Business Details
Your Trusted Partner for Comprehensive Security Solutions
Established with a combined 60 years of expertise in telecommunications and security, Data & Security Installations (DSI) has built a reputation for delivering reliable, tailored solutions to residential and commercial clients across the UK. Our team of highly qualified professionals specialises in cutting-edge security systems, including intruder alarms, CCTV, access control, and emergency call systems, ensuring comprehensive protection for premises, data, and people. Committed to maintaining the highest standards, we work closely with trusted partners to provide fully compliant fire alarm systems and structured data cabling, backed by manufacturer approvals and a 15-year warranty.With a focus on innovation and customer satisfaction, we prioritise clear communication, meticulous installation, and ongoing support, ensuring our clients receive durable, future-proof solutions. Our dedication to excellence has earned us a 10/10 rating on Checkatrade, reflecting our consistent delivery of quality workmanship, competitive pricing, and responsive service. Serving London, the Home Counties, and nationwide, DSI remains a trusted partner for businesses and homeowners seeking expert security and telecom solutions.
Services
Intruder Alarms
Access Control
CCTV Systems
Emergency Call Systems
Hearing Loop Systems
Data Cabling
Fire Alarm Systems
Security Fog Systems
Highlights and features
- We offer 60 years of combined experience in telecoms and security solutions.
- Our team holds Checkatrade accreditation with a 10/10 customer rating.
- We provide tailored security systems compliant with police and insurance standards.
- We deliver nationwide service with local expertise in London and the Home Counties.
- We guarantee structured data cabling with a 15-year manufacturer-backed warranty.
Associations and certifications
- Checkatrade
What people say
Excellent workmanship
Prompt response
Competitive rates
First-class service
Quality workmanship
Services
Intruder Alarms
Our modern intruder alarm systems meet police and insurance requirements, offering scalable solutions from basic residential setups to advanced commercial systems. Integrated smart technology allows remote monitoring via smartphones, ensuring real-time security management. With over 2,500 installations nationwide, we provide reliable protection tailored to your property's unique needs.
Access Control
We install digital keypads, biometric readers, and proximity systems to manage entry rights for businesses and residential complexes. Our multisite solutions enable centralised monitoring, while compliance with the Disability Discriminations Act ensures accessible entry phone systems for all premises.
CCTV Systems
From discreet dome cameras to high-definition PTZ systems, our CCTV solutions provide visual deterrence and evidence capture. Systems integrate with digital recorders and remote monitoring platforms, allowing real-time access via smartphones or laptops for enhanced security oversight.
Data Cabling
We design and install structured CAT 5e, CAT 6, and fibre optic cabling systems for offices and commercial spaces. Backed by a 15-year warranty, our solutions ensure secure, high-speed connectivity, with performance testing and reporting available for existing infrastructure upgrades.
Security Fog Systems
Our security fog systems deploy harmless, residue-free fog within seconds of intrusion detection, preventing burglaries and vandalism. Suitable for spaces ranging from small rooms to warehouses, these systems provide immediate visual obstruction without damaging property or endangering occupants.
Questions
What security systems does DSI offer for businesses?
We provide intruder alarms, access control, CCTV, emergency call systems, and security fog solutions tailored to commercial needs, all compliant with industry standards.
Are DSI's services available outside London?
We serve clients across the UK, including the Home Counties and nationwide, with installations spanning residential and commercial sectors.
How experienced is DSI in security installations?
Our team has over 40 years in telecoms and 20 years in security, with 2,500+ alarm systems installed and Checkatrade accreditation since 2019.
Do DSI's systems comply with legal requirements?
Yes, our hearing loop systems meet the Disability Discriminations Act, and all security installations adhere to police and insurance standards.
What warranties does DSI provide?
Data cabling systems carry a 15-year manufacturer-backed warranty, while other installations are supported by our commitment to quality and ongoing maintenance.
Reviews (6)
Paul Parsons
Feb 08, 2022
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We have had 2 cctv systems from this firm recently. It's a bit of a shock in this day and age when people do a really neat job and take great pride in what they have just fitted. They also seem incredibly helpful with after sales assistance as well. Cannot recommend this firm enough. 10/10.
Print Copy Sign Ltd
Aug 17, 2021
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What a great Company to do business with, from the moment we contacted them through to installation it was so very easy and at a great price, We highly recommend this company.
Bea Campbell
Jun 20, 2021
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Wouldn't use anybody else A1 service. Alarms and ongoing maintenance provided for both our commercial offices.
Chris Dyer
May 25, 2021
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Have used DSI on various occasions and most recently to install a smoke alarm system. First class service at reasanable prices. I would not go anywhere else. Highly recommended.
Paul Cawthorne
Feb 05, 2021
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I have been using DSI's services for the past 30 years and always found their staff to be helpful, knowledgeable and courteous. I can highly recommend DSI (UK) Ltd.
Trevor Wood
Apr 29, 2018
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I have known DSI for a very long time, and can heartily recommend them to anyone needing a good, reliable security company.
