Looking for an AJAX alarm system in Spain? We install Europe’s market leader for expats and homeowners — without a subscription, without a call centre and without door-to-door salespeople. More than 3,000 homes since 2019, fitted by our own installers.
Official AJAX video: 4 factories · 180+ countries · 200+ certifications worldwide.Turn the sound on for a nice beat.
Subscription systems do not reach this level.Everything else is a different category.
Why AJAX is the better choice in Spain
A Spanish home needs different security work than a standard package: garden and terrace in front of the house, large sliding doors and weeks or months of vacancy while you are abroad.
Subscription providers rarely design their systems for that risk profile. Everything stands or falls on two things: outdoor detection and protection against jamming. AJAX is built for that — and you own the hardware, without a monthly alarm subscription.
1
Benefit of outdoor detection
Sensors in the garden, by the terrace or along vulnerable windows report movement before someone is inside. You gain reaction time and the burglar hears and sees that the system is already active — instead of only in the living room.
2
Outdoor siren with jamming detection
A strong siren outside is audible for neighbours and the street. Combine that with jamming detection: if someone tries to block the radio signal, you get an alert. Without that combination, a silent or jammed alarm too often goes unnoticed.
3
What is jamming?
Jamming is the deliberate interference with the wireless link between sensors and the hub. Without detecting it, a burglar can try to block alerts. AJAX monitors that connection actively; you notice interference instead of a silent system.
4
Subscription: promise vs reality
Many providers promise free installation, 24/7 monitoring and “police on the way”. In practice you pay every month, you rarely own the hardware, and the response depends on a call centre — not on noise in the street or detection in the garden. With AJAX you buy the system; there is no monthly alarm subscription.
How we secure a home in Spain
Every home is different. This is the approach we use most often.
1
Outdoor detection where possible
We prefer sensors in the garden, by the terrace and along vulnerable windows. You know in time that someone is there — before the house is reached.
2
The siren in the right place
On break-in or sabotage we place the outdoor siren where noise outside has the most effect — immediately and without you having to do anything.
3
SIM for power cuts
In Spain the meter box is often open to the street. A SIM in the hub keeps alerts active if power or internet fails.
4
Indoors only as backup
At most one indoor sensor as a safety net — but the focus is on deterring outside, wherever possible.
Read next — in menu order
This page is the last item in the Alarm system menu. Below are the pages in the same order as the menu: first the product line that leads here, then the knowledge series that starts with subscriptions.
Alarm system (product line)
Starter kitThe base we almost always install — hub, photo detector, outdoor siren
How we workFrom home visit to a working system, without sales pressure
AJAX in SpainYou are here — market leader, ownership, installation in Spain
Guides & advice (next series)
Large subscription providers in Spain regularly buy data from notaries and banks — for example about the day you receive the keys to your new home. That is why their sales reps often show up on day one offering free installation and a lifelong monthly contract for a false sense of security.
No obligation · no door sales · no subscription pressure
As an accredited partner we install ourselves and test every zone on site. During a home visit we assess your property and explain what matters in your situation. No sales talk.
Many providers in Spain work with a monthly subscription. On subscription compare you can read the downsides next to an Ajax system you own yourself. Or go to the full overview.