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Big Brother All Security Ltd

Big Brother Logo


As a leading provider in Home & Business Security, our expertise is renowned and something that we are justifiably proud of. At Big Brother All Security Ltd we work at all times to increase our knowledge and professionalism to stay at the forefront of the Security Industry and our desire is to continue to set the standards that others follow. To ensure that our customers receive the best possible service, the Big Brother team regularly attend training sessions to ensure that they fully understand the products that they are installing and can efficiently carry out the task.

With over 10 years of experience within the Security Industry, we know what effective security and protection is.

Our services include:

• CCTV | Installation, Maintenance & Monitoring
• Intruder Alarm | Installation, Maintenance & Monitoring
• Fire Alarm | Installation, Maintenance & Monitoring
• Access Control | Installation & Maintenance
• Door Entry Systems | Installation & Maintenance
• Integrated Systems | Installation & Maintenance
• Security Lighting | Installation & Maintenance
• Smarthome Technology | Installation & Maintenance



Our reputation is built upon trust. Openness and assurance are fundamental to the relationships we build with our customers and are just some of the reasons why Big Brother All Security has continued to develop and grow successfully.

Honesty, trust and integrity are key parts of our company and because of this our aim is to ensure that all of our customers are fully satisfied with the service they have received. This is why 100% of our clients would happily recommend us.
We put our customers first.


We cover the M25 area and Home counties, providing a range of security products and installation services for both Commercial and Residential properties.
Our team strive to provide and maintain the highest standards or workmanship at all stages.

We offer free no-obligation quotes and are happy to answer any queries that you may have.

If you would like more information on any of our services, get in touch with our friendly team on 020 8617 3340 or online through our Contact Form.


ISO 9001


ISO 9001:2015 – Quality Management

The ISO 9000 family addresses various aspects of quality management and contains some of ISO’s best known standards. The standards provide guidance and tools for companies and organizations who want to ensure that their products and services consistently meet customer’s requirements, and that quality is consistently improved.

ISO 9001:2015 sets out the criteria for a quality management system and is the only standard in the family that can be certified to.
This standard is based on a number of quality management principles including a strong customer focus, the motivation and implication of top management, the process approach and continual improvement.

Using ISO 9001:2015 helps ensure that our customers get consistent, good quality products and services.


NSI & Safecontractor Approved



As an NSI approved company we are obliged to prove our competence on an on-going basis. We meet all relevant British and European Standards for technical performance, security screen all relevant staff, provide a high level of staff training and supervision to industry best practice standards, are comprehensively insured to protect customers and staff, and are inspected every six months by professional auditors from NSI, including random site visits.

NSI is the leading approvals and certification body that inspects companies providing home security, business security and fire safety services.
Choosing an NSI approved company ensures that the contractor you select works to the highest recognised industry standards as demanded by the Police, Fire & Rescue Services and the insurance industry.

NSI is a Security Industry Authority (SIA) Assessing Body for the Approved Contractor Scheme (ACS).



This pre-qualification assessment scheme promotes higher standards of competence and compliance through the provision of relevant industry specific and tailored health and safety assessments for all professions and sectors.
SAFEcontractor is an accreditation scheme that assess the health & safety competency of contractors and service providers. Clients have a legal obligation to ensure that external contractors and service providers working on their premises operate in a safe way. There if therefore a need to assess contractor’s health & safety arrangements and increasingly this is being carried out through SAFEcontractor.


Constructionline Logo


As a registered supplier with Constructionline, we are able to prove to our clients that we have met the required standards to work with them. To achieve the membership, we have undergone a bespoke process which aligns us to the latest industry and government standards including PAS 91:2013.