About Intruder Alarms
An intruder alarm is the standard insurance requirement for any commercial premises and most domestic sites with valuable contents. UK providers fit graded systems (Grade 2 for shops/offices, Grade 3 for higher-value, Grade 4 for vaults) with monitoring through an ARC. Police URN-registered systems get a confirmed-alarm response. Pair with a key-holding service so a real person attends when the alarm triggers.
Common use cases
- Retail or hospitality premises (Grade 2)
- Jewellery, electronics or high-value retail (Grade 3)
- Cash / vault facility (Grade 4)
- Industrial unit with portable plant
- Domestic property with valuable contents
What to look for in a provider
- NSI Gold or SSAIB-certified installer
- BS EN 50131 grade matched to your insurer's requirement
- Police URN registration and dual-path signalling (4G + IP)
- ARC monitoring with documented response process
- Annual maintenance contract included or quoted separately
Browse Intruder Alarms by county
Sample Intruder Alarms providers
See all 206 →Constant Security Services Limited
Hampshire, Berkshire, Buckinghamshire +1
View profile →Falcon Security Limited
Greater Manchester, Cheshire, Cumbria
View profile →Mercury Security And Facilities Management Limited
Surrey, Berkshire, Buckinghamshire
View profile →Region Security Guarding Ltd
Greater Manchester, Merseyside, Cheshire +1
View profile →Star Protection Services Ltd
Nottinghamshire, Derbyshire, Leicestershire +1
View profile →Propertysec (Property Security Services Ltd)
London, Greater Manchester, West Midlands +11
View profile →Other security services on SitePatrol
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