Browse the Top Security Companies Serving London Colney

AAI Security Systems is a leading provider of security and fire safety solutions in London and the Home Counties. With over 25 years of experience, we specialise in burglar alarms, fire alarm systems, access control, CCTV, and fire extinguishers. Our NSI and BAFE-accredited services ensure compliance, reliability, and tailored protection for residential and commercial properties.

We are a professional locksmiths based in London who provide a standard 24 hour locksmith service that you can trust and rely on. We have an extensive experience in all aspects of locks, emergency lock opening and burglary repairs. Our fully trained engineers can be onsite within 30 minutes of your call day or night. Our team is to provide high quality service at competitive rates.

Chesham Locksmiths are a professional locksmiths based in London who provide a standard 24 hour locksmith service that you can trust and rely on. We have an extensive experience in all aspects of locks, emergency lock opening and burglary repairs. Our fully trained engineers can be onsite within 30 minutes of your call day or night. Our team is to provide high quality service at competitive rates.

Black and White Key Security provides SIA-approved security services including alarm response, mobile patrols, and keyholding for commercial and domestic clients. Established in 2001, we combine 20+ years of industry experience with a family-run approach to deliver reliable, tailored security solutions. Our nationwide coverage and 24/7 emergency response ensure comprehensive protection for properties across the UK.

Amthal Fire & Security Ltd delivers comprehensive fire protection and security systems for commercial clients across the UK. We specialise in fire alarm design, CCTV monitoring, access control, and intruder alarm solutions. Our NSI Gold-certified services ensure regulatory compliance and operational safety for businesses in education, logistics, retail, and hospitality sectors.

Detectortesters is the world's leading manufacturer of compliant fire detection test solutions. We design and produce tools for smoke, heat, and CO detectors, approved by all major manufacturers. Our products ensure efficient, safe testing for fire safety professionals globally.

NSP Security designs, manufactures, and installs intelligent door security solutions for residential and commercial developments. We specialise in access control systems tailored to sectors like Build-to-Rent, Student Housing, and Hospitality. Our services include consultation, project management, and aftercare support.

SPS Specialist Protection Services provides comprehensive security solutions including SIA-licensed guards, close protection teams, and event security specialists. Established in 1999, we deliver tailored security services with industry-leading training and compliance standards. Our expertise spans physical security, covert operations, and risk management for both private and commercial clients.

Fortress Security delivers tailored security solutions including CCTV, access control, electric gates, and roller shutters for residential and commercial properties. Serving the South East since 1988, we combine advanced technology with 24/7 emergency support and a dedicated team of certified engineers. Our family-owned business prioritises customer safety through custom installations and nationwide repair services.

LSS specialises in manufacturing tamper-proof asset labels, security tags, and premium business cards. Based in Bushey Heath, we provide durable, customisable solutions for businesses seeking enhanced asset control and brand representation. Our services include full-colour printing, secure database registration, and tailored artwork support.