We are located in Walkford, Christchurch,  we also serve New Milton, Poole, Bournemouth, The New Forest, Southampton, Ringwood, and London.


We specialise in wireless burglar alarm systems from the most simple Visonic system that is both easy to use and  cost effective, to Qolsys the most comprehensive, self intuitive system on the market that allows burglar alarm protection, integration of CCTV cameras, advanced video doorbells, Z-Wave home automation, and much more.

All of our systems can  be managed and monitored on your smartphone using  either the Visonic Go App, or the App.

We are still happy to maintain or repair wired alarm systems such as Texecom, but this is a diminishing market that offers few if any benefits.

Choose Services to see the other systems we install and maintain.

SDL Security is a family run business that was established in London 2005 but moved to Dorset in 2013. Our goal at SDL Security Limited is simple; to provide high-quality security solutions for our valued clients. This is exemplified by Qolsys, the newest addition to our PowerG secure wireless burglar alarm systems, that also allow CCTV cameras, and Z-Wave home automation devices to be integrated to the system using the powerful App.



Please choose from the links below the services that you are interested in. We aim to provide quick, clean, and tidy installations using market leading high quality products, for great value. Our systems are backed up by efficient and prompt routine maintenance and our responsive call out service.


"We have been using SDL Security for a number of years for gate repairs and maintenance, gate keyfob supply and configuration, gate keypad installation and set up, door locking systems with trade access timers, intercom repairs and maintenance. The work has always been completed on time and always to the highest professional standard. I would highly recommend Graham to anyone looking for any security services".

Daniel Whittle - Building Manager - Silvertrees Flat Management Company, Bournemouth.

From initial enquiry service excellent, great job done, exactly what we wanted, would recommend sdl to everyone

Davina Simmons, Ferndown

SDL Security installed a CCTV and Alarm system in 2018, very quick, straightforward and at a very reasonable cost. Instillation was quick and clean via a wireless system. No problems a year later, all is well

Paul Mapes, Sway


18 Walkford Rd, Walkford, Christchurch BH23 5QF, UK

07790 907619 / 01425 511 609

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