Essex · CB10, CB11
Intruder Alarms in Saffron Walden
Timber-framed buildings where cable runs are effectively impossible.

Intruder Alarms in Saffron Walden: what we come across
In a timber-framed building there is often nowhere to run cable that does not mean cutting into historic structure. Wireless is not the convenient option here so much as the only sensible one, and it is what we fit on almost every Saffron Walden period property.
Timber frames do affect radio performance: signal behaves differently through timber, wattle and thick lath-and-plaster than through modern stud walls. We account for it when siting the panel and devices rather than discovering it afterwards.
Larger properties on the outskirts often want outbuildings and garaging on the system too, which wireless handles well provided the signal path to each outbuilding is checked on the survey.
Typical jobs here
- Wireless systems in timber-framed and listed property
- Panel and device siting planned around signal through historic fabric
- Outbuildings and garaging brought onto the same system
- Pet-tolerant detection for rural households
- App control for owners away from the property
Our projects
Intruder Alarms we’ve installed

M&J Branded External Sounder
Ajax external sounder finished with M&J Fire and Security branding, fitted to a rendered wall.

Ajax KeyPad TouchScreen
Ajax touchscreen keypad beside the front door, showing the system named and disarmed after handover.

Protected Property Frontage
House frontage with the alarm sounder mounted high on the render and a CCTV camera under the eaves.
Questions
Intruder Alarms in Saffron Walden: common questions
More general questions are answered on our Intruder Alarms page.
- Does a timber frame affect a wireless alarm?
- It affects signal behaviour, yes, which is why panel and device positions get planned rather than assumed. Planned on site it works reliably; assumed from a floor plan, you get supervision faults.
- Can outbuildings go on the same system?
- Usually yes, provided the wireless link is planned for the distance and construction. We check this on the site visit.
- Is wireless secure enough for a valuable property?
- Yes. Signalling is encrypted and every device is supervised, so tampering or a device dropping out raises an alarm rather than creating a silent gap.
Process
How it works
- 01
Free site visit
We look at entry points, layout and how you use the property.
- 02
System design
We specify the panel, detectors and sirens to suit, and explain why.
- 03
Installation
Most domestic systems go in within a day, with minimal mess.
- 04
Handover
App set up on your phone, codes configured, and a walkthrough of how to use it.
- 05
Servicing
Annual servicing keeps the system reliable and batteries healthy.
Testimonials
Trusted across Essex
“I couldn't be happier with the service I received. From start to finish, everything was handled professionally and with great attention to detail. The AJAX alarm system was installed to a very high standard, and everything was explained clearly so I felt confident using it straight away. Mitch was punctual, friendly, knowledgeable, and took real pride in their work. They left everything clean and tidy, and it was obvious they genuinely cared about doing an excellent job rather than rushing through it. If you're looking for someone reliable who provides outstanding workmanship and first-class customer service, I wouldn't hesitate to recommend them.”
“Spot on from start to finish, had CCTV and house alarm system fitted to an high standard. Really tidy work and decent blokes. Would happily recommend. Mitch and Jack, keep smashing it.”
Also in Saffron Walden
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Free intruder alarms quote in Saffron Walden
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