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Experienced Security Professionals Protecting Your Home & Business
At Main Door Security, we combine experience and technology to keep what matters safe. Our team delivers trusted, efficient, and tailored security services.
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Satisfying Clients
Committed to exceeding your expectations every time.
Who We Are
At Main Door Security, we’re dedicated to safeguarding your property, your people, and your peace of mind.
With over 30 years of combined experience — including proud service in the British Armed Forces — our locally based team delivers dependable, round-the-clock security for residential, commercial, and industrial sites across Hertfordshire and the surrounding areas.
Trusted by homeowners, businesses, and local authorities alike, we stand for professionalism, integrity, and an unwavering commitment to your safety.
We Specialise In Delivering Trusted Security Services & Professional Protection.
With over 30 years in security, MainDoor Security’s skilled professionals provide friendly, dependable, and effective solutions. We make your safety our priority.
- Highly Experienced and Qualified Security Team
- Personalised Service Tailored to Your Needs
- Fully Licensed and Insured Staff
- Friendly, Professional, and Reliable Service
What We Do
Professional Security Services Tailored to Your Home or Business.
Main Door Security Stevenage offers expert security services, SIA-approved training, and accredited First Aid courses across Hertfordshire. From CCTV and door systems to on-site guards and emergency response, we keep you safe. Our hands-on training helps you gain your SIA licence and build a career in security with confidence.
Courses
Main Door Security Stevenage offers expert security services, SIA-approved training, and accredited First Aid courses across Hertfordshire. From CCTV and door systems to on-site guards and emergency response, we keep you safe. Our hands-on training helps you gain your SIA licence and build a career in security with confidence.
Expert Security Training for Real-World Situations
Why Choose Us
Experienced, Professional, and Always Reliable Security Solutions.
We put your safety first with high-quality security services designed around you.
Professional Team
Highly trained and licensed security professionals.
Quick Response
Rapid action and 24/7 availability.
Customised Security
Solutions tailored specifically for your needs.
Trusted Reputation
Proven track record with satisfied clients across industries.
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Usually Asked
Frequently Asked Questions
What types of security services do you provide?
We cover door supervision, retail and event security, residential guarding, close protection, and construction site security.
Are your security staff licensed?
Yes, every team member is SIA-licensed, vetted, and professionally trained.
Do you provide female security officers?
Yes — we have a diverse team and can accommodate specific staffing requests.
Can I book security for a single-day event?
Definitely. We offer flexible solutions for both one-off and long-term security needs.
How long is the Emergency First Aid course?
It’s a 1-day, in-person program with hands-on assessments and real-world scenario training.
What should I bring to a course?
Bring a valid photo ID, comfortable clothing, and a readiness to take part in practical training.
What areas do you cover for security work?
We serve clients across Hertfordshire, London, and can provide coverage nationwide if required.
How do I get a quote or book a service?
You can request a quote or book a consultation directly via our website, phone, or email.
What courses do you offer?
We provide Emergency First Aid, Door Supervisor, Conflict Management, and other SIA-compliant training courses.
Where are the training courses held?
All sessions take place at our in-person training facility at the BTC Centre in Stevenage.
Do I receive a certificate after completing a course?
Yes, successful candidates receive an accredited certificate valid for work in regulated sectors.
Do I need prior experience to take a course?
No — our courses are open to beginners and include all the training needed to get started.
Looking for Reliable Security Services or Professional Training?
From licensed door supervision and event security to certified first aid courses, we deliver trusted solutions for both individuals and businesses across the UK.
Our Blog
Stay informed with the latest updates in security, training, certifications, and real-world industry insights — all in one place.
Explore Expert Advice, Industry News, And Security Insights.
