Expert Fire Alarm Contractors in London by Infinity Fire and Security Ltd
As leading BAFE and SSAIB accredited fire alarm contractors in London, Infinity Fire & Security delivers premium life safety solutions for commercial properties. Our expert engineers provide complete peace of mind through bespoke system design, professional installation, and proactive maintenance, ensuring your premises always comply with the latest British Standards.

We minimise property risk and protect lives by maintaining high-quality fire detection systems, portable extinguishers, and advanced smoke controls. Committed to exceptional service and complete transparency, our trusted team builds long-term client relationships across London, ensuring that your critical safety compliance programmes perform reliably whenever they are needed most.
Our Mission
At Infinity Fire & Security Limited, our mission is to provide the best quality fire detection and life safety systems for your site, so you remain compliant.

By combining expert design, professional installation and proactive maintenance, our team ensures every system works when it matters most. We work to the highest UK and British Standards, to reduce risk and provide complete peace of mind.

Our goal is to build long-term relationships based on trust, transparency and exceptional service.
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Call Now 0203 576 2310
We are:
  • BAFE Accredited
  • SSAIB Third-Party Accredited
  • Fire Industry Association (FIA) member
  • ConstructionLine Silver member
  • SafeContractor Accredited
  • SSIP Authorised
  • Fully Insured up to £10M
Our Services
Life Safety Services
Fire detection systems
We design, install, maintain all types of fire alarm systems of any size and type.
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Portable Extinguishers
Fire extinguishers provide an essential first line of defence, stopping small fires
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Sprinkler & gas suppression systems
Alongside fire detection systems, sprinkler and gas suppression systems
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Emergency Communication Systems
Emergency Communication systems provide clear, controlled communication
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Smoke Control Systems
Smoke control systems are designed to protect lives and property by managing
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Dry/Wet Risers
We supply, install, and maintain dry and wet riser systems to support firefighting
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Infinity Fire & Security
Our 4-Step Fire & Security Process
01
Inspection & Risk Analysis
02
System Planning & Setup
03
Testing & Activation
04
Monitoring & Maintenance
Why Partner with Us?
Our commitment to providing top-notch systems and services makes us stand out from the rest. We are trusted by our clients due to our:
  • Fully Accredited Experts: We hold prestigious BAFE, SSAIB, and FIA certifications, proving our technical competence and strict compliance with British Standards.
  • Complete Life Safety Coverage: From initial system design and professional installation to proactive maintenance, we handle all your commercial fire safety needs.
  • £10M Insured Protection: Our comprehensive operations are fully backed by ten million pounds in insurance, giving your business absolute peace of mind.
  • Transparent Partnership: We reject hidden costs and generic solutions, focusing instead on building long-term relationships based on clear communication and trust.
  • London-Centric Service: Based locally, our engineering teams respond rapidly to commercial properties across London to keep your compliance up to date.
What Our Clients Are Saying
"We needed a complete fire alarm upgrade for our central London office. Infinity handled everything seamlessly, from design to BAFE certification, working around our hours to prevent disruption. Highly recommended."
"Switching our annual maintenance and extinguisher servicing to Infinity has been fantastic. Their London-based technicians are thorough, always arrive on time, and provide completely transparent reporting."
"When a system fault occurred on our premises, Infinity responded incredibly fast. Their local engineer identified and fixed the issue on the spot. Exceptional responsiveness and expertise."
"Infinity keeps our commercial buildings fully compliant with British Standards without any hidden costs. They are an invaluable, trusted asset to our ongoing property management."
Frequently Asked Questions

Yes. We configure advanced cause-and-effect programming to interface panels with your infrastructure. This automates critical actions like releasing access-controlled doors, shutting down HVAC units to stop smoke spread, and triggering smoke ventilation systems.

We install intelligent, addressable systems with multi-sensor detectors that analyze both heat and optical profiles. Using drift compensation and pre-alarm thresholds, they easily distinguish between genuine fire threats and benign factors like steam or dust.

A standard inspection takes two to four hours. In line with BS 5839-1, we test at least 25% of your devices during each quarterly visit, ensuring 100% of your system is thoroughly verified over a 12-month cycle.

Yes. While we recommend open-protocol systems for long-term flexibility and cheaper parts, our team has the proprietary software and training required to maintain, service, and program restricted closed-protocol networks as well.

Contracted clients receive guaranteed 24/7/365 coverage. We guarantee a qualified engineer will be on-site at your London premises within four hours of a critical fault report, though our local teams usually arrive much faster.

Often, yes. If testing confirms your existing cabling is healthy and meets BS 5839 fire-resistance standards, we can retro-fit modern addressable panels and devices onto the current loops, saving you significant time and structural disruption.

Yes. With the UK PSTN analogue shutdown, old landlines are obsolete. We upgrade properties to modern dual-path signaling systems (like CSL DualCom) that use roaming 4G/5G channels alongside an IP network for uninterrupted monitoring.

The building's designated "Responsible Person" (employer or landlord) holds ultimate legal liability. However, hiring a third-party accredited contractor like us fulfills your legal duty to appoint "competent persons," protecting you during audits.

Absolutely. If a new Fire Risk Assessment requires upgrading your coverage (e.g., from Category L3 to L1), we can redesign, extend, and re-commission your existing system to meet the new legal threshold without requiring a total replacement.

Get In Touch

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    Infinity Fire & Security
    Book A Site Visit
    We love our customers and prioritise delivering the best customer experience. Send us a message and we will arrange an appointment to meet you.
    Call Now 0203 576 2310
    Working Time Mon to Fri = 09:00 - 17:00
    Sat = Closed
    Sun = Closed
    Location 20 Wenlock Road, London, NI 7GU
    Our partnerships and accreditations
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