ranges for a typical scope. Fixings included, materials separate. Minimum order 300 zł.
What it costs and how to book: sensor and camera installation in Warsaw.
Leak and motion sensor installation: how the work goes
- You send photos of the areas where you want sensors, the technician works out the number of points and gives you a quote.
- Timing depends on the tradesperson you choose: they give the arrival time in their offer.
- On site, the technician checks the best locations: leak sensors go on the floor near the sink, washing machine, boiler, and radiator; motion sensors go by the entrance, in the stairwell, garage, or driveway.
- For wireless sensors: they fix them in place, connect them to Wi-Fi, set phone notifications, and test the trigger.
- For wired sensors: they run cable from the sensor to the controller, connect everything according to the manufacturer’s diagram, and set the sensitivity.
- Motion sensors are adjusted for coverage area and viewing angle, so they respond to people, not your cat.
- Tradespeople test each sensor: for leaks they drip water onto the probe; for motion they walk through the detection zone. Tradespeople make sure the signal comes through.
Common mistakes when installing sensors
- Putting the leak sensor on a raised surface instead of the floor, by the time water reaches it, half the room may already be flooded.
- Installing the motion sensor opposite a window — it starts reacting to sunlight and moving branches.
- Skipping a Wi-Fi signal check at the mounting spot, the sensor drops connection through the wall.
- Not changing the battery in time: the sensor dies quietly, and you find out only during a real leak.
- Mounting the motion sensor too high — the detection zone shifts upward and people pass underneath it.
- Ignoring pets, a motion sensor without pet immunity goes off every five minutes.
- Installing one leak sensor for the whole flat: you need at least one for each wet zone.
- Using cheap batteries: they run down three times faster and the sensor stops working in winter.
If the flat has already flooded, start with the steps in flooded apartment: what to do first.
What to prepare before the technician arrives
- Decide exactly where you want the leak sensors — under the sink, behind the washing machine, near the boiler, on the bathroom floor.
- Choose the motion sensor spots: entrance, stairwell landing, yard, garage.
- Buy the sensors in advance or ask the technician to suggest a model: discuss it over the phone.
- For Wi-Fi sensors: check that your router signal reaches the installation point. If it does not, you will need a repeater.
- For wired systems: make sure there is access to the place where the controller will be installed (usually near the electrical panel).
- Clear the work areas — take things out from under the sink, pull the washing machine forward.
- Install the manufacturer’s app on your phone if you are using Wi-Fi sensors, the technician will help you set it up.
- Check that there are power outlets near the controller location (for wired systems).
- If you want smart home integration (Tuya, Home Assistant), tell the technician beforehand.
- Give building access details: intercom code, parking information.
Leak and motion sensor installation in practice: a Warsaw case
A flat owner in the Mokotow district posted a request to install a leak protection system after the neighbour upstairs flooded his kitchen. Four wireless Wi-Fi leak sensors went in: under the kitchen sink, behind the dishwasher, next to the washing machine in the bathroom, and beside the boiler. All sensors were connected to one app on his phone — when one is triggered, both a push notification and an audible alarm on the sensor itself go off. The client also ordered two motion sensors: one at the building entrance to switch on stairwell lighting, and one in the yard for parking area lighting. The motion sensors were adjusted so they would ignore the neighbourhood cats. The whole installation took about three hours. A month later the client wrote that the sensor under the sink had gone off: the siphon was leaking. It was caught early and there was no major damage. That is exactly the sort of case where a sensor pays for itself with one alert.
Frequently asked questions
Which sensors are better: wired or wireless?
For a flat, wireless Wi-Fi sensors are often enough. They are simpler to install and send notifications to your phone. Wired sensors are a better choice for large houses and commercial properties where Wi-Fi may be unstable.
Do I need a solenoid valve on the pipe?
If you want full automation, yes. The sensor detects a leak and sends a command to the valve to shut off the water. But it adds to the cost and needs separate installation. A sensor with alerts is a solid start — you shut the water off by hand.
How often do sensor batteries need replacing?
On average every 1-2 years, depending on the manufacturer. Good sensors warn you about a low battery through the app. Use decent batteries: this is not where you want to save money.
Will the motion sensor trigger on pets?
If you pick a model with a Pet Immune function, no. These sensors ignore movement from objects weighing up to 20-25 kg. Ask about this option when choosing a model.
Can sensors be connected to a smart home system?
Yes. Most Wi-Fi sensors work through Tuya, Zigbee, or Z-Wave and integrate with Home Assistant, Google Home, and Alexa. If you already have a system, tell the technician so matching sensors can be chosen.
What is included in the installation price?
Labour, fixings, configuration, testing, and travel within Warsaw. The sensors themselves, batteries, and controllers are charged separately. You can buy them on your own or ask the technician to supply them.
Does a leak sensor help with home insurance?
Yes, some insurance companies in Poland give a discount on the policy if a leak protection system is installed. Check with your insurer: they can issue an installation certificate.
How many sensors do I need for a flat?
At minimum: one under the kitchen sink, one in the bathroom, one near the washing machine. Best case, a separate sensor for every wet point. For motion: the entrance and one or two outdoor zones.
Who does the work
Sensor installation is done by technicians with hands-on experience in smart home and low-voltage systems. Tradespeople work with Wi-Fi, Zigbee, and wired sensors from all major manufacturers. Tradespeople come with the tools, help you choose the right equipment, and configure the app.
Order in the app
Describe the job, add photos and the address. Tradespeople send their own prices and dates, and you pick one of the offers.
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