Protecting What Matters Most

With Expertise You Can Rely On

  • Introduction

At S1 Security, we’re more than just a security provider, we’re a trusted partner committed to protecting what matters most.

With over 15 years of experience serving businesses, venues, and communities across South Yorkshire, we’ve built a reputation for reliability, professionalism, and unmatched local expertise.

Security Driven
Built to protect what matters.
Proven Professionals
Skilled, licensed, trusted.
Complete Coverage
From planning to protection.
Standards First
No risks, just results.

01

Security-Led Approach

02

Fully Managed

03

Locally Trusted

04

Skilled Team

Specialist Security

Trusted protection for property, people.

Backed by the People We Protect.

See what our clients say about working with a security team they trust

“We’re so happy with our new loft – the quality and attention to detail are second to none.”

Reviewer
Sarah, Horsham Home Owner
4.9/5 ★

“Professional, friendly, and delivered exactly what they promised.”

Reviewer
Tom, Guildford Property Developer
4.8/5 ★

“Professional, friendly, and delivered exactly what they promised.”

Reviewer
Tom, Guildford Property Developer
4.8/5 ★

“Professional, friendly, and delivered exactly what they promised.”

Reviewer
Tom, Guildford Property Developer
4.8/5 ★

“Professional, friendly, and delivered exactly what they promised.”

Reviewer
Tom, Guildford Property Developer
4.8/5 ★

Frequently Asked
Questions.

Everything you need to know before getting

started straight answers from the experts.

Are your security guards SIA licensed?
Yes, all our guards are fully SIA licensed and vetted.
What types of properties do you cover?
We secure offices, retail stores, venues, construction sites, and more.
Do you offer 24/7 security services?
Yes, we provide round-the-clock security tailored to your needs.
Can I hire security for a one-off event?
Absolutely — we specialise in short-term and one-off event security.
How quickly can you deploy staff?
We can deploy trained staff quickly, often within 24 hours.
Is your company insured and compliant?
Yes, we're fully insured and operate in full legal compliance.
How do I request a quote or consultation?
Simply contact us via phone, email, or our website to get started.

Have a question or need a tailored security solution? Our team is ready to help.

+44 (0) 7123 456789

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Securing Businesses, Venues,

and Public Spaces

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