Nextivity CEL-FI boosters are designed to work across all major UK and European networks. That means whether you’re on EE, O2, Vodafone, Three, or another provider, you’ll benefit from improved coverage.
This is especially useful in workplaces where staff and visitors may all be on different networks.
Wi-Fi calling can be handy, but it relies on your broadband connection. If your internet is slow or goes down, so does your ability to make calls.
A mobile signal booster strengthens the actual mobile network signal. That means you’re not relying on Wi-Fi, and you’ll have consistent coverage throughout your building.
For more of an in-depth comparison, you might be interested in this blog post: Comparing Signal Boosters vs. Other Connectivity Solutions
Pretty much any type of building where mobile coverage is poor. We’ve installed boosters in:
Offices and co-working spaces
Hotels and leisure venues
Warehouses, stores and industrial sites
Schools and healthcare facilities
Whether it’s thick walls, energy-efficient glass, or just being in a tricky location, boosters can overcome the barriers that block mobile signals.
That depends on the size and layout of the building, as well as the materials used in construction.
For smaller properties, a single system may be enough. For larger or more complex sites, we use multiple coverage units and internal antennas to ensure every corner gets reliable signal. We may even include a fibre hub.
Yes. A properly installed booster improves both voice quality and data speeds. That means clearer calls, fewer dropouts, and faster browsing, streaming, and downloads.
Not at all. Our team handles everything from site surveys to installation and testing. The key is placing the external antenna in the best possible location to capture the strongest signal, then designing the system so coverage is evenly distributed indoors.
Most installations are completed with minimal disruption, and once it’s in place, the system runs quietly in the background.
Mobile signal boosters are designed to be highly reliable, so they don’t require constant servicing. Once installed, the system will continue to deliver strong coverage day in, day out.
That said, we know this is a significant investment, which is why we offer ongoing support and can carry out periodic checks if needed - especially in larger or more complex buildings. This ensures your system continues to perform at its best and gives you peace of mind that your investment is protected for the long term.
Yes. All of our installations come with a 5-year guarantee, which is longer than the standard offered elsewhere in the industry. We provide this because we have complete confidence in both the CEL-FI equipment we use and the quality of our installation work.
For our customers, it means peace of mind, knowing that your investment is protected and that we’ll be here to support you long after the installation is complete.
It’s rare, but if something does go wrong, you’re covered. Our team can usually diagnose issues quickly, and if replacement parts are needed, we’ll handle that under the guarantee where applicable.
Yes, with our Amplifi-Qx system. This is our flagship solution, combining CEL-FI technology with our own proprietary monitoring and management software.
Unlike standard signal boosters, Amplifi-Qx provides intelligent, self-optimising coverage with real-time monitoring through our exclusive Amplifi-Qx web app and mobile app.
Available in both Digital (QUATRA) and Analogue (GO) configurations, Amplifi-Qx delivers superior performance while giving you the confidence of knowing your signal enhancement solution is always working at its best.
For smaller properties, it’s often just a couple of days. Larger commercial sites with multiple coverage units or fibre links may take a little longer, but we always plan the work carefully to minimise disruption.
Our team handles everything from the initial site survey to the final testing, so once we’re finished, you’ll have reliable coverage straight away.
How long does an installation typically take? - Youtube Video
Yes. One of the advantages of CEL-FI and our Amplifi-Qx solution is that they’re fully scalable. If your business grows, you move into a larger building, or you need to extend coverage into new areas, the system can be expanded with additional coverage units, fibre links, or antennas.
This flexibility means your investment is protected. You won’t need to start from scratch if your requirements change. Instead, we can adapt and build on your existing system to keep you connected wherever you need it.
Mobile signal boosters are a simple, effective, and legal way to solve poor mobile coverage. Whether you experience dropped calls, or you need reliable connectivity across a large commercial site, a properly installed booster can make all the difference.
If you’ve got more questions, or you’d like to find out how a booster could work in your building, fill in our free solution design and quote today.