Business Details
42 Years
experience
Emergency
services
Expert Security & Telecom Solutions in Ewell
D S I (DSI) is a local business providing complete data, telecommunications, and security solutions to homes and commercial centres across the UK, with offices in the South East of England. Our team combines over 40 years of experience in telecoms and 20 years in security, driven by a passion for delivering exceptional service. We have built a solid reputation for our friendly and professional approach, ensuring customers return to us repeatedly. Our expertise spans intruder alarms, access control, CCTV, emergency call systems, and more, tailored to meet both residential and commercial needs. We prioritise compliance with police and insurance requirements while offering innovative solutions like smart phone-integrated alarm technology.Our commitment to quality is evidenced by our 10/10 Checkatrade rating based on 364 positive reviews. We serve London, the Home Counties, and nationwide, working with trusted partners to install fire alarm systems and security fog systems. Our structured wiring solutions are approved by leading manufacturers, offering a 15-year warranty. We specialise in hearing loop systems to meet legal requirements under the Disability Discriminations Act. Our teams technical proficiency and dedication to client satisfaction make us a trusted choice for comprehensive 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
Details
- Year established: 1984
Highlights and features
- 60 years of combined experience in telecoms and security
- 10/10 Checkatrade rating based on 364+ reviews
- Tailored solutions for residential and commercial properties
- Compliant with police, insurance, and legal requirements
- Nationwide service with local expertise in Surrey and London
Associations and certifications
- Checkatrade
- ISO 9001
What people say
Polite workman
Competitive rates
First-class service
Reliable local company
Excellent communication
Services
Intruder Alarms
Our modern intruder alarm systems are police and insurance-compliant, ranging from basic bells to advanced dual-path signalling via landline and GSM networks. With over 2,500 installations nationwide and smart phone integration, we provide scalable security for homes and businesses. Our systems prioritise reliability and rapid response, ensuring comprehensive protection against unauthorised access.
Access Control
We implement access control systems using digital keypads, proximity readers, and biometric technology to manage entry rights for personnel. Our solutions include multisite management via wide-area networks and DDA-compliant audio/video entry systems for residential blocks. These systems enhance security while maintaining ease of use for authorised users across commercial and residential properties.
CCTV Systems
Our CCTV solutions range from discreet dome cameras to overt pan-tilt-zoom systems, offering maximum visual deterrence. Systems include digital recording with remote monitoring capabilities via smartphones or central stations. We design installations for both covert and overt surveillance needs, ensuring high-resolution imaging and scalable configurations for homes, businesses, and public spaces.
Emergency Call Systems
We specialise in emergency call systems for healthcare facilities and secure environments, including nurse call buttons and psychiatric unit panic systems. Our installations ensure rapid response through dedicated paging units or integrated building systems. These solutions prioritise reliability in critical care settings while maintaining compliance with safety regulations and accessibility standards.
Hearing Loop Systems
Our hearing loop systems comply with the Disability Discriminations Act, providing clear audio transmission in public spaces like banks, churches, and reception areas. We offer installations that integrate seamlessly with existing infrastructure, ensuring accessibility for hearing aid users. These systems enhance communication accessibility while meeting legal requirements for businesses serving the public.
People
Colin
Technician
Experienced technician with over a decade at DSI, renowned for prompt problem resolution and expertise in entry phone systems. Demonstrates exceptional reliability and technical proficiency, consistently addressing complex issues to client satisfaction.
Brian
Project Coordinator
Dedicated project coordinator praised for meticulous planning and implementation of security systems. Known for exceptional client communication and going beyond standard requirements to ensure seamless project execution across residential and commercial installations.
Questions
What security systems do you specialise in?
We specialise in intruder alarms, access control, CCTV, emergency call systems, security fog systems, and hearing loop systems, with tailored solutions for residential and commercial properties.
Are your systems compliant with insurance requirements?
Yes, our intruder alarm systems meet police and insurance standards, and our hearing loop systems comply with Disability Discriminations Act regulations.
How experienced is your team?
Our team has over 40 years in telecoms and 20 years in security, with Checkatrade accreditation and 364+ positive reviews demonstrating our expertise.
Do you offer nationwide service?
While based in Ewell, Surrey, we provide security solutions across London, the Home Counties, and nationwide for both residential and commercial clients.
What payment methods do you accept?
We accept major credit/debit cards and bank transfers. Specific payment options can be discussed during your consultation with our team.
