• SIA Approved Contractor — London
Defence Security Solutions provides SIA-licensed security guards across all 32 London boroughs, deployed 24 hours a day, 7 days a week. SIA Approved Contractor ref: DESESOSC02. BS 7858 vetted. Founded 2015. Company No. 09553309.
Mon–Sun, 24 hours
London-based consultant visits within 48hrs
Mon–Sun, 24 hours
Central, North, South, East & West London
Call our London operations centre
Defence Security Solutions provides SIA-licensed manned guarding across all 32 London boroughs, deployed 24 hours a day, 7 days a week. SIA Approved Contractor ref: DESESOSC02. BS 7858 vetted. Founded 2015. Company No. 09553309.
Manned guarding is a professional security service that places trained SIA licensed security officers at your premises to protect people, property, equipment, and business operations
Unlike remote monitoring systems, manned guarding provides an immediate physical presence capable of responding to situations as they occur.
Fixed post — access control, reception management, visitor logging
Vehicle or foot patrols — perimeter checks, car parks, site rounds
Retail loss prevention, covert surveillance, corporate environments
Every officer is SIA licensed, BS 7858 vetted, and backed by our 24/7 operations centre.
Monitoring entry and exit points, verifying credentials, and maintaining visitor logs at your London premises.
A visible, deterrent presence at reception, gate, or perimeter for offices, warehouses, and retail sites across London.
Scheduled or random foot and vehicle patrols of your site perimeter, car parks, and grounds.
Providing a professional first point of contact while maintaining strict security procedures for employees, contractors, and visitors.
Full written incident reports submitted within 24 hours, with witness statements where required.
Protecting valuable equipment, stock, vehicles, and infrastructure against theft, damage, and unauthorised access
Every DSS guard is backed by a live control room staffed around the clock from our London base.
Our London consultants build bespoke security plans for any site, sector, or requirement.
From the City of London to Westfield — we guard London's most complex environments.
Grade-A offices, City of London, Canary Wharf, reception management
Loss prevention, Oxford St, Westfield, high-street and shopping centres
Site security, access control, material theft prevention across London developments
Corporate launches, private functions, public gatherings across London venues
Hotel lobby, front-of-house security, London members' clubs and restaurants
Patient management, lone worker protection, NHS and private London sites
Concierge security and access control for London apartment blocks
Campus security and safeguarding support for London universities and schools
Protecting warehouses through access control, patrols, and asset security.
Securing distribution centres with vigilant officers and controlled site access.
Providing reliable protection for logistics facilities, vehicles, and valuable cargo.
Maintaining safe commercial offices with professional on-site security officers.
The effectiveness of manned guarding depends on the quality of the people protecting your premises.
Our security officers are trained to remain alert, approachable, and professional at all times. In addition to maintaining a visible security presence, they assist with access control, visitor management, emergency procedures, conflict management, and detailed incident reporting.
Every officer represents your business professionally while ensuring your site remains safe, secure, and well managed throughout every shift.
No two sites require exactly the same level of protection. We work closely with every client to understand operational risks, security objectives, and site-specific requirements before recommending the most appropriate guarding solution.
Whether you require daytime reception security, overnight static guarding, weekend cover, or a fully managed 24-hour security presence, we can provide a flexible service that adapts as your business evolves.
From first contact to officer on-site — typically within 48 hours.
01
A London-based consultant visits your premises, assesses the risk, and discusses your requirements within 48 hours.
02
DSS produces a written risk assessment and assignment instructions — your legal record under HSE guidelines.
03
We match officers from our London pool to your site profile. Every officer receives a full briefing before their first shift.
04
Your account manager provides a direct line for daily queries. Monthly reviews ensure standards are maintained.
Whether you need a single officer on a retail floor or a full security operation across multiple sites, our team has the licences, the training and the experience to get it right. Every officer is briefed to your specific requirements before their first shift.
We hold full ACS status under reference DESESOSC02, independently assessed across 78 areas of business performance by the Security Industry Authority. This is not a membership or a self-declared standard — it is a formal quality assessment that relatively few UK security companies pass. You can check our status on the SIA register whenever you wish.
Almost all of our clients choose to stay with us. That is not something we achieved through aggressive account management — it is the result of officers who show up properly, operations that run without drama and account managers who actually respond when something needs sorting. We think that is the least a client should expect, and we work hard to make sure they get it.
Every officer we deploy has been screened under BS 7858 before they arrive on your site. That covers five years of employment history, criminal record checks, financial background and personal references. There are no shortcuts in our recruitment process because the people we put in front of your clients and staff are a direct reflection of us.
Our operations team is available 24 hours a day, seven days a week, including weekends and bank holidays. If something needs dealing with at two in the morning, there will be someone at Defence Security Solutions to pick up the phone.
We have been operating since 2015, which means we have spent twelve years learning what works, what does not and what clients actually need from a security company in London. That experience runs through every contract we manage, from a single static post to a large-scale multi-site operation.
Every client has a named account manager who knows their sites, their preferences and their expectations. You will not be handed between departments or left waiting for a callback — your account manager is your consistent point of contact throughout the contract.
With more than 900 trained, SIA-licensed officers across our operations, we have the capacity to respond to requirements of any size — a single post, a team deployment or a rapid response to an urgent request. Scale has never been a problem for us.
The Protect Duty — known as Martyn’s Law — will place new legal obligations on venues and events across the UK to have protective security measures in place. Our team is ready to help clients understand what those obligations mean in practice and how to meet them without overcomplicating things.
Manned guarding is a professional security service where trained SIA licensed security officers are deployed to protect people, property, and assets through a visible on-site presence, access control, regular patrols, and incident response.
We provide manned guarding services for commercial offices, construction sites, warehouses, retail premises, residential developments, industrial facilities, educational buildings, healthcare sites, and corporate properties throughout London.
Yes. Every security officer is fully licensed by the Security Industry Authority (SIA), professionally trained, and screened in accordance with BS7858 standards.
Yes. We offer flexible security cover, including daytime, overnight, weekend, temporary, and 24/7 manned guarding services depending on your operational requirements.
Deployment times depend on your location and security requirements. Our management team works efficiently to provide experienced security personnel as quickly as possible while maintaining our high recruitment and compliance standards.
E1–E18
EC1–EC4
N1–N22
NW1–NW11
SE1–SE28
SW1–SW20
W1–W14
WC1–WC2
We also cover the surrounding Home Counties — Essex, Kent, Surrey, Hertfordshire, and Buckinghamshire — for clients with multi-site requirements.
If you’re looking for reliable manned guarding services in London, Defence Security Solutions is ready to help. Our experienced security professionals provide dependable protection tailored to your business, helping safeguard your people, property, and operations.
Contact our team today to discuss your security requirements and receive a tailored manned guarding solution for your premises.
We respond within 1 hour. No obligation. A London-based consultant will call you back to discuss your requirements.
Trusted by 200+ London businesses
Since 2015— 10 years in London security
