Mobile Signal Boosters UK

Poor indoor mobile signal can disrupt calls, slow data speeds, and impact productivity. easyNetworks provides professionally installed, Ofcom-compliant mobile signal booster systems designed to deliver reliable 4G and 5G coverage throughout your building.

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All UK networks

OFCOM compliant

Most powerful in UK

Free survey

What is a Mobile Signal Booster?

A mobile signal booster system improves indoor coverage by capturing available outdoor signal, amplifying it, and redistributing it within your property. The result is stronger, more stable voice calls and faster mobile data where you need it most.

Our systems are commonly used in:

  • Offices and commercial buildings
  • Warehouses and industrial environments
  • Residential properties with poor coverage

Are Mobile Signal Boosters Legal in the UK?

Signal boosters are legal in the UK when they meet Ofcom licence-exempt requirements. Using non-compliant devices can interfere with mobile networks and may result in enforcement action.

easyNetworks installs only approved systems, including industry-leading Cel-Fi technology, ensuring full compliance and reliable performance across all major UK networks.

Product images of Celfi Quatra from Nextivity with Ofcom logo over orange circle.

Solutions for Every Building

Every building presents a different challenge, which is why each system is designed around your specific environment.

For smaller spaces, a single-unit solution can stabilise signal in key areas. Larger offices benefit from multi-room systems that distribute coverage evenly, while complex environments such as warehouses or multi-floor premises require scalable solutions designed for full-building coverage.

Hand holding a phone with mobile survey app loaded.
3 people wearing cloud phone system headsets.

Request a Signal Assessment

If poor mobile coverage is affecting your business or property, easyNetworks can help.  Contact us today to arrange a consultation and receive expert advice.





    Our Installation Process

    We take a structured, consultative approach to ensure the right outcome:

    1. Initial consultation to understand your signal issues
    2. Site survey (where required) to measure coverage
    3. System design tailored to your building
    4. Professional installation with minimal disruption
    5. Testing and optimisation to ensure performance

    Costs and Pricing Guide

    The cost of a mobile signal booster system depends on the size and complexity of the installation.

    As a general guide:

    • Small systems typically start from £500–£1,500
    • Office environments range from £2,000–£10,000+
    • Larger commercial systems are priced based on requirements

    Following an initial assessment, we provide clear and transparent pricing aligned to your needs.

    Why Choose easyNetworks?

    easyNetworks has over 25 years’ experience delivering business connectivity solutions across the UK. Our focus is on reliability, compliance, and practical results in real-world environments.

    • Ofcom-compliant, carrier-approved systems only
    • Experience across multiple industries
    • End-to-end service from survey to support
    • Scalable, future-proof solutions

    Causes of Poor Signal

    Many buildings are not designed with mobile coverage in mind. Materials such as concrete, steel, and modern insulation can significantly reduce signal strength. In addition, distance from mobile masts and network congestion can further impact performance.

    A professionally designed signal booster system addresses these challenges by bringing usable signal into the building and distributing it effectively.

    What our customers say about our mobile signal boosters

    FAQs about mobile signal boosters UK

    Is your mobile signal booster Ofcom compliant?

    Our mobile signal boosters are fully Ofcom compliant, ensuring they meet the highest standards for safety and performance. Enjoy enhanced signal strength, reliable connectivity, and peace of mind knowing your booster is approved by the UK’s communications regulator.

    What is Nextivity Cel-Fi?

    Cel-Fi is a line of advanced mobile signal boosters developed by Nextivity. These devices are designed to enhance cellular signal strength and quality for improved voice and data performance in various environments, including homes, offices, and vehicles.

    How does a mobile signal booster work?

    The mobile signal booster uses intelligent signal processing technology to amplify weak cellular signals. They receive the existing signal from the nearest cell tower, boost it, and then rebroadcast the amplified signal within the desired coverage area. This results in stronger, more reliable cellular connectivity.

    Are Nextivity Cel-Fi mobile signal boosters legal to use?

    Yes, They are designed to comply with regulatory standards set by organizations such as Ofcom in the UK. Additionally, they are carrier-approved, ensuring they meet specific performance and safety requirements.

    Which networks can be boosted?

    Cel-Fi boosters are compatible with most major UK mobile network operators.

    What is the difference between a mobile signal repeater and a Wi-Fi signal repeater?

    Wi-Fi signal repeaters (or boosters) are devices that extend the reach of your Wi-Fi network by amplifying weak signals to reduce Wi-Fi dark spots and improve coverage.  Mobile signal boosters improve the mobile signal received from mobile networks indoors.

    Will certain materials in my building affect the unit from working correctly?

    Yes, some building constructions can have an impact on the coverage of the solution.  Older buildings often have thicker walls restricting the coverage and some modern buildings have foil-backed insulation and thermally-reflective glass can have a similar effect.

    What's the radiation level of CEL-FI units?

    Anything with a SAR rating of less than 2.0 is defined as safe. These units have a SAR rating below 2.0.  The power emitted from these devices is not greater in general than any other wireless networking devices and smartphones.

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