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  • Signal boosters · Warehouses

    Mobile signal boosters for warehouses

    Pickers, drivers and supervisors need signal on the floor, not just in the office. We cover warehouses and distribution centres with operator-approved CEL-FI systems.

    • Ofcom-compliant and legal
    • Single-network or all four networks
    • 4G and 5G
    • Installed and supported UK-wide

    Your free signal assessment

    An engineer measures your building and tells you exactly what will fix it.

    1. Signal on every network, room by roomWhere it drops, and by how much.
    2. The best donor signalWhere the outdoor antenna should go.
    3. A design and a fixed quoteNo obligation, no surprises.

    ✓ Backed by our 3-month money-back guarantee →

    The problem

    Why warehouses have no signal

    Metal cladding, insulated panels and high racking turn a warehouse into a shield, so handhelds and phones drop out on the floor.

    Metal cladding

    Insulated steel panels block signal from outside.

    High racking

    Full racks absorb signal between the aisles.

    Handhelds and phones

    Scanners and apps need data across the whole floor.

    Out-of-town sites

    Distribution centres are often far from the nearest mast.

    1 · Donor antenna on the roofCEL-FI2 · Network unit3 · Indoor antennas on every floor
    How it works

    Outdoor signal, brought inside

    1. CaptureA donor antenna on the roof picks up the strongest signal from each network we measured during the survey.
    2. Clean and amplifyA Nextivity CEL-FI unit boosts that signal without interfering with the network or your neighbours.
    3. SpreadSmall indoor antennas cover every floor, so phones get full signal wherever people work.
    One networkA single-network system, ideal when everyone uses the same network.
    All four networksEE, O2, Vodafone and Three from one system, for staff and visitors.
    What happens next

    From survey to full signal, usually in weeks

    One team does the whole job, so there is one point of contact from the first call to ongoing support.

    1. 1SurveyWe measure signal inside and out.
    2. 2Design and quoteAntenna plan and a fixed price.
    3. 3InstallOur own engineers, with minimal disruption.
    4. 4Test and hand overWe prove the coverage before we leave.
    5. 5MonitorOptional 24/7 signal monitoring. Learn more
    Measured results

    Mobile signal before and after our installations

    We survey every building before and after installation with our own survey app. These are real readings from recent projects, including buildings like yours.

    30installations measured before and after
    +20 dBmedian signal gain, about 100× stronger
    28% → 96%of each floor with usable signal (better than −107 dBm)
    DFDS
    Cold store · Liverpool · 1 floor · Aug 2026
    Vodafone network
    Before-123 dBm
    After-92 dBm
    Usable Vodafone signal: 0% → 100% of the floor
    DFDS
    Logistics warehouse · Kettering · 1 floor · Dec 2025
    Vodafone network
    Before-109 dBm
    After-88 dBm
    Usable Vodafone signal: 37% → 100% of the floor
    Business centre unit
    UK · 1 floor · Dec 2025
    O2 network
    Before-127 dBm
    After-75 dBm
    Usable O2 signal: 0% → 100% of the floor
    Neko Health
    Health clinic · London · 1 floor · Jul 2025
    O2 network
    Before-120 dBm
    After-86 dBm
    Usable O2 signal: 0% → 100% of the floor

    Average signal strength (RSRP) across each surveyed floor. Usable means better than −107 dBm, the level phones need for reliable calls over 4G.

    FAQ

    Warehouse signal boosters: common questions

    Can you cover a very large site?

    Yes. Systems scale from a single unit to many, covering hundreds of thousands of square feet. Our DFDS project covers 246,685 sq ft.

    Will it work in cold stores?

    Yes. We plan cabling and antenna positions to suit freezer and chilled areas.

    How long does installation take?

    It depends on the size of the building. The quote includes an installation plan, and we work around your opening hours to keep disruption low.

    Are signal boosters legal in the UK?

    Yes, if they meet Ofcom’s rules. Since the Wireless Telegraphy (Mobile Repeater) (Exemption) Regulations 2018, approved single-network boosters can be used without a licence. Multi-network systems need the networks’ consent, which we arrange. Unapproved boosters bought online are illegal, and Ofcom can act against anyone using one.

    Can one system cover every network?

    Yes. A multi-network CEL-FI QUATRA system covers EE, O2, Vodafone and Three, so staff and visitors get signal whichever network they use.

    Signal on every aisle

    Book a free signal assessment and get a design and fixed quote.

    Get a free signal assessment