TSD is an electronic security Installation, service and maintenance Company based in Bristol specialising in CCTV, Alarms, Access Control & Security.

Our Security Services

Security Pad


Alarm Systems installed to the very latest standards.

Access Control

Access control system tailor made for your specific needs.


CCTV Alarm Systems designed to your requirements.

Fire Alarms

Fire alarms to keep your premises protected

Who are we?

TSD Ltd is an electronic security Installation, service and Maintenance Company based in Bristol in the southwest of England.
We are regulated by the NSI (National Security Inspectorate, Formally NACOSS) and all our systems are installed to the very latest British and European standards.
We have over 40 years experience and provide cost effective solutions to numerous clients across the southwest, who return to us time and time again.

Tailored made

All our staff are police checked and vetted in accordance with BS 7858, so you can be assured peace of mind when our sales and installation staff arrive to carry out work.
Our security systems can be tailor made to suit the individual’s needs, and in this technological age TSD puts itself at the fore-front, using the latest digital technology. Our IP cameras and access control systems use small bandwidth and thus can sit on the clients existing local network saving time and installation costs.

What people are saying

We have had an alarm system installed at our property along with CCTV. The engineer was very punctual, polite and tidy. After installation, he explained how everything worked and was easy to understand. We are very pleased with the system and suits our needs. We have a dog and the alarm has been tailored to accommodate this.

The after care service is also very good, if we have had any questions Andy is always easy to contact and available.

Louise LonghurstHanham, Bristol - May 2017
Longreach Scaffolding

We are happy with the finished product which is very easy to user and maintain.  The installation was carried out very professionally and trouble free.

We would recommend TSD LTD for both Business and Residential Customers.

Longreach ScaffoldingNeil - Director - May 2017

Trade Affiliations