Security Services · London and UK-wide · Since 1998
Security Services Across the UK
One accredited provider for guarding, CCTV, patrols and more, run under a single framework by familiar vetted officers. Protecting UK business sites since 1998.
Free and no obligation.
Security Services For Companies
One Accredited Framework, Nationwide Coverage
Across the UK, Double Check Security Group covers commercial security under one accredited framework: manned guarding, CCTV monitoring, mobile patrols, key holding and event cover.
Officers are SIA licensed and vetted, backed by a 24-hour control centre, protecting business sites since 1998. Explore our full range of security services to find the right cover for your site.
Which Security Service Do You Need?
Choose one below, or combine several under one contract.
Guarding and Reception
- On-site guardingTrained officers hold your site, control access and stop trouble before it starts. The same familiar faces are assigned, not a rotating pool, so they learn your building and your people.
- Corporate and reception securityOfficers protect a building and greet visitors without disrupting the working day. Guards are matched to your layout, hours and foot traffic, not a set package.
Monitoring and Response
- CCTV and remote monitoringLive operators watch your cameras, verify threats and escalate to keyholders or police within minutes. Reviews are event driven, so no one sits watching your staff all day.
- Mobile patrolsScheduled and random patrols check a site through the night without the cost of a full-time guard.
- Key holding and alarm responseOur team holds your keys and responds to alarms, so your staff never attend an incident alone.
Sector and Event Cover
- Logistics and warehouse securityGuards protect yards, loading bays and stock across depots and distribution sites. Cover is planned around shift patterns and high-risk points, day and night.
- Retail securityLoss-prevention officers cut shrinkage while keeping the shop floor calm and welcoming.
- Event securitySIA licensed crowd and door teams keep events safe and running to time.
Client feedback
What Our Security Clients Say
Reliable service is measured by the people who experience it every day. See what clients say about working with us
Why Choose DCS
One Provider, One Standard
Security, cleaning and facilities management run under one accountable framework, so nothing falls between suppliers.
One provider, one standard
Security, cleaning and facilities management sit under a single accredited framework, so you brief one team and hold one contract to account. That removes the gaps that appear when separate suppliers point at each other.
Faces you recognise
Low staff turnover means the officer at your door next month is the one there today. Familiar teams spot what is out of place because they know what normal looks like on your site.
Answered around the clock
A 24-hour control centre backs every contract, 365 days a year. When you need a change, extra cover or fast support, you reach a manager, not a queue.
Built around your site
Cover is planned from a real assessment of your layout, hours and risks, not an off-the-shelf package. If your needs change, the plan changes with them.
Accreditation you can check
SIA Approved Contractor status, ISO 9001, SafeContractor and RISQS sit behind the work, and you can verify them on the public registers. Standards are audited, not assumed.
Sectors and Areas We Cover
Every Sector.
Every Region.
We protect sites across sectors where risk and footfall vary widely, including corporate offices and HQs, retail and shopping, logistics and warehousing, hospitality and leisure, residential and estates, construction and vacant property, and high-risk and regulated sites.
- Corporate Offices & HQs
- Retail & Shopping
- Logistics & Warehousing
- Hospitality & Leisure
- Residential & Estates
- Construction & Vacant Property
- High-Risk & Regulated Sites
Teams operate across the UK, with strong coverage in Greater London and the South East, the North West, and the Midlands, and further into Wales, Scotland and Northern Ireland. National rollouts and remote consultations are available on request.
Explore the areas we cover across the UK or speak with our London security teams.
Assessments are free, with no obligation to proceed.
Not sure whether we cover your sector or site? Get in touch. We can assess local, regional, national and international requirements.
How It Works
How Engagement Works
From your first assessment to ongoing cover, here is how we bring your site on board.
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Understanding your site
Free Assessment
A clear picture of your site before we quote.A short visit reviews your site, risks and hours, and agrees what good cover looks like.
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A plan built for you
Site-Specific Plan
A written plan matched to your building, not a generic quote.You get a written plan matched to your building, not a generic quote.
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Officers you can trust
Vetting and Mobilisation
Vetted to BS7858 and SIA licensed before day one.Officers are vetted to BS7858, the British Standard for security screening, and SIA licensed before they start, then introduced to your site.
BS7858 vetted, SIA licensed before mobilisation -
Cover that stays matched to you
Ongoing Review and Reporting
Regular reports keep cover matched to how your site runs.Regular reports and reviews keep cover matched to how your site actually runs.
Common questions
Straight answers before you make a decision.
Clear answers on security, cleaning, facilities management, coverage and getting started with Double Check Security Group.
020 3794 8182
What do commercial security services include?
Commercial security services are the guarding, monitoring and response measures that protect a business's people, property and stock. They cover manned guarding, CCTV monitoring, mobile patrols, key holding, alarm response and event security. Most businesses combine two or three under one contract.
What does SIA Approved Contractor status mean?
It means the provider has passed the Security Industry Authority's voluntary audit of how it trains, screens and manages staff. Approved Contractor status is held by Double Check Security Group Ltd t/a T-Class UK for Door Supervision and Security Guarding. You can check any provider on the SIA register.
How much do commercial security services cost?
Cost depends on the length of contract, your location, the duties involved, the hours of cover and the number of officers. A quiet reception post and a high-risk 24-hour site sit at very different price points. Pricing follows a free assessment, so the quote reflects your actual site rather than a rough guess.
Can one provider handle security, cleaning and facilities management?
Yes. All three run under one accredited framework, which means one point of contact and consistent standards across the board. It also removes the finger-pointing that happens when separate suppliers share a site. You can add cleaning and facilities management to a security contract at any time.
How are your security officers vetted?
Every officer is screened to BS7858, the British Standard for security vetting, which checks employment history and references over the previous five years. All personnel hold a valid SIA licence and pass a DBS check before they start. Screening records are available for audit.
How quickly can you arrange cover, and what if an officer is off sick?
Cover can often be arranged within days of an agreed plan, and urgent support runs through the 24-hour control centre. Sickness and holidays are covered from a vetted local pool, so your post is never left empty. You will not need to chase a replacement yourself.
Forward Look
Preparing for Martyn's Law
New rules under Martyn's Law, the Terrorism (Protection of Premises) Act 2025, require many public-facing venues to plan for security threats. As an Action Counter Terrorism participant, our team already builds that thinking into site plans, so clients are ready rather than scrambling when the requirements take effect.
Read the Martyn's Law guidance on GOV.UK (opens in a new tab)Request a call back about your security requirements.
Read Our Resources On Security Services
Find practical advice from our security specialists
What is static guarding and when does your site actually need it?
What happens when your office building has a security breach and nobody’s prepared?
Is your office security good enough for hybrid working or are the gaps bigger than you think?
How much does corporate security cost in the UK and what affects the price?
What should a warehouse security risk assessment actually cover?
Why do warehouses keep getting broken into and what are thieves actually targeting?
How to secure a warehouse that runs 24 hours a day without overspending on security
What should you do if a security guard on your site isn’t performing?
Do security guards actually stop theft or are they just a visible deterrent?
