About from company website
TOTAL SECURITY INSTALLATIONS LIMITED, trading as TSI, specialises in the installation and ongoing support of security, fire, and access control systems for both domestic and commercial clients. With a legacy spanning over 50 years, the company has established itself as a trusted provider in the security sector. TSI offers a comprehensive range of services designed to protect properties and individuals.
Their expertise covers the latest in security technology, ensuring that clients receive robust and reliable solutions tailored to their specific needs. The company prides itself on its experienced team and commitment to customer satisfaction, from initial consultation through to system maintenance.
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Questions about TSI from the record on this page
What does TSI do?
Security, fire and access control systems for homes and businesses, backed by more than 50 years' experience, installation and ongoing support from TSI. Their listed services include Security systems, Fire protection and Electrical.
Where is TSI based?
TSI is registered at Unit 5 Dolphin Point, Dolphin Way, Purfleet, RM19 1NR, in London.
What areas does TSI cover?
TSI states that it works across Nationwide.
How many people work at TSI?
Accounts filed for the year to 2025 report 57 employees, which places the company in the 50-249 employees band.
What is TSI's turnover?
TSI 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 £5.8m and £15.0m. This is an estimate, not a filed figure.
Is TSI still trading?
Companies House lists TSI as active, with accounts most recently made up to 2025-12-31.
What sectors does TSI work in?
TSI works in Residential and Commercial.
When was TSI established?
TSI was incorporated on 1993-01-07.