About Head Security Unit

Too many security companies treat officers as disposable and clients as numbers. We do neither.

About Head Security Unit

Head Security Unit provides SIA-licensed security services backed by over 10 years' experience across corporate, retail, and construction environments.

Every officer is SIA-licensed, DBS-checked, and managed directly by our team. We provide consistent, reliable cover — dedicated officers assigned to your site who know your building, your routines, and your risks.

We work across manned guarding, mobile patrols, key holding, event security, and CCTV monitoring for businesses of all sizes.

Built on Standards, Not Shortcuts

These are not aspirations. These are commitments we make before we deploy a single officer.

Every Officer SIA-Licensed & DBS-Checked

No exceptions. No shortcuts. Every officer who wears our uniform holds a valid SIA licence and has passed an enhanced DBS check. We verify before deployment, not after.

Fully Insured — £10M Public Liability

£10M public liability, employers' liability, professional indemnity, and efficacy cover. Not targets we are working towards. Prerequisites we met before our first officer deployed.

Immediate Response

When you call Head Security Unit, you speak to the people who run it. Not a call centre. Not an answering service. The people who are personally accountable for your security.

Directly Managed Officers

Our officers. Our standards. Our responsibility. Every officer is vetted, trained, and managed by us. Conflict de-escalation and first-aid certified. When we take on your site, we own the outcome entirely.

Officers Are People, Not Numbers

We pay fairly, train properly, and treat our officers with respect. That is not a perk — it is the reason they stay, and the reason they care about your site.

Martyn's Law Ready

Prepared for the Terrorism (Protection of Premises) Act. We help you meet your duty to protect staff and visitors at qualifying venues with proportionate, practical security measures.

What Makes Us Different

When you hire HSU, you get officers who know your site and a team that treats your security as if it were our own.

Every decision we make — from recruitment to deployment — is driven by a simple question: would we trust this officer to protect our own premises? If the answer is no, they do not wear our uniform.

We would rather turn down a contract we cannot staff properly than fill it with bodies who are not up to the job. That is the difference between a security company and a staffing agency with uniforms.

Book a Free Security Assessment

We'll visit your site, assess your risks, and provide a tailored security plan with transparent pricing. No obligation.

Or call us directly: 0333 305 0471