An access control solution that reduces effort yet enhances security…

Grosvenor Technology’s JanusC4 has been developed to answer the needs of installers and users alike.

Responsive Customer Service

Market-leading Technology



Our Market-Leading Solution

Smart security for every environment

JanusC4 is a customisable, integration-centric access control software with innovative blade-based hardware. It focuses on versatility and useability for every space.

Robust & Reliable Hardware

Our hardware has been developed by industry experts who know what you need

JanusC4 is a modular and scalable solution, so you can quickly install and expand as required.


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    Our team are on hand to help you make the most of your access control technology.  Speak to us today to find out how becoming a Partner can elevate your services.


    Read more about Grosvenor Technology & JanusC4 below 

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    Why JanusC4

    Unlock high-level security with JanusC4: Simple, Smart, Scalable

    Quality At Our Core
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    Our solutions and service set the benchmark for quality within our industry.


    Impressive Integration

    JanusC4 can integrate with a wide range of third-party security products, providing a seamless and simple way to maintain stringent security.


    Superior Security

    JanusC4 is equipped with a fully encrypted ODSP protocol, making it one of the most secure platforms in the industry.


    Migration Made Easy

    Moving or upgrading to JanusC4 is simple with our specific training and support. Reduce costs and enhance protection while providing an uninterrupted service to your clients.


    Competitive Costs
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    Despite the premium quality and outstanding service, we keep our prices competitive.


    Just some of our trusted Partners

    For over 30 years, Grosvenor Technology has worked closely with security professionals to create a system that delivers beyond expectations.

    Who is Grosvenor Technology?

    For over 30 years, Grosvenor Technology has been a consistent leader in the access control sector. Fueled by the dedication and insight of our team of experts who span the globe, we have developed solutions that answer the real needs of the industry. 

    We prioritise quality over all else, ensuring that every product we deliver will represent the high standards our Partners have come to expect from us. Whether you’re new to installing or a stalwart of the trade, Grosvenor’s dedication to training and ongoing support will mean your business will thrive.

    Why choose us as your access control solution?

    A Trusted UK Manufacturer

    As a UK-based manufacturer, we focus on offering dependable, high-quality solutions. Despite challenges like Brexit or Covid, we’ve maintained our stock levels to ensure we can fulfil demand.

    Over Three Decades of Expertise

    Founded in 1989, we’ve built a legacy of trust and reliability. With our systems installed all over the UK by our trusted installers, you can count on our unparalleled skillset and stable credentials.

    Integrated Security Solutions

    We don’t believe in a one-size-fits-all approach. From day one, we become an integrated part of your team, enabling us to provide ongoing support and updates for your specific needs.

    Industry Leaders in Access Control

    We’re dedicated to access control, and our expertise establishes us as specialists in the UK industry. Whenever you require assistance, a phone call is all it takes—our support is on hand.

    Future-Proof Your Security

    We’re continually innovating, providing you with regular software and hardware upgrades. Navigate the life cycle of your systems with absolute confidence, guided by our expertise.

    Scalable & Cost-Effective

    Whether you’re a small enterprise needing to secure just a couple of doors or a large corporation, our solutions scale to meet your needs—all at a competitive price point.

    Integration Partners

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    Making the right choice for your business

    Choosing the right solution for you and your clients means putting your trust in not only the hardware and software but also the team behind it. At Grosvenor Technology, we consistently go the extra mile to ensure the success of our Partners. We’re a global company with a local attitude, and together, we can create safer workplaces.