Wired and wireless intruder alarm installation
Intruder Alarm Installation
Intruder alarm installation covers fitting a wired or wireless alarm system — control panel, door and window sensors, and motion detectors — sized to the number of zones needed to cover a property, distinct from any separate monitoring or call-out contract with a security company.
Definition
What Intruder Alarms covers
An intruder alarm system typically consists of a control panel, keypad, door contacts, motion (PIR) sensors and an external sounder, wired back to the panel or communicating wirelessly. Systems are sized by the number of zones or sensors needed, and can optionally be connected to a monitoring service, which is arranged separately from the physical installation.
Suitable for
- New alarm system installation, wired or wireless
- Replacing an outdated or unreliable existing alarm system
- Extending an existing system to cover additional doors, windows or outbuildings
- Alarm installation as part of a wider renovation or extension
Not suitable for
- Ongoing monitoring and response contracts, which are arranged separately with a monitoring provider rather than being part of the physical installation
- Commercial or higher-security systems requiring a specific insurance-graded specification beyond a standard domestic system
Process
How the work is carried out
- 01
Site survey
Assessing the property layout and vulnerable points to determine the number of zones needed.
- 02
System design
Agreeing wired or wireless system type, sensor positions and control panel location.
- 03
Installation
Fitting the panel, sensors and sounder, and running cabling where a wired system is specified.
- 04
Testing and handover
Testing all zones, setting up user codes, and explaining day-to-day operation.
Typical timescale
A standard domestic alarm installation is typically completed within a day; wired systems with cabling to multiple rooms can take longer.
Cost guidance
Intruder alarm installation typically costs £400–£1,000 per job in our area, with the number of zones and whether a monitored connection is included the main factors. We provide an itemised quotation after a site survey rather than a fixed headline price.
Limitations and exclusions
- Ongoing monitoring or keyholder response contracts are arranged separately with a monitoring provider, not included in the installation price
- Wired systems involve some cable routing, which we discuss and plan to minimise visible disruption
- Insurance-specific alarm grading requirements, where a policy requires them, are confirmed with your insurer before specification
Areas we cover
Intruder Alarms across Sussex, Surrey, Kent and South London
Local property styles, planning authorities and neighbourhood coverage for intruder alarms in each town we work in.
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FAQs
Intruder Alarms FAQs
Do I need a monitored alarm or is a standalone system enough?
It depends on your preference and any insurance requirements. A standalone system sounds locally when triggered, while a monitored system connects to a response service under a separate contract arranged with a monitoring provider — we can install either.
Wired or wireless — which is better?
Wired systems are often more reliable long-term but more disruptive to install into a finished property, while wireless systems are quicker to fit and better suited to retrofits. We discuss which suits your property during the survey.
Will my insurance require a specific alarm standard?
Some policies specify a particular alarm grading, especially for higher-value contents. It's worth checking with your insurer, and we can specify the system to match any requirement they set.
Discuss your intruder alarms project
Tell us about the property and what you have in mind, and we'll arrange a site visit.
Last reviewed 2026-07-28.