About from company website
IDH Alarms Co. Ltd has been established since 1982, initially focusing on intruder alarm systems for domestic applications. Following NACOSS GOLD accreditation (now NSI GOLD) in 1994, the company secured major contracts with local authorities and the constabulary, continuing to service these for nearly 25 years.
Over the past 40 years, IDH Alarms has evolved, diversifying its services to meet the needs of a growing customer base. As an NSI Gold approved installer, IDH Alarms ensures all systems meet the highest standards of workmanship and comply with European Standards EN50131 and the UK's PD6662. Engineers are vetted to BS7858 standards.
The company designs, installs, commissions, and maintains systems across a variety of premises including domestic, commercial, industrial, schools, colleges, and corporate buildings. Their services encompass wired and wireless intruder alarms, CCTV, access control, fogging devices, fire alarms, fire extinguishers, gate control, burglary prevention, and emergency lighting. They also offer maintenance contracts for existing systems.
IDH Alarms provides an effective 24-hour service throughout Kent and the South East area.
Services
Works as
Sectors
Accreditations from company website
- NSI Gold
- ISO 45001
- Cyber Essentials
- SSIP
Clients mentioned from company website
local authorities, local constabulary.
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Questions about IDH ALARMS from the record on this page
What does IDH ALARMS do?
IDH Alarms Co. Ltd is a specialist in the design, installation, commission and maintenance of Intruder Alarm Systems, Access Control Systems, and CCTV Systems. Serving Kent, Sussex & Surrey. Their listed services include Security systems, Fire protection and Electrical.
Where is IDH ALARMS based?
IDH ALARMS is registered at 17 Edwin Street, Gravesend, DA12 1EH, in London.
What areas does IDH ALARMS cover?
IDH ALARMS states that it works across Kent, Sussex and Surrey.
How many people work at IDH ALARMS?
Accounts filed for the year to 2025 report 12 employees, which places the company in the 10-49 employees band.
What is IDH ALARMS's turnover?
IDH ALARMS does not disclose turnover: UK small-company accounts are not required to. Based on headcount and trade debtors in its filed accounts, turnover is likely to fall between £610k and £1.6m. This is an estimate, not a filed figure.
Is IDH ALARMS still trading?
Companies House lists IDH ALARMS as active, with accounts most recently made up to 2025-08-31.
What accreditations does IDH ALARMS hold?
IDH ALARMS displays NSI Gold, ISO 45001, Cyber Essentials and SSIP on its website.
What sectors does IDH ALARMS work in?
IDH ALARMS works in Residential, Commercial, Industrial, Education and Public.
When was IDH ALARMS established?
IDH ALARMS was incorporated on 1981-06-23, though the company says it has traded since 1982.