Welcome to Indigo Systems LtdFire, Security & Electrical Services
Experts in fire systems, security and electrical services. From design and installation to ongoing maintenance across London and the South East.
↓Approved contractor credentials
Approved contractor credentials for electrical, fire safety, security and building compliance works.








Explore our core services
A focused view of the work Indigo is most commonly asked to deliver. The full service range is available on the services page.

Electrical Services
Professional electrical installation, testing and maintenance, delivered by qualified and NICEIC-approved engineers.
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Fire Alarm Maintenance & Servicing
Routine testing, inspection and servicing that keeps your fire alarm system compliant, reliable and ready when it matters most.
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Fire Alarm Installation
Design, installation and commissioning of compliant fire alarm systems, tailored precisely to your building layout and fire strategy.
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CCTV & Access Control
Integrated CCTV and access control that delivers secure monitoring, controlled access and genuine peace of mind.
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Certified expertise you can genuinely rely on
We go beyond compliance. Every solution is engineered around your building, your risks and your budget — then backed by responsive, long-term support.
- UK Certified Installers
Fully certified engineers compliant with current UK fire and electrical safety standards. - End-to-End Support
Complete lifecycle care from design and installation through to ongoing maintenance. - Responsive Support
Practical maintenance and callout support for fire, security and electrical systems. - Full Documentation
Comprehensive compliance certification for every single installation.
Featured projects
Real-world installations across NHS hospitals, landmark developments and commercial premises.

St Martin’s NHS Hospital
Life-safety and access works delivered across a live hospital environment with zero disruption to clinical care.

Priority House, Maidstone NHS Hospital
A multi-system installation combining CCTV, structured data, fire safety upgrades and automatic door solutions.

Trevor Gibbens Unit NHS Hospital
Compliance and security works in a specialist NHS unit, combining fire doors with integrated security systems.

Littlebrook NHS Hospital, Dartford
Multi-discipline works across a live NHS hospital covering fire detection, security and dedicated staff safety systems.
Trusted by Leading Organisations







Real projects across healthcare and commercial sites
Security systems, structured data and fire safety works delivered within an operational NHS facility.
Fire door installation supported by CCTV, access control and automatic door works.
Power and lighting works delivered in a live commercial broadcast environment.
Need support with fire, security or electrical systems?
Speak to Indigo Systems about design, installation, maintenance or compliance support for your building across London and the South East.